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I have a Final Sound s-220 sub and a couple of days ago out of the blue, it began a whump, whump, whumping sound. It is constantand only stops when I shut the speaker off. The sound (whump) continues even if the speaker is not plugged into the amp. Any ideas? The fuse looks fine if that matters. Thanks for your help.

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  • Larry Harris Jul 01, 2013

    My Final Sound S220 subwoofer started making the same sound, until it warms up. Now it has a constant hum after the whump stops. No problems until recently and the plate amplifier has a lot of features, that I want to keep. It is a great suppliment to Magnepan, Spica TC50 or Reference 3A, to extend the bass range. Built-in line level high pass can be inserted between preamp and power amp. Any recommendations on how to get it repaired?



6 Suggested Answers

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017


SOURCE: Denon reciever avr-487

If your tv is putting out mono you will only get the center and sub speakers. This can be because the tv is only mono, or the output is set to mono in a menu of the tv. If you have cable or sat run the digital audio out to you receiver; it usually sound better that way anyhow. Set your receiver to Dolby mode for best sound.

Posted on Aug 27, 2007

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check that wire and fuse again and try to reset and try

Posted on Dec 11, 2007

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SOURCE: Technics SA-DA10 Receiver-no sound

Most of these problems are rooted in a failed power amp module.
I'm working on an older technics unit but with the same troubles.

Posted on Mar 12, 2008

  • 1 Answer

SOURCE: Onkyo 805 sub hook up problem

I made the same mistake when i hooked my REL sub up to the back of the 805.

The problem is there are 2 connectors on the back of the amp that are labeled as sub out. Look very closely, you will see that there are 2 grouped RCA outs. The RCA out group you are looking for differentiated by groups of "little white dots" all the way to the far right on the back of the amp. Hope this helps.

Posted on Jun 09, 2008

  • 2 Answers

SOURCE: No Sound

Called Onkyo and here is the solution they gave me.

1. Turn on unit.

2. Press and hold VIDEO 1 button.

3. While pressing VIDEO 1, press Speaker A button.

4. You should see "CLEAR" on the display for a second and it will go on stand-by mode.
5. Turn on the unit and check if sound is back.

Hope this helps

Posted on Jul 07, 2008

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