2. amps-preamps
  3. 1143621906

Phase Inversion in Preamplifer?

I just bought a used Audible Illusions 2D here on a'gon. This will be my first venture into separates. I've learned that AI preamps have inverted phase, so it's recommended that I switch +/- polarities at the speaker-amp hook-up. OK. But according to AI literature the phono stage of the preamp is NOT inverted, only the output stage is. So, since I listen to both vinyl and CDs, what do I do? Should I reverse speaker wire polarity or not?

Incidentally, the amp I'll be using is an ATI 1502 -- still haven't been able to find out if it inverts polarity or not. But based on my (limited) research thus far it appears that phase inversion is a design of preamplifiers more than power amplifiers. Is that right?

Thanks,
Rich
winegasman

Showing 1 response by david_berry

david_berry
211 posts
 
It does appear that the phase inversion issue happens more in preamps than in amps.
I do not believe that it make a great difference at all. My Joule Electra LA 150 preamp inverts phase as well and in my research it really does not matter and is not something to keep you up at night.
Also keep in mind that even within the same CD, the songs can/do flip/flop the phase.
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