change Pass labs Amp from 30dB to 26dB

[Zen Mod]

Putting the gain jumper on shorts out a series resistor in the signal path, it does not actually change the gain of the amp, only the amount of signal the amp sees.

Cyclotronguy

with jumpers jumperinging , it's either 10K or 14K75 as input resistance, included in FB net with 332K

so either 26 or 30db gain of amp

 

[slowikpl]

So 26dB = jumperinging 🙂 the pins , or leave the jumpers unconnected?

And no sound degradation on setting change?

 

[Zen Mod]

no jumper (or set to one pin as parking position) is for 26db

jumper closed , 30db

edit: no sound degradation

 

[slowikpl]

Thanks Zen! So I leave those alone.