basic passive preamp

These are superb low cost passive pre amps-

http://www.tisburyaudio.co.uk

Passives don't work nearly as well as active....If you insist, build one yourself.....all you need is a volume control, some wire, and box to put it in. 

"Passives don't work nearly as well as active..."


What...??? Music First Audio's Baby Reference blows many actives out the water.

majorc
 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 

Hi, 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.

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

I concur with the Mccormack Micro Line Drive preamp, own one and it is spectacular. The passive side provides dynamics like an active pre would deliver. The active side provides up to 12 db of gain and it is very good sounding as well. Steve's amps are designed to be used with passive preamps. I still own The Mccormack DNA-1 Rev B after all these years.