Question about Bose Acoustimass 15 System

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Same problem with woofer

I tried plugging into different outlet still nothing. I think I might take it in for service because I have run out of ideas and hearing a movie without the bass is terrible. Do you have anymore ideas I can try.

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Re: same problem with woofer

Hi, to test the woofer , u take a 1.5 v battery, put one end of the +ev on one terminal and tap the -ev on the other and notice if u can hear a clicking sound as u tap, if not than the speaker/woofer coil or the cross over curcit is open, let me know,

Posted on Jan 13, 2008

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Powered subwoofer has hum

First of all confirm if the hum is an internal or external problem.
Disconnect the RCA sub woofer input from the back of the unit and turn it on. If there is no hum it could be the interconnecting cable or the output from the receiver. But in the stand alone mode if the sub woofer hums when powered on you have internal problem and will have to be looked into by a professional.
Many a time the earth or the shield of the interconnecting cable is the culprit, because the sub sits on the floor and you might shift it for cleaning the floor and the cable can stretch and snap internally.

Apr 01, 2011 | JBL SCS145.5 System

1 Answer

Can`t power it up. Connections and fuse OK. Stopped working after switching off and would never switch back on. LED indicator light`s neither green nor red but simply off.

First, I have to commend you for having a really fine piece of equipment. Mission makes great products. Now down to business. Being where I am and not being next to your sub-woofer with test instruments and tools I'm going to be so basic as to almost be insulting. However, If I were there, I would be testing these things.
Normally, when one has a catastrophic failure. i.e. no power, and no indication of power present one starts with the power supply. And that starts at the power company.
1st Determine if there is power in the actual outlet that the unit is plugged into. I have found that when installing a sub-woofer on a two plug wall outlet, for example, it might be plugged into a plug intended for a floor lamp. and is turned on and off by a wall switch. Many residences have this feature. It is usually one of the two plugs in an outlet. So you have to test the actual physical outlet. If the outlet is off, check the light switches. If there is no power to the outlet, check the household circuit breaker.
Let's assume that everything works, so far.
The next thing to do is check the internal fuse with a meter. If you don't have one, pick up a multimeter from Radio Shack or Walmart for less than $20.00 or Harbor Freight for less than $7.00
If the fuse looks good but checks out bad (sometime happens) replace it with A FUSE OF THE SAME VALUE. DON'T STICK IN A PIECE OF ALUMINUM FOIL OR BYPASS THE FUNCTION AND PURPOSE OF THE FUSE. The fuse costs a dollar, at the most, the Sub-Woofer costs $800.00 at the most.
OK, so now you have either a working sub-woofer, or an elegant paper weight.
If it is still being a paper weight, contact mission to locate an authorized service company. This piece of equipment in not designed to be user servicable
Here is their link below,
I hope this helps,
Best Regards,

Jan 20, 2011 | Mission M5AS Subwoofer

1 Answer

It will not power on

Your sub should turn on into standby mode when plugged into AC power without being attached to the receiver. If it does not follow the list below. If it does, the sub needs a signal from your receiver via either by line-level (RCA) or the speaker wires to turn on out of standby. Ensure that the cable or wires going to your sub is in fact sending a signal while the receiver is on. To Test, (speaker wires) hook up a different known working speaker; (line-level) Some receivers have a menu option to turn the LFE output on and off, ensure that it is on and producing a signal.

Diagnose the problem:
1) Remove all wiring to/from the unit except for the AC plug (use a different known working AC outlet), will it turn on? If so the other outlet is not working.
2) Remove the woofer, does the amp have a fuse that need to be changed? Change the fuse. If it blows again after replacing and turning back on, the speaker is blown; go to #4.
3) Unplug the woofer from the amp, does it turn on? If so, go to #4.
4) The sub need to be serviced.

-Hope this helps, Chris.

Aug 29, 2010 | JBL PSW-D112 Speaker

2 Answers

Subwoofer continuous buzz/signal noise

I just bought mine yesterday and have the same problem... did you find a solution (other than throwing it out the window)?

Nov 18, 2009 | Bose Acoustimass 15 System

3 Answers

I have one Peavey SP5 that suddenyl lost the Woofer end. Horn still spits out but absolutly NOTHING at all from the Bottom 13". I swapped out fuses adn same problem, I switched outputs on the amp, same...

If you have a pair, swap the woofers. If the other one works in the cabinet, then it's definitely the speaker. If it doesn't, then you've likely got a problem with the crossover inside the unit. I believe you can get a replacement crossover from Peavey. If it's the speaker, google speaker re-coning in your area, as it's cheaper to re-cone the speaker than replace it.

Jun 07, 2009 | Peavey CH1 Speaker

2 Answers

No low end on JBL EON G2

please use a different connectors and try if it works

Dec 15, 2008 | JBL EON 15-G2 Powered DJ Speaker With EQ...

1 Answer


Please check your model number, I can not find it on the JVC service website.

This is a powered sub-woofer I think. You need to have a thick black cord that connects the sub to the head unit. Then the satellite speakers get connected to the speaker jacks on the sub-woofer box. The sub-woofer should also be plugged into an A/C outlet on the wall.

The speaker outputs are labeled right there where you connect the speaker wires. You should see a red and black connector for each speaker and they are labeled "front right" "front left" "center" "rear right" "rear left".

If you do not have the thick black cord you need to connect the head unit with the sub-woofer, you can not use this system.

If you look at the head unit and give me the model number on it, I may be able to find the part you need. But I must have a good model number to work with, preferably from the head unit.


Nov 10, 2008 | JVC SPPWA670 Subwoofer

1 Answer

Infinity 3.5c , 2 powered Woofer 5.25" suddenly no sound.,

The woofers on my 3.5c stopped working, but with mine the light was off. I unplugged it and left it for about 24 hours and then plugged it back in and it worked. No idea why. It's happened twice and each time takes at least 12 hours or a day or so before it'll work again, just unplugging it for an hour won't do it.

It seems like both times the problem started when the speaker got unplugged without it being shutoff first, but I can't confirm.

But if your light is still on it's probably a different problem. With my 4.1t towers when the light was on but there was still no sound it equated to numerous fried amp components which cost about $150 for repair.

Oct 31, 2007 | Infinity Intermezzo 3.5C Center Speaker

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