Can anyone comment on the Audio Mirror Pp1 Preamp?

If you are using MM you might need 12at7's for more gain, if MC then get 12Au7's they will have plenty of Gain for the output if using a .4 mV or higher MC cart.. MULLARDS NOS are killer in this pre 12au7's.. Super smooth and warm, with tons of bass slam.. For the Phono 12ax7's Get Groove Tube Mullard remakes, Best phono tube made right now. See my system profile for modified Pp1.. The caps cost about as much as the preamp!

Phd, yeah basically it was an independent job and a fairly Tuff job with such big caps… As for the 12Au7’s, if Mullards they are the most TUBE sounding tube I have heard, I have the 12at7’s which are a bit more forward sounding, but found the extra power of the 12at7’s necessary if running the MM stage from the Pp1.. If using MC the 12 aU7’s are super tube sounding(well mullards are)but would not suggest a cartridge much less than .4 mV, any lower you might need to go with aT7’s like the MM. The Stock AU7’s JJ tesla’s are okay too, but not super impressive. 12At7’s have more Punchy mid-bass sound, Au7’s have a more rumbling and room filling sound in the bass and are of course reduced power making the midrange sweeter and not as intense sounding as the 12at7’s. This will vary I am sure.