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T70pbm subwoofer no bass at all , lights turned, power on , auto on sensor worked

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Light turns on but no sound

This is a powered sub, which means it has it's own amplifier providing the power for big bass. When you removed the back you probably removed it's amplifier too so it's normal that now you only get the bass performance of a normal speaker.

Oct 17, 2012 | Aiwa TS-W60 Subwoofer

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I have a Klipsch Sub-10 It is NOT working. I am not sure what happened. It was just fine last week. It's powered up and everthing but not throwing any bass. It was also detected during the auto setup.

If you're saying the auto setup produced sound then the sub and its amp are fine.

So we need to examine the source electronics for actual playback settings. Give a hint of what that might be.

Feb 19, 2011 | Klipsch Synergy Sub-10 Subwoofer Speaker

1 Answer

I have a Kenwood 1050sw subwoofer that will not work. The power light comes on buy nothing happens. Last time I used it worked okay, then I replaced my receiver and didnt hook up my sub til about a couple...

Tell us a bit about your NEW RECEIVER. I'm sure the manual explains how to set up and direct bass to a subwoofer.

Basically, you have to inform the receiver it HAS a sub, then you define the ability to share bass with it, then you adjust relative loudness with a test tone and you're off. is where I get most of my manuals.

Jan 16, 2011 | Kenwood 1050SW Speaker

1 Answer

I get a red light on the back panel labeled power. No green light. I don't think the PV 600 is working but when I run the channel check through my Pioneer THX receiver I hear sound. Any thoughts?

The PV600 and PV400 have auto-on circuitry that turns the subwoofer on when a signal is presented, and turns off if no signal is detected for 15 minutes.

Not knowing which Pioneer receiver you have I have dropped in the steps for No Sound from Subwoofer:

• Check that the subwoofer is connected properly, switched on and the volume turned up.

• If your subwoofer has a sleep function, make sure it is switched off.

• Make sure that the Subwoofer setting is YES or PLUS (see Speaker Setting on page xx).

• The crossover frequency may be set too low; try setting it higher to match the characteristics of your other speakers (see Speaker Setting on page xx)

• If there is very little low frequency information in the source material, change your speaker settings to Front: SMALL / Subwoofer: YES , or Front: LARGE / Subwoofer: PLUS (see Speaker Setting on page xx).

• Check that the LFE channel is not set to -80dB , or a very quiet setting (see Bass Peak Level

on page xx).

• Check the speaker level settings (see Channel Level on page xx).

Regarding the Large vs Small assignment of speakers, what they mean isn't so much the physical size but the ability to handle real bass. Large if Yes.

Jan 12, 2011 | Boston Acoustics PV600 Main / Stereo...

1 Answer

I have hooked this up to a working reciever that

Fill in the blanks about the working receiver.

You mention another subwoofer, which suggests your receiver manages the bass and possibly sends most or all of it to the sub.

If it's NOT sending the bass to the speaker terminals you use to drive the AM5 that would explain it's virtually silent bass module.

If those speaker terminals on your receiver can be set to LARGE, do it. Otherwise they assume the speakers are incapable of handling bass.

Apr 02, 2010 | Bose Acoustimass 5 III System

1 Answer

No sound from Sony SA2500 subwoofer

Please intimate exact model number written on sticker pasted at back of Sony subwoofer to provide you help.

Aug 01, 2009 | Sony SA-WX700 Subwoofer

2 Answers

Klipsch ksw subwoofer wont power on

The power supply switching transistors are likely fried. Dangerous high voltages involved. I would remove the plate and send it to Klipsch for repair.

Jan 16, 2009 | Gem Sound SUB-650M Speaker

1 Answer


Hi Cassie, unless your receiver is a surround reciever, it won't have an actual subwoofer output. The good news is that you can use either a "line out" jack or a "tape out" jack instead, which most receivers do have. These jacks always have the signal, so there are no special settings to remember - simply operate your receiver as usual. Everything comes out of these jacks, not just the bass - but it won't matter since your subwoofer will only reproduce the bass frequencies. The bass information is generally identical in both left and right channels, so either the right or left jack should work fine, and it's okay to leave the other one unconnected. The only bad thing is the line and tape outputs are not affected by the receiver's bass and treble controls, so you'll have to control the bass volume at the subwoofer if it has a control. If you can't control the amount of bass you hear, turn up the volume and reduce the treble which will give the illusion of more bass. I'm assuming you have "powered" subwoofer (has its own built-in amplifier). Good luck!

Jun 22, 2008 | Bose Acoustimass 15 System

1 Answer

Sub freaking out! :-(

exactly......I bought a Klipsh

Nov 20, 2006 | JBL PB12 Subwoofer

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