Conrad Johnson PV10AL Tube & Polarity Questions?


I don't have the owners manual for mine but I thought I read somewhere that the CJ's invert polarity? Is this true because it sure sounds that way in my system. I also would like to experiment with changing some tubes around. I listen to Rock & Roll. I have a pair of Tylo Monitors, Mc Cormack DNA-1, Philips 963SA with DH labs cable. I have never swapped tubes & have no idea what should be in there or is what in there at the moment. Where do I begin?
fishwater
"ALL cj pre amps invert polarity. It's a given."

Wow--THAT's such a misstatement I'd considered it a lie.

Not all c-j preamps invert signal polarity. Those that have an odd number of gain stages do indeed invert polarity, as do all preamps (or poweramps, for that matter) of any brand that have an odd number of gain stages*.

John, generally, the easiest way to invert the signal polarity of your system is to reverse the speaker positive and negative leads at EITHER the amp(s) or the speakers but not at both locations.

*--a cathode follower is not a gain stage and does NOT invert signal polarity.
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While I am impressed with your knowledge, I insist ALL (atleast the dozen or so models I've USED) cj pre amps invert polarity. I HAVE OWNED THE PV-10 and assure / confirm / can bet it inverts!!
I agree the best way is to swap speaker cables. However, in a digital-only system, you can simply invert polarity at the CD player / DAC stage - if so equipped.
Enjoy !
M, during the last decade or so, c-j has simplified its preamp designs and now uses only one gain stage in the line stages of its preamps. Of course, with an odd number of gain stages, namely one, these do indeed invert signal polarity. I've owned 3 c-j preamps, 2 somewhat old (a PV5 and a Premier 3) and one newer one, a PV10AL without balance control. The first 2 have 4 gain stages (including the fono section), the latter just 1.

My strong language was due to your use of 100%-universal, all-encompassing language when it's simply not correct. For instance, your initial statement AND restatement are as incorrect as saying that all woman drivers are poor drivers. It simply isn't so.

This hobby is difficult enough for some of us without incorrect statements such as yours. Pls understand--I'm not trying to start an arguement here, I'm merely trying to assist in communicating clearly. Perhaps in the future you might say something like virtually all modern c-j preamps invert polarity.

But of course you may write anything you like, just as I can.
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:-)
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I am about to receive a CJ Premier 2 that is coming without a manual. Does it invert polarity?