[sdiy] Guitar levels (slightly OT)

Mike Beauchamp list at mikebeauchamp.com
Tue Apr 3 05:05:29 CEST 2018


> Quick question: I need to output a signal from a Eurorack system to a 
> guitar amp. Are there amps that have line level inputs? I seem to recall 
> guitars with active electronics put out line level. True?

Hi Tim,

Most guitars I see are around 250mVpp for standard-wound single coil 
pickup guitars. Humbuckers are like 500mVpp-1Vpp and output from a Fuzz 
or boost pedal can get up to 2-4Vpp!

You just need to attenuate the signal from your eurorack. Send the 
output through an attentuator module before heading out to the amp. 
Another easy way might be to put 2 resistors as a voltage divider inside 
the 1/4" plug that's destined for the guitar amp.

Mike





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