Maya Ellison
Whether or not plastic pickup covers affect the tone of a guitar is a highly debated topic. Some guitarists claim that plastic covers have zero effect on the tone, while others argue that they can cause a slight difference, especially with cleans, making the tone a little less bright. Metal covers, on the other hand, are generally agreed to have a more noticeable effect on the tone, with some claiming that they mellow it out. Ultimately, the decision to keep or remove the plastic covers depends on personal preference, as some guitarists prioritise protection from scratches over potential tonal changes.
| Characteristics | Values |
|---|---|
| Do plastic pickup covers affect the tone? | There is no consensus on this. Some sources claim that plastic pickup covers do not affect the tone of guitars. However, others suggest that they can cause a slight difference, especially with cleans, making the tone less bright. |
| Do metal pickup covers affect the tone? | Metal pickup covers can affect the tone of a guitar, although the difference is often negligible. Metal covers can mellow out the tone a bit and cause feedback at high gain if not wax potted. |
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What You'll Learn
Plastic pickup covers can protect guitars from scratches
Plastic pickup covers are primarily used to protect guitar pickups from scratches during manufacturing, shipping, and handling. While some guitarists choose to remove them, leaving the covers on can provide an additional layer of protection for your guitar.
The plastic covers are placed on the pickups during manufacturing to safeguard them from potential damage. This protective layer remains as the guitar moves from the factory to the store and, ultimately, to the customer. It's important to note that pickups typically don't sustain significant damage during regular use, but the plastic covers provide an extra safeguard against scratches and other minor cosmetic issues.
Although some guitarists believe that plastic covers can slightly affect the tone of a guitar, particularly with clean sounds, the difference is often negligible and challenging to notice. One guitarist even noted that leaving the plastic cover on a bridge pickup for a year resulted in minimal negative feedback, indicating that plastic covers may not significantly impact a guitar's sound.
Ultimately, the decision to keep or remove the plastic pickup covers depends on personal preference. If you're concerned about potential scratches or cosmetic damage to your guitar's pickups, keeping the plastic covers in place can provide added protection. However, if you prioritize optimizing the tone of your guitar, you may consider removing the covers, especially if you notice a slight difference in sound.
It's worth mentioning that various guitar protection products are available in the market, specifically designed to preserve the finish of your guitar. These products can protect against fingernails, picks, and sweat, ensuring your guitar maintains its pristine condition. However, it's crucial to use these products properly, as incorrect usage may damage the guitar's finish.
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Metal covers can affect the magnetic field
It is understood that metal covers can affect the magnetic field, which may theoretically alter the frequency response. However, the effect is negligible and depends on the type of metal or alloy used.
Metals with magnetic properties can influence the magnetic field coupling. For instance, the metal covers on guitar pickups can slightly alter the tone produced. Some claim that metal covers on pickups can mellow out the tone a bit, and they may also cause feedback at high gain if not wax potted. This was a reason for the removal of metal covers on humbuckers in the 1960s and 1970s, as players believed that removing the covers would lead to a small increase in output.
The impact of metal on magnetic fields can vary depending on the geometry and shape of the metal object. For example, a string of steel paperclips can extend the attraction of a magnet, with each paperclip temporarily becoming a magnet itself. On the other hand, a magnet stuck to a steel washer will not stick as well to a steel surface, indicating that steel can block or redirect magnetic fields.
The type of metal also plays a role in its interaction with magnetic fields. For instance, while lead can block or stop radioactive emissions, it has little to no effect on magnetic fields due to its low permeability.
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Metal covers can cause feedback at high gain
Metal pickup covers can cause feedback at high gain if they are not wax potted. This issue can be mitigated by using a vacuum wax potting method, which must be done under complete supervision. Alternatively, a small bit of silicone can be used under the cover, and the pickup cavity can be filled with foam rubber.
Metal covers can affect the magnetic field coupling, which may theoretically alter the frequency response and reduce the voltage out of the pickup. This effect is dependent on the type of metal or alloy used. For example, plated brass pickup covers, often found on low-end guitars, can have a significant effect on the sound, whereas nickel-silver covers are much more transparent sounding.
It is worth noting that some guitarists prefer the sound produced by metal-covered pickups, as it can mellow out the tone a bit. Additionally, metal covers can protect the coils from damage during restringing.
To reduce feedback in pickups, it is important to ensure that all external components, such as screws and pole pieces, are firm and secure. It is also recommended to try different combinations of setups and guitars to diagnose the issue accurately.
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Plastic covers can make the tone less bright
The short answer is that plastic pickup covers are thought to have a negligible effect on the tone of a guitar. However, some guitarists claim that plastic covers can make the tone slightly less bright, particularly with cleans. This effect is subtle and difficult to detect, and some guitarists claim to not notice any difference in tone at all.
Plastic pickup covers are typically included with new guitars to protect the pickups from scratches during manufacturing, transport, and storage. While these covers can provide some protection, it is relatively uncommon for pickups to be scratched or damaged, especially after the guitar is packaged and boxed.
Some guitarists prefer to remove plastic pickup covers because they believe it improves the tone of their guitar, making it brighter. Others choose to leave the covers on to protect their pickups from potential scratches, or because they believe it does not affect the tone. Ultimately, the decision to keep or remove plastic pickup covers depends on personal preference and the specific circumstances of the guitarist and their instrument.
It is worth noting that the material of the pickup cover can have a more noticeable impact on the tone of a guitar. Metal covers, for example, can affect the magnetic field and cause feedback at high gain if not wax potted. Metal covers may also reduce the voltage output of the pickup, resulting in a mellower tone. However, the effect of metal covers can vary depending on the specific metal or alloy used, and the type of guitar.
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Metal covers can mellow out the tone
While the effect of plastic pickup covers on guitar tone is debated, metal covers, particularly those made of magnetic metals, can have a more noticeable impact. Metal covers can interact with the magnetic field, theoretically altering the frequency response and reducing the voltage output of the pickup. This can result in a slight mellowing of the tone, as reported by some guitarists.
The effect of metal covers on tone can depend on the specific metal or alloy used. For example, plated brass pickup covers, often found on low-end guitars, can have a noticeable impact on the sound. In contrast, higher-quality covers made of nickel-silver are considered more sonically transparent, although still not identical to an uncovered pickup.
The presence of metal covers can also influence the guitar's aesthetic appeal. Some guitarists prefer the look of uncovered pickups, while others appreciate the visual enhancement that metal covers can provide, especially on certain guitar models.
It's worth noting that the effect of metal covers on tone can be quite subtle, and some players may not perceive a significant difference. Additionally, the construction and materials of the guitar itself, as well as the playing style and settings, can also influence the overall tone.
Ultimately, the decision to use metal covers or not depends on personal preference. Some guitarists prefer the slight tonal difference that metal covers offer, while others opt for a more open and uncovered look, especially if they believe it enhances the tone or their playing experience.
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Frequently asked questions
Most sources agree that plastic pickup covers do not affect the tone of a guitar. However, some sources claim that they can affect the tone slightly, especially with cleans (making them less bright).
Metal pickup covers can affect the tone of a guitar, although the difference is negligible. Metal covers can mellow out the tone a bit and cause feedback at high gain if not wax potted.
Pickup covers protect pickups from scratches and damage.
