Power off secondary zones and try the biamp. Are you using external amps?
In any case, a biamp using channels in the AVR (assuming it is a passive crossover speaker) sharing the same power supply is a bit pointless.
Denon X4800H bi-amped power on pop
Several months ago I got an X4800H to replace an aging X4200W.
I was very happy with it and all was well until I decided to bi-amp the main speakers.
This is using the pre-set configuration option of 5.1 (bi-amp) + zone 2. I am not using zone 2.
There was no power on pop with I was only doing 5.1 without bi-amp and without zone 2.
The pop is not loud and sometimes doesn't happen. I am guessing the pop only is happening when the amp is cold. If I shut it down and then power it on again after running for long enough to get warm/hot, it sometimes/often doesn't happen at power on power.
Please note this is pop heard coming from the main speakers not the click inside the amp.
My google-fu has not turn up anything and I am not a participant in any Denon forums.
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@deep_333 All secondary zones are power off.
I am bi-amping using the AVR since it has 9 separate amp modules. The idea is to spread the load across separate amp modules and across heat sink. I get the idea that since they share the same power supply that it may be pointless. |
Lots of possibilities, don't have any denons, don't know for sure, but.... If it is "only happening with internal biamp", goes away completely when you remove biamp, it is a DC offset issue (woofer amp channel <-> tweeter channel) exasperated through the speaker’s passive crossover. If you change the biamp channels, ie...swap the woofer and tweeter channel, the pop might sound a bit different, confirming the above. Not good for the tweeter. Stop the biamp. ( denon feature oversight...or something failed, hard to tell, not a issue with the speaker, maybe try updating the firmware or complain to Denon, they may release firmware with a fix.)
@travelinjack wrote
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Do you hear any benefit with bi-amping? If not just go back, but if there is a benefit you could just leave the Denon on as it doesn’t burn all that much power on idle and may actually be better than turning it on/off every day if that’s what you’re doing. Frankly, your speakers deserve better than a mid-fi AVR and rather than worrying about bi-amping you’d be much better served by getting a good stereo integrated amp with a HT bypass and running the front L/R pre outs from the Denon into that — you’ll get much more out of those speakers. Just my $0.02 FWIW. |
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