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Denon AVR 5803

The subwoofer port on the back of my receiver doesn't seem to be working. I know the sub works. I don't think I accidentally disabled it. If I did, I don't know where to re-enable it.

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Re: Denon AVR 5803

I have similar problems with my sub connection on my 2805. My sub activates now and then when very low frequencies are being played, but only when the volume is about -35db or louder. The surround EQ might have been changed on your receiver. I have a feeling that the 2805 has a weak connection to the sub out jack so another possibility is that you have a shorted-out wire. Couple of suggestions: check to make sure "cinema EQ" is not on, as it compresses the frequencies to the upper and lower dynamic ranges, which might mean LFEs are not being played. Also check your crossover frequency and set it to somewhere higher (200Hz is a relatively high crossover frequency that would be good with very small main speakers, while 80 hz is a low crossover point that would just add a little extra oomph to gigantic speakers capable of playing very low bass).

Posted on Apr 10, 2008

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Re: Denon AVR 5803

If there is "large/small speaker" settings on your receiver, maybe you set speakers on Large. Some receivers, when set speakers to "large", won't redirect signal on subwoofer.

Posted on Oct 03, 2007

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I have a denon avr 3808ci and all of a suden im not getting sound frome sub.?

I'm having the same problem. Changed the wire from LFE to LFE input to the sub... I have a velodyne which has always worked great. Connected the sub with the original wire to my sony amp and it works great so it's the output on the amp. Any suggestions

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Is EVERYTHING in this scenario new (unknown functionality)?

You don't say what the result of the tone check was, nor do you identify the sub.

If your unnamed sub uses Line Level inputs just run one of the AVR's Tape Out's to it to prove the sub works. IT WILL BE LOUD since no volume control is in line with generic Line Outs. If it uses speaker level input, just run a speaker pair to it from the front channel. THEN you will know in which direction to proceed.

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Hi, I have a denon AVR 889 about 4 years old and the subwoofer suddenly stopped working,how can i check if its the amp or the sub thats the problem?

A Denon AVR 889 is not a sub so we don't know anything about the sub in question.

Maybe the existence of the sub is no longer set in the AVR. Look at the speaker definitions first before going to wild.

Try another cable to the sub.

OR, run the sub's signal supply cable to one of the Tape Outs on the receiver and tune in something on FM. If that works a) it will be loud, and b) go back to the SUB settings on the AVR.

Crack the sub open and access the terminals on the speaker itself. Disconnect them from internal components and run one of your amp channels directly to it. If it works, the amp or signal path are dead. If it doesn't work, it's a dead driver.

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Cant get my sub to work on my denon avr2808 and dont think it ever has it doesnt even work on the test signal

There are four possibilities that the subwoofer doesn't gives any aoutput. They are:

• Subwoofer's power not turned


•The "Subwoofer" setting at

"Speaker configuration" is set to


•The subwoofer is not properly


•The subwoofer's volume is
turned off.
Go to its manual setupscreen, come to speaker setup, speaker confuguration, come towards Sub Woofer, select "Yes" and press OK.

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My subwoofer is connected correctly (test mode it works fine). The Denon 589 receiver, however, when everything is set up and ready to go, doesnt seem to send any output to it, so there is no base sound. ...

What's the make and model of the subwoofer? It sounds like it's a passive (unpowered) speaker.

See page 9

I seriously doubt your test mode worked fine on the subwoofer level adjustmnent.

Get a powered (active) sub.

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My Denon AVR 589 does not seem to send any signal to my sub, I have try another working sub and it does the same. I just notice this week that my sub was not working. I have check on the amp setting and...

Is there a switch on the back of the receiver that will switch the sub signal from digital to analog? And the same switch might be on the subwoofer itself.

Hope that helps if not just reply back.

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if the subwoofer is on in the reciecer settings then maybe the amp is not getting the signal or the amp is not amplifying
try unplugging the output of the sub then turn off the reciever for a min. then turn it on wait , then plug the sub in
if that don't work then test the sub output with a stereo that has a audio input
also test the subwoofer with a audio output to it( only a positive and a negitive wire for sub)

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