This is a setup for a Squier Classic Vibe 60 Precision Bass.
It was purchased new, but from the start, there was little slack in the truss rod.
Adjustments brought the truss rod to its limit.
Due to the weaker strength of modern wood, the truss rod is already set to a higher tension from the start, resulting in less initial slack.
When brand-new and freshly assembled, the neck is almost straight with 100% truss rod slack, but once strings are installed, it naturally bends forward.
This is a normal condition.
However, if the wood of the neck itself is weak, what happens? As expected, it bends forward significantly.
If it bends significantly, adjusting the truss rod by turning it extensively is necessary to correct the bend.
For this reason, new instruments are often sold with the truss rod already turned extensively from the start.
In other words, since the strength of wood has weakened in recent years, the solution would be to use reinforcing materials during production, but few manufacturers have implemented this.
Additionally, as expected from this state, due to the weak strength, the neck will continue to bend forward over time as strings are played.
Initial adjustment bow (over-tightened) + continued use bowing = limited truss rod adjustment range.
In recent years, it has become more common to see new instruments with almost no truss rod adjustment range or at their limit, and this is the simple reason why.
As you can see, someone with proper knowledge would naturally wonder, “Will this instrument last long?” and it is correct to say that such instruments have little chance of lasting long, even though I cannot predict the future.
It’s a shame because it sounds good and is easy to play.
To avoid purchasing such instruments, always ask the music store to check the “truss rod clearance” when purchasing.
This should be a standard procedure that music stores perform during inspection.
If they genuinely want to provide customers with good instruments, it should be a given.
However, in reality, they don’t do it.
Additionally, you must also check the effectiveness of the truss rod.
Even if there is ample truss rod adjustment, if it doesn’t work properly due to a malfunction, it’s meaningless.
Ideally, someone with knowledge should actually turn it themselves and judge the adjustment and effectiveness.
I hope this article reaches music stores.
Sell with consideration for the customer as a matter of course. Think about how you would feel if you were handed an instrument in this condition.
If you have the knowledge to indicate the amount of truss rod travel on used instruments, do the same for new ones.
It’s fine to sell instruments as “outlet items” at a discount due to reasons like insufficient truss rod travel, but clearly state the reason for the discount. If you don’t provide a reason, label them as “junk items” instead of “outlet items.”
If the instrument is in poor condition from the start, don’t sell it—return it to the manufacturer.
■枯れた鳴り: 新品のギターが持つ硬さやギラつきが取れ、まろやかで温かみのあるトーンが特徴です。アコースティックギターであれば箱全体が鳴り響き、エレキギターであればアンプを通さない生鳴りからして豊かです。
ヴィンテージ年代を再現したレプリカピックアップはこの辺りが出てこなく、素材が年月を経って劣化する「音の柔らかさ」は現行品で再現するのは難しい様子です。
DNS Guitarの過去ブログ記事でもヴィンテージレプリカピックアップメーカー「K&T」から本物のヴィンテージピックアップに交換した際の記事でもそうした体験での内容を書いています。
1. 高騰し続ける「価格」
最大のハードルは、やはり価格でしょう。特に人気モデルは年々高騰しており、状態の良いプリCBS期のFenderや50年代のGibson Les Paulなどは、高級車や家が買えるほどの価格で取引されています。なぜここまで高いのか、その理由は需要と供給のバランスに尽きます。欲しがる人は世界中にいるのに、モノは増えないからです。
As you continue to practice your guitar, do you ever think to yourself, “My guitar could sound a little better…”?
I wish my guitar sounded a little better.
I want to make a sound like that artist I’ve always wanted to play with!
If you begin to feel this way, you are ready to take the next step as a guitarist. One of the answers is to customize your guitar.
You may be thinking, “Modifying a guitar sounds so difficult…” However, even beginners can take on the challenge of modifying a guitar relatively safely. However, there are many modifications that even beginners can try relatively safely and realize amazing effects.
In this article, we will explain, in order of decreasing difficulty and in great detail, how to modify your guitar to maximize its potential and obtain your “own unique sound.
Important: Introduction]
Guitar modification is very fun and profound, but it is basically at your own risk. In particular, the process of using a “soldering iron” requires a little practice.
Please refer to this article and try from a reasonable range. If you have trouble, relying on a professional repair store is also a great option.
~ Means to change the sound~!
STEP 0: Before modification! Sound quality improvement that can be done without spending a lot of money
Before suddenly going out and replacing parts, let’s first review the “basics”. This alone will make a big difference in the sound.
Change the strings: This is the easiest and most effective way to improve the sound. Old strings lose their luster and are out of tune. Simply replacing them with new strings will bring your guitar back to life in an amazing way. Just changing the thickness (gauge) and material (nickel, stainless steel, etc.) of the strings will change the character of the sound, so experiment with different options.
