This is probably been addressed somewhere on the forum but I can't seem to find it. Are the Tone Controls and Audessy correction still available if the AVR is in pre-amp only mode?
This is probably been addressed somewhere on the forum but I can't seem to find it. Are the Tone Controls and Audessy correction still available if the AVR is in pre-amp only mode?
An other question about preamp mode and i want a definitive answer:
If i assign the 4700 on 11.1 setup, connect a 3 channels power amp to it(with fronts left, right, centre speakers on it), Will the centre give sound ?
If it's yes, which amp powers it, internal denon one or power amp one or both (?). Will sound quality suffer from it, worse than if powered by 4700 internal amp only ?
To reduce confusion... instead of shuts off, better to use the term disconnect.PreAMP amp assign mode shuts off ALL internal amps.
Thanks. I assume it's the same with this case:
-11.1 assignement with fronts assigned to preout
-5 channels power amp
-5.1.4 speakers.
5 speakers Will benefit from the watts of the power amp, but only L er R from the cleanliness (better Sinad, less distortion).
The others speakers are powered by the Denon. Right ?
That Will be my Last question
Strange, i read everywhere that on 11.1 assignement, with power amp connected on the back and fronts assign to preouts, it automatically deactivate Denon front left and right internal amps...
"Next, use the Center "Pre-out" RCA to the external power amp and then Fronts and Center will be powered off the external amp"
You mean that before i connect the center preout rca, L and R are powered by External amp ? After that, L C and R Will be powered by Denon amp ? Sorry, my english is poor...
If i resume, with 11.1 assignement and whatever power amp(3 channels or 5 or 7) behind, speakers connected to power amp Will be powered by the power amp and others by Denon but Will not benefit from the cleanliness of the preamp only mode ? Right ?
As far as selecting the Front Pre-out configuration in 11.1 you are correct the power rail is disconnected from the internal amp in this configuration but all other internal amps are live.
Hi again ! Finally another question
With another setup,:
5.1.4 speakers
11.1 assignement
2 power amps, one for left and right, one for centre(purifie mono Block) .
I know that Denon centre preout Will clip at 1.4 vrms(internal amplifier still connected). My centre power amp has a 2.25 vrms input.
Can i compensate voltage difference by increasing output gain in denon setup?How?Is it worth it ? Will i still lose watts to power central speaker compared to internal amplifier capacity ?
Thanks again !
Hmmm, if i understand, only denon internal amps Will clip if i push beyond 1.4 vrms output. Denon preouts will still power to the max my purifi moblock(2.25 vrms input, 257 watts 4 ohms 2 channels driven) at the expanse of Sinad.Again, the pre out doesn't clip at 1.4 Vrms (the internal power amp will be clipping at that point). Take a look of the center channel of the X3600H, that obviously has the internal power connected:
That's almost as good as the AV7705 (a so called "separate" preamp processor.
Note that the dash board of the AV7705 measurements show about 4 V but that's XLR, had Amir used RCA for that measurement, it would have been 2 V and SINAD would have been about the same, again, as the AVR-X3600H that is an AVR, therefore internal amps would be "clipping" and degrading the SINAD at pre out.
So I really wouldn't worry about your center channel, unless you will be pusing the Purifi amp to output almost 400 W average (800 W peak) into 8 Ohms and you can hear the difference between 75 dB and 95 dB SINAD (I know I can't..).
View attachment 128503
View attachment 128504
Hmmm, if i understand, only denon internal amps Will clip if i push beyond 1.4 vrms output. Denon preouts will still power to the max my purifi moblock(2.25 vrms input, 257 watts 4 ohms 2 channels driven) at the expanse of Sinad.
So why this Amirm's recommandation ? :
"As you see, peak performance with the amplifiers off is around 1.1 volts with SINAD of 101 dB which is excellent for an AVR. With the amps on, you are OK up to 1.4 volt output before it nose dives. So when selecting an external amplifier for channels beyond fronts, make sure it can output its maximum power at or below 1.4 volts (usually specified as "sensitivity")."
Was He talking about Sinad only and not power ?