2. amps-preamps
  3. 1382387937

Reverse Phase Preamp with HT Bypass

I am considering purchase of reverse/inverted phase preamp. So, here is the situation as I understand it:

- In order to have the preamp operate properly, the phasing of my speakers need to be reversed. They are bi-wired, so the wiring of the positive (red) versus negative (black) speaker wire needs to be reversed coming from the amp on both posts.

- That means instead of red (positive) speaker wire to red (positive) post, it would now be red (positive) speaker wire to black (negative) post ... is that correct?

Issue: The way my system is set up now with pre/pro (AVR with HT and 2-channel capabilities) going into speakers "in phase" ... everything seems to be working properly. If I reverse the phase - in order to accommodate the new preamp reverse phasing - then what happens when control is returned to the AVR pre/pro via HT bypass? At that point the AVR pre/pro output load is "in phase" going into "reverse phase" speakers in the FL/FR channels of a 5.1 configuration. Will that create a phasing issue? If so, then what is a possible workaround? Please help me understand.
strateahed

Showing 1 response by atmasphere

atmasphere's avatar
atmasphere
12,116 posts
 
Phase makes a difference if the recording uses a minimal mic recording technique- either 2 or 3 mics (if the third mic is a center channel).

If more than that are used, valuable phasing information becomes jumbled and the effects of absolute phase is nearly impossible to make out.

Other posters are correct- 50% of all recordings are out-of-phase. That is why a switch on the preamp is nice to have.
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