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Sub woofer shuts off

Hi My subwoofer shuts down whenever it seems like there is a moderate to high level ov bass needed.I have turned the bass level to zeor and it still happens

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Re: sub woofer shuts off

Please check sub cable first with another good one and then change sub itself.because it draw too much power.

Posted on Apr 06, 2008

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I have a sony HTDDW7600, i cannot get the dedicated subwoofer amp to work. The fan is running on it, but for some reason the only way i can get it to do anything is to unplug the cable that goes from the...

You have a very good of the best of SONY..SUB does not get activated automatically especially on STEREO mode.DIRECT STEREO Notes • No sound will be output from the subwoofer.
.your system has Dedicated Power Amplifier for 2 Externally Driven Sub-Woofers (200W RMS x 2) order to activate the sub woofer amplifier you need to make a selection on the surround modes while you are switching the modes of the surround you will see the speaker position on the display of receiver as well..if you do not see the sub woofer it wont be activated..Sound Field Program (A.F.D) is a good example to test it..
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Hope this helps!

Additionally please follow the instruction on your user manual to activate the SUB ,as is follows..

Low-frequency (bass) signals can be directed to the
subwoofer and/or the front left and right speakers
according to the characteristics of your system. This
setting also determines the routing of the LFE (low-
frequency effect) signals found in Dolby Digital or DTS
Choices: SWFR (subwoofer), FRONT, BOTH
• Select SWFR if you connect a subwoofer. LFE and
low-frequency signals from other channels are directed
to the subwoofer according to the speaker settings.
• Select FRONT if you do not use a subwoofer. LFE and
low-frequency signals from other channels are directed
to the front speakers according to the speaker settings
(even if you have previously set the front speakers to
• Select BOTH if you connect a subwoofer and you want
to output low-frequency signals from front channels to
both the front speakers and subwoofer. LFE and low-
frequency signals from other channels are also directed
to the subwoofer according to the speaker settings. Use
this function to reinforce low-frequency signals using
the subwoofer when playing back sources such as CDs.

Jun 23, 2011 | Sony MUTEKI HTDDW1600 Theater System

1 Answer

Can i put an extra sub woofer on my lg da3525 via the woofer out socket and what plug do i require to do this


How to Connect 2 Subwoofers to One Receiver

Subwoofers produce the deep bass sounds that give home theater the realism of being at the movies. A good subwoofer can rattle the walls during action sequences, while adding depth to recorded music and a heightened sense of feeling in the midst of a televised sporting event. Because most home theater receivers are equipped with a single subwoofer jack, connecting a second subwoofer requires a simple audio adapter available at electronics stores. Self-powered subwoofers have their own built-in amplifiers to drive the bass speakers, so they cannot drain power on the main receiver in a system and thus pose no danger to the equipment, even when an extra subwoofer is connected.

Things You'll Need:

Home theater receiver
Y-adapter with RCA jacks on two ends and an RCA plug on the other, available at electronics stores.
2 RCA subwoofer cables
2 subwoofers


Plug the Y-adapter into the home theater receiver's "Subwoofer OUT" jack.

Connect an RCA subwoofer cable to each jack on the Y adapter and route the cables to the subwoofers in the room. Because subwoofers deliver an omnidirectional sound, the boxes can be placed anywhere they won't get in the way, but within reach of an electrical outlet..

Plug an RCA cable into the "Sub IN" jack on the back of each subwoofer.

Connect the subwoofers to wall outlets and turn on each unit by pressing the power button, typically located on the back panel.

Adjust the volume and crossover settings on each subwoofer as desired. The crossover adjustment knob tells the subwppfer which low-end frequencies to reproduce from the audio signal, such as a movie on DVD. All frequencies higher than the crossover setting will be transferred to the other speakers connected to the receiver.

Tips & Warnings

Use subwoofers that are closely matched in power, as rated in watts, when using two subwoofers in a home theater setup.

Disconnect the subwoofers from the power supply while making the audio connections.

Have a nice day...

