Denon x4000 turns off sometimes while playing high bass audio

[john20182050]

Denon x4000 turns off sometimes while playing high bass audio even within 30 mins. Could something be wrong with my config/settings in the receiver?

My current setup is in the living room is
1. KEF R500 Front
2. JBL 520c
3. JBL 530 back speakers
4. Denon x4000 - I want to upgrade this with the better receiver and use this receiver in another workout room in the basement
5. HSU VTF-3 MK5 HP Powered

 

[everettT]

What are your speakers? Are using a sub?

 

[lovinthehd]

Hard to know since you don't mention what your speakers are, what settings....sounds like the avr going into (self) protection mode.

 

[everettT]

How much clearance above the unit? Next question....

 

[john20182050]

What are your speakers? Are using a sub?

okay. Updated the original post with speakers details

 

[lovinthehd]

A simple cooling fan can be very helpful with a warm running avr, too (or if placed without optimal ventilation).

 

[PENG]

Denon x4000 turns off sometimes while playing high bass audio even within 30 mins. Could something be wrong with my config/settings in the receiver?

My current setup is in the living room is
1. KEF R500 Front
2. JBL 520c
3. JBL 530 back speakers
4. Denon x4000 - I want to upgrade this with the better receiver and use this receiver in another workout room in the basement
5. HSU VTF-3 MK5 HP Powered

My guess is that the X4000 is struggling with the R500 that are basically 4 ohm speakers. Still, it should have no trouble powering them for people in a small to medium size room sitting no further than 10-12 ft listening to reference level or below, but not beyond such limits.

In order to give it an educated guess, more information would help, such as:

- Did you run Audyssey?
- How loud did you crank it? What's the volume position when that happened, like -20, -10, 0?
- Has it always behave like this, or just all of a sudden?
- How warm was it at the warmest area on the top of the chassis? Some temperature readings would be great.

 

[everettT]

What is your sub crossover set at?

 

[john20182050]

My guess is that the X4000 is struggling with the R500 that are basically 4 ohm speakers. Still, it should have no trouble powering them for people in a small to medium size room sitting no further than 10-12 ft listening to reference level or below, but not beyond such limits.

In order to give it an educated guess, more information would help, such as:

- Did you run Audyssey?
- How loud did you crank it? What's the volume position when that happened, like -20, -10, 0?
- Has it always behave like this, or just all of a sudden?
- How warm was it at the warmest area on the top of the chassis? Some temperature readings would be great.

Yes, I did use Audyssey setup. But after I changed a little manually. Crossover I set to 60hz R500 and rest of the speakers at 80hz. LPF 110hz. All speakers size to small. I'll still not sure whether it happens all of sudden or after using for long time and due to heat. But mostly it happens whenever I test some sub test audio from youtube when I play it more than 20/30 mins

 

[everettT]

Not sure if YouTube is the best way to test equipment. raising the crossover to 100 and the lpf to 120 might help a little.

 

[PENG]

Yes, I did use Audyssey setup. But after I changed a little manually. Crossover I set to 60hz R500 and rest of the speakers at 80hz. LPF 110hz. All speakers size to small. I'll still not sure whether it happens all of sudden or after using for long time and due to heat. But mostly it happens whenever I test some sub test audio from youtube when I play it more than 20/30 mins

I know it does not seem to make sense but after spending many hours experimenting, and using REW/Umik-1 mic to plot graphs to confirm the results, I found crossover of 60 Hz for my bass capable tower mains is not good at all.

Different room would yield different results, but you should try 80 or 90 Hz for the left, center and right speakers. There is a good chance you will have better bass response overall crossover the front speakers at 80 or 90 Hz.

My educated guess is that XT32 is not capable of integrated the lower frequencies produced by the capable speakers and the subwoofers in terms of resolving the negative effects from the interaction between them, for frequencies below 80 Hz. At least that seems to be the case in my HT room and the two channel room. Again, it may be different in your room, with your speakers and subwoofer(s),but there is no harm trying.

Regardless, the R500 has impedance in the lower range, so crossover higher should also help the X4000 (just slightly) coping with the demand you put on it when playing those "sub test audio".

 

[KenM10759]

If you're at 95dB much of the time you really need power amps. And hearing protection.

 

[everettT]

The NRCs measurement indicates the need for a higher crossover also.

 

[KenM10759]

I have mine crossed-over at 60hz as well, with my NAD T758. Works better for me than higher ones that I've tried, including 70hz, 80hz, and 90hz. My R100 surrounds are at 90hz, my R200 center is at 70hz. That's my ears, no one else's.

Keep in mind that mine have both ports fully open and there's 17" of space from the back of them to the wall.

 

[john20182050]

If you're at 95dB much of the time you really need power amps. And hearing protection.

No all the time. I listen to about 90% volume level may be for 30 mins only. Most of the time, volume is at 70%

 

[john20182050]

I know it does not seem to make sense but after spending many hours experimenting, and using REW/Umik-1 mic to plot graphs to confirm the results, I found crossover of 60 Hz for my bass capable tower mains is not good at all.

Different room would yield different results, but you should try 80 or 90 Hz for the left, center and right speakers. There is a good chance you will have better bass response overall crossover the front speakers at 80 or 90 Hz.

My educated guess is that XT32 is not capable of integrated the lower frequencies produced by the capable speakers and the subwoofers in terms of resolving the negative effects from the interaction between them, for frequencies below 80 Hz. At least that seems to be the case in my HT room and the two channel room. Again, it may be different in your room, with your speakers and subwoofer(s),but there is no harm trying.

Regardless, the R500 has impedance in the lower range, so crossover higher should also help the X4000 (just slightly) coping with the demand you put on it when playing those "sub test audio".

Okay, let me try 80hz and see whether the problem go away

 

[lovinthehd]

No all the time. I listen to about 90% volume level may be for 30 mins only. Most of the time, volume is at 70%

Did you calibrate your avr with Audyssey? What are the actual readings of the volume scale at what you call 90% and 70% ? The volume scales are expressed in dB, so using percentages don't really tell us much.

 

[PENG]

Did you calibrate your avr with Audyssey? What are the actual readings of the volume scale at what you call 90% and 70% ? The volume scales are expressed in dB, so using percentages don't really tell us much.

I was wondering about the same but I bet selected the absolute scale and meant "70", not 70%. If true, you and I both know "70" in absolute would read about "-10" in relative. That's quite loud, probably loud enough to justify a shutdown after playing bass notes for 30 minute on the 4-6 ohm R500.

 

[PENG]

Okay, let me try 80hz and see whether the problem go away

It may not make enough of a difference but surely no harm trying. You really should back off the volume a little. The volume should read 0-98 or - 79.5 to +18. So assuming you had it at 70 when it shutdown, just by turn it down to say 67, in addition to setting crossover to 80 Hz, may be enough to make the problem go away.

 

[everettT]

It may not make enough of a difference but surely no harm trying. You really should back off the volume a little. The volume should read 0-98 or - 79.5 to +18. So assuming you had it at 70 when it shutdown, just by turn it down to say 67, in addition to setting crossover to 80 Hz, may be enough to make the problem go away.

And I go higher than 80, if it were me