Change the pick: A single 100 yen coin can change the sound. A thin pick produces a light sound, while a thick pick produces a thicker sound with more core. Different materials (celluloid, tortex, Ultem, etc.) and shapes make a big difference in feel and sound, so it is recommended to buy several different kinds of picks at a music store.
Review the shield cable: This cable connects the guitar to the amp. If they are too inexpensive, there is a possibility that they are degrading the original sound of the guitar (dropping high). Simply changing to one from a reliable manufacturer for a few thousand yen can make the sound clearer. We recommend “mogami” for professional-level high-quality sound cables in the low price range.
Mastering the amp settings: The final sound of the guitar is created by the amp, and moving the Treble, Middle, and Bass knobs slightly can dramatically change the impression of the sound. First, set everything to the middle (12:00), and then make small adjustments from there to find the point where you feel your guitar “tastes” the best.
[In order of difficulty] 5 recommended guitar modifications and customizations
Now, it’s time to move on to the world of parts replacement. Let’s take a look at them in order, starting with the relatively easy ones.
The string guide is a small metal fitting on the head of a Fender Stratocaster or Telecaster that holds the 1st and 2nd strings (and sometimes the 3rd and 4th strings as well).
If there is too much friction here, the strings will get caught when choking or arming, causing the tuning to go out of tune.
What parts should be replaced?
Roller type: Rollers are attached to the strings to facilitate smooth string movement.
Made by Graphtech: Made of “TUSQ”, a self-lubricating material that provides excellent string glide.
What you will need: New string guide (about 500-1,500 yen)
Phillips screwdriver
Replacement procedure: Loosen the strings slightly.
Unscrew the original string guide with the screwdriver.
Install the new string guide in the same place and tighten the screw.
Put the string back in place, tune it, and you are done.
With just this, tuning stability is greatly improved, especially when using the arm. This is a very cost-effective modification.
Prevention of accidents during playing! Replacing the “strap pin”
Difficulty: ★☆☆☆☆ (very easy)
Effect: Prevention of falling guitar, mental security
This is not a direct sound improvement, but it is a very important customization in the sense that “you can concentrate on playing with peace of mind. Just imagine how horrible it would be if the strap came off and you dropped your guitar while playing.
What parts to replace?
Locking strap pin: A special attachment is attached to the strap side and locks tightly to the pin on the guitar body. Once attached, it will not come off. Schaller and Jim Dunlop are well-known manufacturers.
What you need: Locking strap pins (1,500-3,000 yen)
Phillips screwdriver
(as needed): wood filler to fill the hole, glue, and a hole drill
Replacement procedure: Remove the original strap pin with a screwdriver.
Install the new lock pin with screws.
[Point] If the screw of the lock pin is smaller than the original screw hole, it will be loose. In that case, it will be necessary to fill the hole once and re-drill the hole. Otherwise, it cannot be firmly fixed.
Attach the partner attachment to the strap side and you are done.
(3) Improved sound core and extension! Replacing the “saddle”
Difficulty: ★☆☆☆☆☆ (a little challenging)
Effect: Improved sustain, overtones, and attack.
The saddle is a small part on the bridge on which the strings rest directly. It is the first point of contact where the string vibration is transmitted to the body, and a change in the material of this part will have a great effect on the sound.
What parts should be replaced? The sound varies depending on the material.
Brass: The midrange is richer and the sound is more flamboyant and has a longer sustain.
Titanium: Overall clearer, more modern sound with a quicker rise in tone.
Steel: Traditional material used in vintage Fenders. It produces a crisp, snappy sound.
Graphtech: Enriched overtones and more stable tuning. It also makes the strings less prone to breaking.
What you will need: A new saddle (one that fits your guitar type. 3,000-8,000 yen)
Allen wrench, screwdriver
Replacement procedure: Loosen the strings on the saddle to be replaced.
Remember or take a picture of the saddle’s height adjusting imo screw and the front/rear adjusting screw.
Loosen the screws, remove the old saddle, and install the new saddle.
String the strings and adjust roughly to the original height and position.
After replacing the saddle, it is always necessary to re-tune the strings to the “string height” and “octave tuning”. You will need to research these adjustments separately, but it is a good opportunity to get to know your guitar in depth.
★Points★Before replacing a saddle, check if it is the same size as the original saddle. Before replacing the saddle, check to see if it is the same size as the original saddle and purchase it. The gap between strings is called “pitch. This pitch varies from 10.5, 10.8, 11.3mm, and so on. If you make a mistake, it may cause inconvenience, so be careful.
Control the “sound” and “effect” of the sound! Pot/Condenser replacement
Difficulty: ★★★☆☆☆ (Soldering required)
Effect: Improvement of sound clarity (loss) and volume/tone effect.
