Guitar Pedal & Amp Effects: Magnetic & Inductors

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SUMMARY

The discussion centers on the impact of electric and magnetic fields on guitar pedals and amplifiers when placed in proximity. Participants confirm that while electric fields can affect these devices, the shielding in cables, pedals, and amps generally mitigates this interference. Additionally, coiling the guitar cable can create an inductive effect, but the low voltages and currents involved typically do not pose significant issues. The conversation highlights the importance of using quality cables with proper shielding to avoid potential problems.

PREREQUISITES
  • Understanding of electromagnetic fields and their effects on electronic devices
  • Familiarity with guitar signal flow and components
  • Knowledge of cable shielding techniques in audio equipment
  • Basic concepts of inductance and its implications in audio cables
NEXT STEPS
  • Research the principles of electromagnetic interference (EMI) in audio equipment
  • Learn about different types of cable shielding and their effectiveness
  • Explore the effects of inductance in audio cables and how to minimize it
  • Investigate feedback mechanisms in electric guitars and their impact on sound quality
USEFUL FOR

Guitarists, audio engineers, and anyone interested in optimizing the performance of guitar pedals and amplifiers through effective cable management and shielding techniques.

fallen186
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I have a guitar with a pedal and amp. If i have the stuff close together (including the wires) won't the electric/magnetic fields have an affect on these devices?

Also, if i have the wire that plugs into my guitar coiled, won't that create an inductor type of effect?
 
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Yes to both questions. However, I would think that the voltages and currents are pretty low (I've never actually checked, even though I play bass :/) and cables, pedals, and amps are generally shielded against EMF. If you have an old cable handy, cut it open an strip off the top rubber (or fabric) bit. You should see shielding around the inside. If not, it's probably a really really cheap cable >.>
 
Wetmelon is correct about shielding. A larger effect comes from sound feeding back on the guitars strings and cause them to resonate; which is desirable if you're Pink Floyd. :wink:
 

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