Joyo phase and low volume

[nashrik]

Hi, I've buy a joyo phase, and when is active this pedal 'eat' signal, I've a low volume output

It's possible to make a modify for this problem?
sorry for my terrible english!

[pinkjimiphoton]

hey welcome to the forum dude!
can ya post a picture of the thing or which model?

[nashrik]

[nashrik]

It's a clone of Mxr phase 90

[pinkjimiphoton]

did you open it up yet? surface mount, or thru hole?
if its a phase 90 it should be unity gain, most of 'em are louder. if you just got it, you may wanna send it back or exchange it.

if you don't want to return/exchange, if its thru hole parts compare what you have to a phase 90 schematic.

adding a feedback resistor will make it louder, but the tone will change.

look for about a 150k resistor just before the output to ground. i would imagine making this resistor around 470k will likely raise the output volume a bit. you may have to experiment with values. that resistor is bleeding some signal to ground, and making it larger will result in less of that.

a lot of times i see folks suggest messing with the input stage, but in my experience it often adds more distortion. make sure its the resistor to ground after the output cap, as there are several 150k resistors in the circuit.

check this oUt for a breakdown of what does what

http://www.electrosmash.com/mxr-phase90

also see the technology of phasers on http://geofex.com

good luck man