This is where the soldering iron comes in. The pots are the volume and tone knobs, and the capacitors are the small electronic components connected to the tones. By replacing these parts with high-quality ones, the sound that tended to be muffled can be made clearer, and the sound loss when the volume is turned down can be improved.
What parts should be replaced?
Pots: CTS pots are the standard. Select the resistance value (250kΩ or 500kΩ) and curve (A curve or B curve) according to your guitar.
Resistance: Generally, 250kΩ is used for single coil guitars (to suppress the treble a little and make it milder), and 500kΩ for humbuckers (to make the treble stronger). Changing this resistance value alone will change the sound, but it requires a bit of advanced skill. It is best to replace the resistor value with the same value that is on the unit.
Curve: The A-curve is often used for the volume, as it matches the characteristics of human hearing.
Capacitor: Orange Drop is a well-known capacitor. Depending on the capacitance (0.022μF, 0.047μF, etc.), the “muffling” of the sound when the tone is turned down will vary.
What you need: pots, capacitors (about 2,000 yen to 5,000 yen total)
Soldering iron, solder, solder sucking wire
Radio pliers, wire strippers, etc.
Replacement procedure: Remove the strings and open the pickguard and back panel.
[Most important] Take several clear pictures of the original wiring with your smartphone.
Using a soldering iron, disconnect the wires connected to the old part.
Remove the old part and install the new part.
While looking at the pictures you have taken, solder the wiring to the new part in exactly the same way.
Assemble it back together and you are done.
★Points★The sound changes depending on the soldering technique. This is due to the damage caused by solder heat, so it is a game of can you solder quickly and carefully? If it doesn’t work, try again and again. If it does not go well, you will have to redo it many times. In this case, the sound will be degraded even if you use good parts because the parts are surely damaged by the heat.
5) Heart transplant of sound! Replacing “pickups”
Difficulty: ★★★★☆ (soldering and knowledge required)
Effect: Fundamentally changes the sound character of the guitar.
Pickups are “microphones” that convert string vibrations into electrical signals, and are the heart of the guitar’s sound. Replacing the pickups is like “changing the whole character of the guitar”. This is the king of customization, where you can enjoy the most dramatic changes.
What parts to replace?
There are countless models available from well-known manufacturers such as Seymour Duncan and DiMarzio.
Some hints on how to choose one
Vintage: Seymour Duncan SH-1 ’59, SSL-1, etc., for a warmer, more mellow sound.
Modern high-gain: Seymour Duncan SH-4 JB or DiMarzio DP100 Super Distortion for a powerful, distorted sound with clear contours.
Choose the pickup based on the direction of the sound you want to produce (blues, rock, metal, etc.) and the specifications of your favorite artists.
What you will need: New pickups (about 8,000 yen to 20,000 yen each)
Same set of tools as for pot/condenser replacement
Replacement procedure: Basically the same process as replacing pots. Open the pickguard, etc., and take a picture of the original wiring.
Remove the old pickup and install the new pickup.
Check the wiring diagram (wiring diagram) that comes with the new pickup carefully. Since the color of the wiring is different depending on the manufacturer, it may not be possible to simply connect the wires as shown in the picture.
Follow the wiring diagram and solder on the volume pot and selector switch.
Assemble it back together, string it, adjust the pickup height, and you are done (the distance between the pickup and the strings will change the volume and sound quality).
*Please be sure to prepare a “tester” for the soldering work. Pickups in particular have a “phase”, and if they are not wired in alignment with this phase, the halftone sound will be strange (phase out).
You will need a tester to know the phase of the pickups, so please check whether the original pickups are in the forward or reverse phase, and wire them so that all the pickups are in the same phase.
In summary, modification is an adventure to make you love your guitar more.
Modifying your guitar is a great process not only to make it sound better, but also to understand how your instrument works and to love it even more.
Why not start by replacing the easiest string guide or strap pins? With just one screwdriver, your guitar will become a more playable and reliable partner.
And once you are ready to grab the soldering iron, there are endless sound possibilities out there.
Take your time, have fun, and grow your own best guitar. The adventure will enrich your guitar life many times over.
※今現在でクルミラ加工された正式に音を良くする物として販売されている商品はラインナップにございませんのでご注意下さい。(私が勝手に音を良くする事として使っているだけです。)
ES Vlog Shopで販売されている「ESVLOGオリジナル電磁波対策セット」がお勧めです。(案件ではありません)
この音が変化する効果についてはこのブログ記事に載せてあるYoutubeでの実験動画をご確認下さい。
The first big obstacle you face when you decide to start playing guitar is the question of how to choose your first guitar.
