Question… I have a preamp and an AVR (music and movie). I want to connect both to my PS Audio M700. I plan to connect the preamp to M700 via the XLR terminals, and the preouts of the AVR to M700 via RCA. Is it safe to do so assuming I only use one set of input at any given time?
Unfortunately, that will not work unless both units have output relays that would disconnect when powered down. You are better off using your AVR pre outs for the front speakers into a line input of your preamp. If it has an HT bypass input like the GCD that’s optimum, otherwise you need to calibrate your surround processing at a volume that is normal level on your preamp.
No, this is not something you want to do. Both inputs are tied together parallel, thus if you try to connect the output of two sources to the M700 you’re effectively shorting the two units together, something you do not want to do.
This is a bad idea. Because the inputs on the M700s are tied together, this can really hurt the pre amps.
Glad that I asked. My preamp (Anthem STR) has HT bypass, but it cannot pass RCA to XLR when powered off according to the manual. Thank you all for replying. I’ve learned a great deal in this forum over the years.
as @mscardina indicated, HT Bypass is the way to accomplish this. PS Audio Stellar Gain Cell DAC (preamp) manual excerpt.
I actually have a RCA cable and XLR cable sitting next to my amps. I swap when needed. I don’t watch much TV though and the amps are easy to get to. Its minor inconvenience. Maybe some day I’ll try HT bypass but my pre only partially supports it so for now I swap cables.
Something like this might be useful…
According the the STP Preamp Manual, when it is in standby it will activate HT Bypass. If you don’t have balanced outputs from your AVR, simply use an RCA to XLR cable or adapter which will allow you to run balanced out from the STR to the M700.
Nobsound makes some good stuff for sure. Thanks for the link!