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-   -   Correct signal phase integrity (http://www.diyaudio.com/forums/pass-labs/6146-correct-signal-phase-integrity.html)

kirc 19th September 2002 12:29 PM

Correct signal phase integrity
 
2 Attachment(s)
I have one question.

My opinion is that Bride of Zen invert the phase of the signal, but Penultimate Zen V4 does not. To adjust the absolute phase I reverse the cables on Zen V4 output. Is this correct ?

best regards,
Leon

mrfeedback 19th September 2002 04:37 PM

Acoustic Polarity, Not Equipment Polarity
 
Yes, except that recorded polarity changes from record to record, and track to track.
You need to be able to invert system polarity at will.

Eric.

stefanobilliani 19th September 2002 05:55 PM

I prefer to listen to the records as they are recorded;
with the absolute phase right .

I think also that the absolute phase may become a factor of personal taste.
:eek:

skaara 19th September 2002 06:02 PM

Are there hearable differences?

stefanobilliani 19th September 2002 06:08 PM

At least at my opinion the answer is yes.
But don't know how to explain it .:magnet:

mrfeedback 19th September 2002 06:19 PM

It Is Loud And Clear.
 
Pay attention to polarised sources like drums and vocals.
Vocals sound like someone speaking towards you, or their back facing you according to polarity.
You need flat phase characteristic speakers to hear it properly.
Warning - Once you understand and can hear the difference you can't go back.

Eric.

stefanobilliani 19th September 2002 06:23 PM

I agree . Completely .:) :) :)

pjkunz 19th September 2002 06:36 PM

I think he's just asking if the Z4 has an inverted output. It does as far as I can tell. The buffer as implemented is not inverting, and the gain stage still is. so BOZ+ZV4 should = correct phasing. I also modelled the circuit just to double check.

-Regards

kirc 19th September 2002 06:54 PM

I also prefer to listen to the records as they are recorded.

Yes, I made a big mistake while I wrote the post.

BOZ invert phase and Zen V4 also invert phase. The input buffer does not invert, but output stage invert. So the absolute phase is correct. The Zen V4 shematic show the output on output capacitor as - and GND as +. Is this becouse ZEN invert phase ? (my opinion is that this is this). So combination ZEN V4 and BOZ does not invert the absolute phase, so output on output capacitor is + and GND is - to speaker.

best regards,
Leon


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