There are countless guitars available at music stores and on the Internet, some from well-known manufacturers such as Fender and Gibson, and many from unfamiliar manufacturers.
The question that many beginners have is…
“I don’t really know what I’m looking for, and I should just buy a guitar from a well-known maker and I’ll be safe?”
As it turns out, that idea is half correct and half cautionary.
In this article, we will explain in detail why famous manufacturers are considered “safe,” their advantages and disadvantages, and provide concrete ways to find the best one that you will not regret.
~Why are famous manufacturers called “safe pies”: 5 advantages~.
There is a clear reason why guitars made by famous manufacturers are recommended for beginners. It is because of the “trust” that has been cultivated over many years of history. 1.
1. stable quality and few “misses” (as people think)
Famous manufacturers are thought to have strict quality control standards in order to maintain a brand image that is supported by guitarists around the world.
In reality, however, there are so-called “Atari” and “Hazure” models, even among famous and expensive models, so be careful.
Easy to keep in tune: Inexpensive guitars often do not suffer from the stress of “going out of tune” as often happens with inexpensive guitars.
The neck is not prone to warping: The condition of the neck, which directly affects the playability of the guitar, is stable.
PRS guitars are more expensive, so it is difficult for the neck to warp, but in recent years, the quality of the wood has been declining and the strength of the wood has been weakening.
The quality of the wood has been declining in recent years, and the strength of the wood tends to be weaker. This applies to many domestic models, not foreign models.
If a guitar is out of tune or difficult to play every time you try to practice, that alone will lower your motivation. Stability of quality is a very important factor for a long-lasting guitar playing experience. 2.
2. easy to produce a “model sound”
The guitar sound played by that artist you like. Many of them were born from guitars made by famous manufacturers such as Fender and Gibson.
In those days, there were not as many different brands as there are today, and the instruments available were limited to Fender and Gibson, which is why many famous artists used them.
To acquire a guitar made by a famous maker means to stand at the starting point of “the sound they were making at that time,” which is the standard for many people.
It is easier to judge whether the sound you are producing is good or bad, and it is a shortcut to improvement.
3. an overwhelming amount of information
Another great advantage is that when something troubling occurs, you can quickly find a solution.
If you search the Internet for tips on how to play and maintain your guitar, recommended equipment (amps and effectors), etc., you will quickly find a wealth of information from senior guitarists who use guitars made by the same manufacturer.
This will be a reassuring support, especially in the beginning. 4.
4. high resale value
Even in the unlikely event that your guitar does not last, you may be able to sell it for a relatively high price because guitars made by famous manufacturers are popular on the used market.
It is a little sad to think, “If I’m going to sell it anyway…,” but this is one of the practical advantages. Because it is an expensive purchase, it is wise to consider an exit strategy.
5. the desire for ownership is satisfied and motivation is increased
The joy of holding a guitar with the same logo as the one owned by the artist you admire is irreplaceable. The elation of “that guitar is mine!” This elation is a powerful motivator to keep practicing and getting better. This is a powerful motivation to “practice more and get better!
~Cautions and Disadvantages of Famous Guitar Makers
Of course, it is not all good things. There are some points to be aware of. 1.
1. the price tends to be high
The biggest disadvantage is the price. Even if the same woods and parts are used, guitars made by unknown makers tend to be more expensive than those made by unknown makers because of the added value of the brand and advertising costs. 2.
Danger of choosing a guitar based on brand name alone
If you choose a guitar only because it is “Fender” or “Gibson,” you may end up choosing a guitar that is not suited to the genre of music you want to play or your body.
Good sound” is a subjective judgment made by others. A sound that is said to sound good is not necessarily a “good sound” for you.
Sound is like our sense of taste, and it is important to choose a guitar that you like the sound of when you actually pick it up and play it.
For example, if you want to play funk with delicate cutting, but you choose a burly rock guitar with a powerful humbucker pickup, you may have a hard time getting the ideal sound.
Conclusion: How should a beginner choose?
Guitars from well-known manufacturers may be a “safe choice” in terms of quality, sound, and information content, greatly reducing the chance of failure for beginners.
But can’t other manufacturers produce a similar sound? The answer is no.
There are countless instruments that can produce a similar sound, even if they are not famous or expensive brands.
The most important thing is not the brand name. Here are some concrete steps to help you choose a guitar that you will not regret.
STEP 1: First, decide on a budget.
First, decide on a budget that you can spend on the guitar itself within a reasonable range. Generally, guitars for beginners are in the price range of 30,000 yen to 80,000 yen, and you can find many models with a good balance of quality and price.
STEP 2: Take a cue from your favorite artists and music genres.
You may say, “I want to play this kind of music! What kind of guitars do the artists you like use? Find out what direction you prefer by referring to the look and sound of the guitar.
