Volume Pot Upgraqde

Goldpoint?

A stepped attenuator would be a nice choice. If it won't fit, look at a TKD pot.

I've got a 50k Ohm stereo Noble(AP25), that I'm not using. Can a 1 1/8" H X 1 1/8" W X 1 1/4" D pot fit your application? FREE, to a good home.

So, I think I have a solution.

I am going to fabricate a sub chassis that will accommodate a stepped attenuater.

The "sub frame" will also allow me to add a selector switch and more inputs as well since the baby only has a single stereo pair input.

I am also upgrading the coupling capacitors to Mundorf Silver/Gold Oil caps.

I will post up some pics when it is finished (can we even do that here? I'm new)

Should you use 'break before make' switches in a selector application?
How about a nice bank of relays and 'soft touch' momentary contact switches?

Good point! I will work on putting that together...

How about an external switch box like the Goldpoint SW4 ($352) so you don't have to drill into the preamp.

Wish that I had these kind of options when I did a project like this years ago.

Instead of coupling capacitors, consider a Jensen or Lundahl 1:1 line level output transformer.

Just looked up that Bent Audio has 50K attenuator modules and the small PRM-1 module that takes the place of the volume knob, if you don't mind buttons. Nice thing is that it adds remote. Also has power supply options.

Consider a shunt volume control with a 50K TX2575 series resistor and a Silonex variable light-dependent resistor in the shunt position. This is explicated in the Lightspeed DIYaudio thread. This will surpass a convention series attentuator.