Feb 19, 2011 | LG DA-3525 Theater System

1 Answer

I have a Sony DAV S500 AV system and with certain DVD and with the volumn just over 20 (not really that loud), the system shuts down and PROTECT shows in the message window. I read somewhere on the web...

If the subwoofer and other speakers were included with the system, THAT is what they're designed for. Mixing and matching with other products is usually discouraged if not forbidden.

If the problem returns with connection of the sub it may be defective or on its way out. Internal damage to the voice coil from being overdriven could have melted or worn through the insulation and it would cause intermittent undesired electrical contact or load variation under certain conditions, like high volumes.

If your speaker level settings are unusually boosted for the sub you may be overdriving it.

Feb 07, 2011 | Sony DAV-S500 System

1 Answer

I have the sub woofer and two sp-thc5f front speakers. Can I hook this subwoofer directly to my JVC 56 high def big screen or do I need a dedicated amplifier that works this sub wooofer?

No, the powered subwoofer gets its signal AND power through the DIN connector so you'd have to second guess JVC engineers on which pins are power or signal; and what voltage level it supplies and then you'd have to come up with a source for the power. Managing the volume and relative levels would be a trick, too. Devastation lies down that path.

Get the prescribed JVC electronics or go with a whole new sound solution.

Jan 16, 2011 | JVC THC5 Home Theater System with 5-Disc...

1 Answer

Connected home theatre system but no sound sub woofer

If the system uses a remote control, you may need to adjust the subwoofer out signal setting or turn on the sub in a menu, and on many systems, you can only access those settings via a remote control (you should check the onkyo user manual on how to do it).

Now, this is just one suggestion, it may work, but then again, it may not.

These could also be connection problems or some internal trouble in the onkyo sub signal output section or in the subwoofer input section, but hopefuly, it's just a "turn on" or "signal level" setting in a menu.

Good luck

3rq8 (triarcuate)

Jul 23, 2009 | Onkyo HT-S780 System

1 Answer

HTS 6500/37 sub woofer

the reciever should have a "subwoofer level" setting, or a "bass level control" If you cannot find this then try to place the "sub-woofer" away from walls and elevate it from the floor. This will reduce it's loudness/ intensity at annoying frequencies...

Good Luck

Jul 25, 2008 | Philips HTS-6500/37 System

1 Answer


often your sub need to be change because of its malefunction.

Mar 09, 2008 | JVC TH-M303 System

1 Answer

Subwoofer Bass Level Problems

What is your sub stood on? If it is on a piece of furniture then this could be the problem. Bass frequencies travel further than higher frequencies due to their longer wavelength and will also be transmitted through any solid objects the speaker is in contact with. The solution is to mount your sub on a piece of foam to provide some damping.

Also if your sub has a port (a hole) on the back or side this needs to have a good 3 or 4 inches clearance from nearby walls or panels.

Finally the speaker cone itself needs to have a clear path to push sound energy into the room, if this path is blocked by furniture (some people like to hide them under tables) then it may make that furniture vibrate.

Nov 26, 2007 | JBL SCS200.7 Home Cinema Package System

1 Answer


Sounds like your original and this sub have bad amps. The amp for the sub is not the same as the amp for the other speakers. The old unit has a dead amp and this new one is on the way out. (Pulling too much current on high bass)

Mar 30, 2007 | JVC TH-M505 System

1 Answer

Systems shuts off if sound gets too loud.

Yes, i had this same problem. If it was too loud, at level 37+, any loud boom would shut down the subwoofer, subsequently shutting down the speakers. As such, I figured it might have been the 8 pin dim cable, but that wasn't it. What solved the problem was lowerin the BASS level. Not the level on the subwoofer, but the actual BASS level. I had it at +10 (the max) and it was too much for the system to handle. I don't think I ever had it like that so I'm assuming someone, maybe my daughters, moved the settings. But anyway, moving the bass level back down to either 0 or +3 at most maintains the "boom" effect of the subwoofer minus the shutting off of the system.

Oct 20, 2006 | JVC TH-C60 System

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