Stratocaster type (Fender, etc.): A versatile player that can be used in a wide range of genres. Sharp and crisp sound.
Telecaster type (Fender, etc.): Characterized by a crisp, snappy sound. Popular for vocal guitar.
Les Paul type (Gibson, etc.): Thick, sweet, and powerful sound. The king of rock guitars.
SG type (Gibson, etc.): Lighter than Les Paul and easier to play in the upper register. Also popular among rock players.
STEP 3: [Most important] Go to a music store and try one for yourself!
Once you have decided on a budget and the direction of your preferences, you should gather up your courage and go to a music store. And be sure to actually hold the guitar in your hands.
Is the neck comfortable to hold?
How is the weight? Is it well-balanced when you stand up and hold it?
Does the size of the body feel right?
You cannot tell how easy a guitar is to play from its appearance or specifications alone unless you actually touch it. If you tell the store staff that you are a beginner and are looking for a guitar with a budget of about ¥0.00, they should be able to help you in a friendly manner. There is no need to be shy at all.
Recommended option: “Brands under famous manufacturers”
The best choice for those who say, “Fender or Gibson is too expensive for my budget… but I don’t want to compromise on quality” is a brand under a famous manufacturer.
Squier by Fender: A brand directly affiliated with Fender. You can experience the design and sound of the original brand at an affordable price.
The Classic Vibe series in particular is a highly recommended model because it is easy to play and sounds great at a very low price point.
Epiphone: A brand directly affiliated with Gibson. The lineup includes Les Paul, SG, and other coveted models.
Since the quality often varies from one individual to another, it is better to refer to other Gibson copy models.
Many of these brands have models with a good balance of quality and cost performance, and are chosen by beginners all over the world. As a first guitar, they are a good choice.
Conclusion
Choosing a guitar made by a well-known manufacturer for your first one has many advantages, especially in terms of quality, which will greatly help you not to fall behind in guitar playing.
However, what is ultimately important is not to be misled by the brand name, but to find a guitar that you yourself can and find a guitar that you will love.
Please visit a music store and touch many guitars. The “best partner” you feel in your hands, in your sound, and in your heart will make your guitar life more enjoyable than ever before.
C. その他(フロイドローズなど)
フロイドローズなどのトレモロユニット搭載のギターは、その構造が複雑なため、弦高調整も上記2タイプより難易度が高くなります。基本的にはブリッジ全体の高さをスタッドボルトで調整しますが、フローティングしている場合は、スプリングの調整など他の要素も絡んできます。
各弦の高さ調整はサドル下にプレートを挟み行います。
The “bridge” is the part that greatly affects the sound, sustain, and even playability of an electric bass.
By replacing the bridge, you can enjoy a variety of benefits, from dramatic improvements in sound quality and tuning stability to a customized appearance.
However, replacing the bridge is more than simply unscrewing and replacing the screws.
Proceeding easily without knowledge can, in the worst case, result in damage to the body of the bass or render it unplayable.
In this article, for those who are considering replacing the bridge on an electric bass, we will explain in thorough detail the very important precautions to avoid mistakes, so that even a beginner can understand them. It is a long article, but please read it through to the end to ensure a bridge replacement you will not regret.
~Why is bridge replacement necessary? Advantages and disadvantages
Before embarking on bridge replacement, let’s first understand its purpose and the advantages and disadvantages associated with it.
Advantages of Bridge Replacement
Sound changes: Depending on the bridge material (brass, steel, aluminum, etc.), mass, and structure, the length of sustain, attack, clarity of sound, and tightness of bass notes can vary greatly. For example, a bridge with more mass tends to have a longer sustain, brass tends to have a warmer, richer sound, and steel tends to have a tighter, clearer sound.
Improved tuning stability: A high-precision bridge transmits string vibrations accurately to the body, thereby reducing tuning deviations and making it easier to maintain a stable pitch.
Improved intonation (pitch): A bridge with a precisely adjustable saddle minimizes pitch deviations at each fret, allowing the player to play at a more accurate pitch.
Greater string height and string-to-string pitch adjustment: Many replacement bridges offer finer string height adjustment and individual string-to-string pitch adjustment than the factory bridge. This allows for a more comfortable playing experience.
Customize the look: There are many different colors and designs of bridges, such as chrome, black, gold, etc., that can significantly change the overall look of the bass.
Through-body stringing: Some bridges support through-body stringing, where the strings are threaded through the back of the body. This changes the tension of the strings and may affect the sustain and sound.
◆Disadvantages of replacing the bridge and points to note
Cost: In addition to the price of the bridge itself, you will also have to pay for tools and strings if necessary. If you ask a professional to replace the bridge, you will also have to pay for the labor.
