Question about Jamo SUB 6510 Subwoofer

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Subwoofer no receiving power or signal

The light on the subwoofer comes on but when i connect it i get no sound to the sub. I own two of these and only have trouble with one. I know its hooked up correctly because i put the working one in its place. I also swapped out the fuse from the working one and that didn't work either. I adjusted all the knobs on the back. I also took out the sub woofer and put it in the working box and it played just fine. So basically narrowed it down to a hardware issue on the amp. how can i have this fixed?

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  • Master
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Take it to a real technician. Sounds like you've proven the internal amp is shot.

Posted on May 12, 2010

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Posted on Jan 02, 2017

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1 Answer

Why does my MCS sub 10 not turn on?


Is that the right part number, MCS 10, and not MCS100?

The MCS systems use a basic sub which is matched to the satellites. There's very few controls other than level on the MCS100. So as long as the power light is illuminated the there's very little other than the volume control that could be set wrong on the sub. So what it comes down to is either

  1. a blown fuse (no power at all at the sub);
  2. a broken input (#1 cable, #2 sub input socket, #3 blown sub plate amp);
  3. incorrect connection at the receiver end or the wrong settings

As a quick test, unplug the sub cab from the amplifier/receiver end. Switch on the sub and turn the volume down all the way. Briefly put your finger across to short the RCA/phono tip and ring. The sub should make a buzzing sound. You now know that the sub is working and the cable appears to be okay

Switch off the sub and reconnect the phono/RCA to the sub out socket on the receiver. You now know it is connected correctly.

Go in to the receiver's menu and check the speaker settings. Is subwoofer present? Yes/No

Are the satellites all set to Small? (they should be with this system)

Are you playing a 5.1 source in DD or DTS to ensure that the sub gets a signal? Play a BD or DVD.

On the speaker balances, is the sub channel set to 0dB?

As long as all the above is set as listed, then the only things stopping the sub working would then be insufficient volume at the sub's Vol control (so increase it), or an intermittent cable connection (wiggle the cable), or a broken subwoofer out signal at the receiver.

Aug 06, 2014 | Boston Acoustics Audio Players & Recorders

1 Answer

I have a Jensen KS212 and I'm connecting it to a home theatre receiver direct to see if it works but nothing comes out of it. Does this mean the sub is not working or there's not enough power from...


Hi, welcome to FixYa..

Your subwoofer requires a seperate amplifier that has low pass filter in the pre out system, which means it will allow all low frequency signals from the input section of the amplifier/ crossover. Your receiver has combined signals of high, mid and midbass signals that will not be able to drive your subwoofer. That is the main reason why some receivers has "Subwoofer Out" to allow you to use "Active Subwoofer systems" (also known has self powered or has a built in amplifier w/ subwoofer)
For you to use your Subwoofer, it must have a seperate amplifier, connect it to Sub out of your receiver and from there you can hear the difference. Hope this helps.

Jul 13, 2011 | Jensen KS-212 Car Subwoofer

1 Answer

Hi ive got a b&w as2 subwoofer but theres no sound? the power light works but my denon recievers not picking up the sub is there a fuse in the sub which may have blown ive tried all the settings on...


Are you running this subwoofer via an LFE (RCA line level) connection, or via high level (speaker lines in and out of the subwoofer)? There may be different ways to hook up this unit and it would be helpful to know how you have the unit connected. Thanks!

May 04, 2011 | B&W Audio Players & Recorders

1 Answer

Im having trouble with connections from kef psw 1000 sub to onkyo tx sr506 amp. sub is making a bit of a humming noise but not getting any proper sound through. dont know what im doing wrong. can anyone...


Have you got the sub defined to the Onkyo correctly? Try conencting the sub's input to one of the Tape Out connectors and play some FM through it. That will prove if the sub is alive. The nwe can troubleshoot the correct failing device.

May 03, 2010 | KEF Audio PSW 1000 Subwoofer

1 Answer

Subwoofer turns on and is hooked up, but no sound.


The signal don't seems to be present to the sub input.
Try change the wire betwen the audio system and the subwoofer.
Spider Guy

Mar 15, 2010 | Onkyo 630-Watt 7.1 Channel Home Theater...

1 Answer

I cant seem to get the sub woofer to put out sound


Hello, are you using the subwoofer output on the receiver?
Did you turn the subwoofer on within the receivers onscreen setup?
this requires going into the menu selecting speaker setup and telling the receiver that you do have a subwoofer connected.

if you have done all this I would try to fist make sure the sub is working. easiest way is to plug a source directly into the rca inputs of the sub and see if it powers up. A CD player or even an ipod with the right connector will work.

if the sub powers on and produces sound then the issue is in the receiver and you will have to play with the setup. Its possible that the output jack is bad, I've had that happen when I pulled on an RCA cable and pulled out the socket but that's rare.


Is the subwoofer set to turn on automaticly when a signal is sensed?
does it have a switch to select high or low level inputs (speaker jacks or RCA connections on the back)

hope that helps
remember start by making sure the sub works then figure out why the receiver isn't sending a signal.



Feb 19, 2010 | Yamaha RX-V661 Receiver

1 Answer

My jamo sub 200 & pioneer vsx517 receiver is not working properly


What do you mean that it sometimes doesn't work? It doesn't power on automatically?
Check settings of your receiver - if it has subwoofer output enables and if low frequencies from all channels are directed also to the SUB. By default only the LFE channel (.1) of 5.1 signal input is fed to the subwoofer. So Sub will work in this case only when you listen to 5.1 signal (DVD movie for example), but for radio or stereo music, only front speakers are used. By configuring this bass redirect, you can use subwoofer for all signal types.

Feb 08, 2010 | Jamo SUB 200 Subwoofer

1 Answer

Subwoofer pre-out wires


Sorry for the stupid question but is your subwoofer a powered sub? The subwoofer out is just a preamped signal that drives a powered subwoofer. Let me know then we can go from there.

Jan 28, 2010 | Audio Players & Recorders

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