Hey!

I want to make a (second) Opus, and also have a retro RIAA, and then have them both go through some kind of selector switch, and then have (I think) a Joshua as a volume control.

So I was going to order;

Opus DAC + USB Receiver Combo
Retro "HI-Z" Complete Kit
Joshua Tree Balanced Complete Kit (Controller + Relay Driver Board + 2 Relay Boards + Parts)

1. The Opus kit has an LCDPS, but the RIAA stage needs an LCBPS, so this is also something I need to add separately? Or can the Opus be driven by the LCBPS as well?

2. and the Joshua tree needs a 7-24 VAC PS, is there any that can be ordered here?

3. What kind of selector switch is recommended for switching between the RIAA and the OPUS?

Thanks!

Tomas