This is one of the most important points to note. As described below, if the position or size of the mounting holes do not match, wood processing (drilling or filling holes) may be required, making it difficult to restore the original. The processing cost may also be high depending on the bridge.
If the bridge is not installed correctly, the sound may deteriorate, tuning may become unstable, and in the worst case, the bridge may lift or the body may crack.
The sound quality may not be to your liking: The new sound may not always match your preferences. In particular, some people feel that the sustain is too extended or the attack is too strong. The bridge is a part that has a strong influence on the sound, so success and failure can go both ways.
Impact on resale value: Replacements that involve extensive wood work can affect the resale value of the bass.
~ Very important checkpoints before bridge replacement: 90% of failures are determined here! ~The most important thing to do when replacing a bridge is to make sure that it is in good condition.
The most important part of bridge replacement is careful preparation and confirmation before replacement. Mistakes made at this stage can lead to a situation from which there is no turning back.
1. check the current bridge type and installation method
First, check the type of bridge currently installed on your bass and how it is secured.
Top-loaded (through the front): The most common type where the strings are passed through the top of the bridge.
Through-body: The strings are passed through the back of the body. The bridge itself may have the same structure as a top-loaded bridge, but there are holes in the body through which the strings are threaded.
Dual-load: Some bridges are compatible with both top-loaded and through-body bridges.
Then, check how the bridge is fixed to the body.
Screws: This is the most common type. Check how many screws are used.
Stud bolt fixation: The bridge rests on a stud driven into the body.
Anchor Nut Fixing: Screws and studs are tightened to anchor nuts embedded in the body. 2.
2. thoroughly check the compatibility of the bridge you want to replace with the current bridge
This is the most, most important point.
Compatibility does not simply mean whether or not they look similar. The following points must be checked to the millimeter.
If you want to use the existing screw holes: Make sure that the screw hole spacing on the bridge you want to replace is exactly the same as the screw hole spacing on the current bridge. Depending on the make and model, the pitch may be slightly different even for the same Fender type. Use a caliper or similar tool to precisely measure.
If even 1 mm is off, the screws will not fit. If you try to force the screws in, you may damage the wood of the body or break the screws.
Options if the holes do not fit
A. Drilling: Drill a new hole in the body to fit the new bridge.
B. Fill-in: Fill in the existing holes and re-drill new holes.
C. Find a compatible bridge.
A and B involve machining the wood of the base body. If you are not confident about this, we strongly recommend that you have a professional do the work.
String Spacing: This is not directly related to the bridge installation, but it greatly affects the playability. String spacing is the distance from the center of each string to the center of the other strings.
If the string pitch of your current bass is significantly different from the string pitch of the bridge you wish to replace, the playing feel may change, or the position of the pickup polepiece and strings may shift, affecting the sound. Also, since the width of the fingerboard does not change, but only the string width, if the pitch is wider than the original string pitch, the strings will be closer to the end of the fingerboard and there is a possibility that the strings will fall off.
Generally, the standard pitch between strings on a 4-string bass is 19mm, but depending on the brand and model, it may be 18mm or 17mm. Be sure to check before replacing strings.
If your current bridge is top-loaded, even if you replace it with a through-body bridge, it will not work with a through-body if there are no holes in the body for the strings to pass through. (In that case, you can still use it as a top-load bridge.)
If you wish to use a through-body, drilling into the body is required. This is a very difficult process and should be done by a specialist.
When changing from front-through to back-through strings, it may be necessary to use strings with a longer string scale.
This is when the position where the string becomes thinner cannot go over the nut due to the back-threading, the thicker part of the string will not ride on the nut and the open strings will sound choked.
If this occurs with long scale strings, extra long scale strings must be used.
Bridge height and saddle range of motion: If the minimum string height of the bridge after replacement is higher than the current string height, it will not be possible to set the desired string height.
On the other hand, if you replace the bridge with one that is extremely lower than the current bridge, the string height will be too low even when the saddle is raised to its highest position.
The adjustment range of the saddle is also important. Make sure that the new bridge has enough saddle movement range to accurately match the current intonation. Especially on the bass string side, the higher the fret, the more severe the octave adjustment becomes, so a sufficient range of motion is necessary.
Overall size of the bridge: Depending on where the bridge is located on the body, a bridge that is too large may protrude from the body, while a bridge that is too small may reveal the mounting holes. It is also important to check the aesthetics. 3.
3. prepare the necessary tools
The following tools are required for the replacement work.
Phillips head screwdriver / flat head screwdriver: It is advisable to prepare several screwdrivers according to the shape of the screws on the bridge. If you use an incorrect size screwdriver, you may lick the head of the screw and be unable to remove it.
Allen key: Used for the bridge saddle height adjustment screws, the string height adjustment screws depending on the model, and the bridge body fixing screws. Most bridges come with an Allen key, but check to make sure you have the right size if necessary.
