Passive Preamp - What makes it work?


I want to try a passive preamp, such as Creek's OBH 12, as an inexpensive pre to replace my current Denon AVR1700. I've read a bunch on here that output levels from the CD and input impedance of the amp are crucial factors. What should I be looking for to see if this is a good idea for my system? Is the goal to make the impedances match, or should one be higher than the other? Also, are there any passive pre's with a home theater passthru?

My system:
Joseph Audio RM22si signatures (86 db sensitivity)
McIntosh MC-2105 amp (input impedance 200k)
Music Hall CD25

Thanks
matt8268

Showing 1 response by fly_fish_nz

Theresa,
I just copied the Q&A section from Placette Audio's website in an ad I posted for a passive (placetteaudio.com). It addresses your question and you may find it interesting. I think the Q&A section was listed on the bottom of the list on the left hand side of their home page.

C.