majorcHi, when you said in your first post affordable. I thought cheap but good. The Schiits volume control inside is every bit as good as other potentiometer based passives being presented here that are far more expensive. That’s what makes them a great buy, with a return policy.
George I didn't understand your post re what are on ebay for under $100. And how does the sound quality of the Schitt compare to the others
I also manufacture the LDR based passive the Lightspeed Attenuator which is maybe too expensive for you, and only one input. Second from the top in this link.
https://forum.audiogon.com/topics/amps-preamps?tab=alltime
And this is just one of the ebay line level rca switch box.
http://www.ebay.com.au/itm/3-PORT-WAY-AUDIO-2-RCA-SWITCH-BOX-IN-OUT-MANUAL-SELECTOR-SPLITTER-/370853108342?hash=item5658915a76:g:e3kAAMXQb29R3-dX
Cheers George