Nippers/wire stoppers: Used to cut strings.
String winder: Useful for winding strings.
Tuners: For tuning and octave adjustment after replacement.
Calipers or ruler: essential to accurately measure screw hole spacing, string pitch, etc.
Precision screwdriver set: Sometimes used for small screws for octave adjustment.
Curing tape / masking tape: It is a good idea to put this around the bridge to protect the body.
New strings: After replacing the bridge, it is generally a good idea to replace the strings with new ones.
(Electric drill, wood drill blade, wood putty, sandpaper, and paint (if necessary): These will be needed when woodworking is required. 4.
4. Secure and prepare your workspace
Work on a stable, flat surface. Ideally, the space should be large enough to allow you to work with the base lying down.
Lay out a blanket or thick cloth to prevent damage to the body of the base.
Ensure adequate lighting and an environment conducive to detailed work.
Detailed procedures for replacing the bridge and precautions at each step
Once the preparations are complete, it is time to begin the replacement work. Pay close attention to each step. 1.
1. Loosen and remove the strings.
Lower the tuning and completely remove the tension from the strings.
Cut each string with nippers. Cutting on both the head side and the bridge side will make later work easier.
Pull the strings out of the bridge. If the instrument is back-threaded, pull the strings out through the back of the body as well. 2.
2. remove the current bridge
Carefully remove the screws holding the bridge in place with a compatible screwdriver.
Turn the screw slowly, making sure that the screwdriver is the correct size and that you are not applying too much force, so as not to lick the head of the screw.
Once all the screws are removed, lift the bridge from the body.
Note: Screws are small and should be stored so that they are not lost. It is a good idea not to mix the screws with those of the bridge after replacement, in case they are later put back in the original bridge. 3.
3. clean and check the body side
Dust and dirt often accumulate where the old bridge used to be. Wipe them off with a clean cloth.
At this time, make sure there are no scratches on the body paint and no abnormalities in the wood.
4. temporarily place the new bridge and check the screw holes (most important!)
Gently place the new bridge where the old one was.
This is the most difficult part. Check with your eyes and, if necessary, recheck with calipers to make sure that the screw holes in the new bridge are perfectly aligned with the old screw holes still in the body.
Pattern A: If the screw holes match perfectly
Lucky! Proceed to the next process as is.
Pattern B: If the screw holes are slightly misaligned (less than 1mm gap)
Never screw in screws forcibly. It will lead to damage to the wood and breakage of the screw.
In this case, the existing holes must be slightly widened or filled in and new holes re-drilled.
Slightly widening the existing hole: In some cases, this can be accomplished by carefully shaving the edges of the hole with the tip of a precision screwdriver or similar tool. However, this method is limited to only a “slight” shift.
Fill & re-drill: The existing hole must be filled with wood putty or toothpick and wood glue, allowed to dry completely, and then re-drilled to match the new bridge location. This is a sophisticated process and can have a significant impact on the paint, so if you are not confident about this, we strongly recommend that you contact a professional repair store.
Check the scale line: Even if the original screw holes can be used for the replacement, do not be relieved.
There is a “fixed position of the bridge” called the scale line on the instrument.
If the scale line is not correct, the position of the saddle will be incorrect for octave adjustment (too close to the neck, too close to the end, etc.), which will cause adjustment inconvenience. In the worst case, the octave adjustment will not be possible and the instrument will be unusable.
The range of octave adjustment depends on the bridge, so in some cases, the original screw holes cannot be used, and it may be necessary to measure the position of the scale line from the neck.
Pattern C: When screw holes are very different
As with Pattern B, it is necessary to fill & re-drill the holes. This is a very risky operation, and we strongly recommend that you contact a professional. Alternatively, give up installing that bridge and consider looking for another bridge.
Even if the screw holes match, before tightening the screws just to be sure, it is a good idea to check that the screws of the new bridge fit smoothly into the original screw holes by turning them by hand. After confirming that the screws will go in without difficulty, use an electric drill or screwdriver to tighten the screws. 5.
5. Installing the new bridge
After confirming that the screw holes are perfectly aligned, carefully place the new bridge on the body.
Slowly tighten the fixing screws one by one.
Note: Do not tighten the screws too tightly from the beginning, but tighten all the screws temporarily to make sure the bridge is in the correct position.
Then, tighten the screws evenly in a diagonal line, little by little. Tightening only one part first may distort the bridge or put a load on the wood.
Be careful not to over-tighten! It may cause damage to the wood or lick the screw heads. If you feel the screw stop, do not over-tighten it any further. It is sufficient if the screws are firmly fastened with moderate torque. 6.
6. String new strings
Put new strings through the string holes in the bridge (or back-through holes) and wind them around the pegs.
