Denon AVR-X2700H no Surround Issue?

ssmacc · 15 Oct 2021 at 09:19

Hello All,

But of a strange one, but I've noticed the last couple of days that my Denon 2700H was not outputting to the rear speakers (I've got a 5.1.2 set up).

Netflix (from Nvidia Shield eARC)
I first noticed that Netflix Dolby Surround was only coming out as stereo despite the AMP displaying DD, I went into the settings, changed nothing and then surround worked...

Sky Q (direct into the AMP)
Same thing last night only with SkyQ and ATMOS, nothing from the surround speakers, went in and out of the settings a couple of times this time and then ATMOS worked...

Plex (from Nvidia Shield eARC)
Nvidia Shield, same issue...

Just wondering if anyone has come across this before, could it be a setting or a sign of failure?

I'll do a factory re-set over the weekend but thought I'd canvas opinions.

OLED65B9PLA
Denon AVR-X2700H
BK XLS200-FF
Q Acoustic 3020i Fronts
Q Acoustic 3010i Rears
Q Acoustic 3090i Centre
MINX Mini 22 Highs

ssmacc · 15 Oct 2021 at 11:36

melmac said:
It does sound like there is a problem with the receiver. If it works fine when you turn if first then losses surround sound after a while, it might be overheating. Denon's get very hot, especially in small cabinets. So it might be worth putting a fan in front of it and see does that solve the problem.

It's unlikely to be a settings problem if it comes and goes like that. And it's unlikely to be a cable connection problem, might be worth checking them again though.

Cheers for the response, I actually have a couple of PC fans next to me I'm about to put on top of the AMP as when I was looking into it last night I did notice it was hot to touch (although not in a cabinet)

Do you know it overheating would cause this, or would it just result in random "stuff" happening...hopefully the extra cooling will fix but am a bit concerned as it's a tricky one to explain / prove for warranty point of view...

ssmacc · 15 Oct 2021 at 12:07

melmac said:
Try the fans, there is nothing to lose. But, if it's not in a cabinet then it shouldn't be overheating, unless your house is like furnace

Could it cause the issue you are having? Sure it could. Overheating can cause lots of problems.

If the fans solve the problem, then you have to think about what you are going to do. It shouldn't be overheating if it's in the open. It might get hot, but, it shouldn't be hot enough to cause issues. Which would mean that there is something wrong, something that might get worse. So, I would consider returning it.

If the fans don't solve the problem, try the factory reset, but, I am not sure that will do anything. If it does brilliant!! If it doesn't, I think you should return it.

Cheers,

House is far from a furnace! I'll whack on the fans and test over the weekend, just unsure how to word the issue if it continues, I bought from Richer Sounds who I've always found great with issues so might email and see what they say...although I suspect they will think its "user error / setting"...

ssmacc · 15 Oct 2021 at 13:24

Thanks all (again), just "fitted" the fans and had a quick check, all seems well.

I did the test tone last night and all speakers are fine.

I first noticed the issue watching Netflix, paused the show, opened the AMP settings continued the show and the sound was vastly improved, 5.1 where it sounded mono (almost all centre) beforehand (same source, same programme). Hopefully its some kind of anomaly that disappears.

Will watch over the weekend and keep an ear out!

ssmacc · 25 Oct 2021 at 13:54

melmac said:
Just curious as to how you got on over the weekend?

Hello All,

Sorry for the late response, fans are on top of the AMP now and doing a really good job, I didn't realise the AMP has air vents on the sides and these are very near to the sides of the cabinet it's in (almost no gap!). The top of the AMP was hot to touch..AMP is now cool.

I performed a factory reset as within the menu system (see vid below) I noticed the "Subwoofer Level Adjustment" option was flickering, as in one second the menu was selectable, the next it wasn't...factory reset fixed this and the issue seems to have gone...I suspect the AMPs software somehow got corrupted(?)...

Seems ok now and cool (nothing funny going on in the menus)...

https://www.youtube.com/watch?v=e0Fu8cZQvRY