We will explain how to wind the string in detail at another time, but wrapping the string tightly around the peg will improve the stability of the tuning. 7.
7. String Height Adjustment
When you have finished stringing, first adjust the tuning.
Next, adjust the string height of each string. Turn the hex screws on the bridge saddle with the supplied hex wrench to raise or lower the string height.
Adjust the string height to your liking. Generally, the bass string side should be slightly higher and the treble string side slightly lower.
Note: String height is also affected by neck warp and nut height. After replacing the bridge, it may be necessary to adjust the warp of the neck.
Check the bridge string height: Every bass bridge has an element called “bridge string height” on the bass bridge itself.
The string height cannot be raised or lowered infinitely, and there is always a limit. If the string height exceeds this range, it may cause inconvenience such as “the string height is too low and cannot be raised” or “the string height is too high and cannot be lowered any further”.
Be sure to check the “bridge string height” of the bridge to be replaced from the manufacturer’s website, and measure the “bridge string height” of the original bridge to make sure that this value does not change significantly. If there is a discrepancy of 3mm or more, it may cause inconvenience.
8. octave (intonation) adjustment
This is the most important adjustment after bridge replacement. Octave adjustment means adjusting the open strings so that the harmonics (or real notes) of the open strings and the 12th fret are the same pitch. This ensures that the pitch is accurate no matter which fret is played.
Procedure: Use a tuner to accurately tune the open strings.
Play the harmonics at the 12th fret.
Next, play the actual note with the 12th fret held down.
Compare the pitch of the harmonics and the real note.
If the real note is higher than the harmonic: move the saddle toward the body end to increase the string length. Loosen the screws holding the bridge saddle in place, move the saddle backward, and retighten the screws.
If the actual note is lower than the harmonic: move the saddle toward the neck and shorten the string length.
Repeat for each string until the correct pitch is reached.
Note: Each time you move the saddle, the tension of the strings will change, so be sure to re-tune the strings each time before checking.
This process requires a great deal of patience. Adjust the strings little by little and check them over and over again.
New strings take time to adjust, so it is best to wait a while after putting them on before making adjustments. 9.
9. recheck the neck warp and pickup height
Changing the bridge may change the tension feeling of the strings, which may cause a subtle change in the warp of the neck. In conjunction with the string height adjustment, check the condition of the neck and, if necessary, adjust it with the truss rod.
The pickup height can be changed by changing the bridge, which will also change the distance between the strings and the pickups. Adjust the pickup height if necessary to obtain the proper volume balance and sound.
Maintenance and Troubleshooting after Bridge Replacement
This is not the end of the replacement process.
Periodic retightening: Bridge screws can loosen due to vibration or temperature changes. Check regularly (e.g., every few months) to make sure they are not loose and retighten them if necessary. Do not overtighten, however.
Wood drying and shrinkage: Wood expands and contracts with humidity and temperature. Watch carefully for loose screws or lifted bridges, especially when new holes are drilled or during seasonal changes.
Check the sound: Take the time to test the new sound to make sure it is to your liking and that it does not sound unnatural. If it does not sound right, reevaluate the string height and octave adjustment, and possibly consider returning to the original bridge.
If a problem occurs…
Screws do not turn/break: Do not try to turn the screws, try a special tool (such as a screwdriver) or consult a repair store.
Bridge is lifting: Check for loose screws and retighten. If it still floats, consult a professional for possible damage to the wood or distortion of the bridge.
Choppy sound/lack of sustain: There are many possible causes: string height is too low, neck is forward warped, nut groove is too shallow, or frets are floating. Try to eliminate the possibilities one by one, or have a repair store diagnose the problem.
Summary: The key to a failure-free bridge replacement is “thorough confirmation and preparation.”
Replacing the bridge on an electric bass is certainly a DIY project. However, how carefully you conduct “preparation and confirmation” can mean the difference between success and failure. In particular, the compatibility between the new bridge and the base itself, especially the pitch of the screw holes, is the most important item that should be checked to the millimeter before replacement.
If you feel even a little uneasy, we recommend that you consult a reliable music store or repair store instead of doing the work yourself. If you ask a professional, he or she will ensure that the work is done reliably and, if necessary, the woodwork will be beautifully finished.
We hope this blog post will help you get a better sound and playability from your bass. Please take the challenge of customizing your beloved instrument with care and enjoyment!
~ Summary~.
The bass bridge is a fairly difficult element to replace.
The “scale line” and “bridge string height” are very important factors. If you make a mistake, you will waste the cost of the parts, and if you modify it, you will have to do extra work and lower the value of the instrument.
It is a difficult job that an amateur would be lucky to be able to replace with information on the Internet, so basically, ask a repair store to do the work for you.