Sub woofer will not work power lamp comes on green then turns to red

If only the red bulb in the bigger woofer is on and the green bulb does not turn on, and there is no sound, it indicates a potential issue with the power supply or the internal components of the woofer system. Here are a few possible problems and solutions:

1. Power Supply Issue: The green bulb not turning on could indicate a problem with the power supply to the woofer system. Check the power cable and ensure it is properly connected to the socket and the woofer. Try using a different power outlet or testing the socket with another device to confirm if the issue lies with the power supply.
2. Internal Component Fault: If the power supply seems fine, there may be an internal fault within the woofer system. It's possible that a component, such as a fuse, capacitor, or circuit board, has malfunctioned. In this case, it is recommended to contact the manufacturer's customer support or consult a professional technician for further diagnosis and repair.
3. Wiring or Connection Issue: Check the wiring connections between the woofer and any associated speakers or audio sources. Ensure that all cables are properly connected and secured. Faulty or loose connections can result in a lack of sound or improper functioning of the system. Try disconnecting and reconnecting the cables to see if it resolves the issue.
4. Control Settings: Verify that the control settings on the woofer system are properly adjusted. Ensure that the volume control is set appropriately and not at its lowest position. Also, check any other control settings, such as tone or balance controls, to confirm they are not causing the issue.
5. Faulty Bulb or LED: If the green bulb is not turning on, it could indicate a faulty bulb or LED. Consider replacing the green bulb with a new one of the appropriate specifications. If the woofer system has LED indicators, it may require professional repair or component replacement.

If the above steps do not resolve the issue, it is recommended to consult the manufacturer's support or contact a qualified technician for further assistance. They can provide specific guidance based on the make and model of your woofer system and help identify and rectify the problem.

Most likely a burned out Sub amplifier.

It is hard to say. The sub-woofer has its own amplifier, although it is supplied the sound data from the main amplifier. It could have a problem with the battery power circuit (Sub-Woofer Amplifier Connector Pin 6, LIGHT GREEN/VIOLET) or it could have a problem with the GROUND circuit (Pin 2, BLACK/LIGHT GREEN) Or it could possibly not be receiving the signal from the main amplifier (Pin 7, BROWN/ORANGE "+"), (Pin 8, RED/BLACK "-"). Or it could be that either the sub-woofer speaker is blown, or the sub-woofer amplifier is defective.
There is also a "High Audio Mute" circuit that connects between the main amplifier and the sub-woofer amplifier.

Hi,
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,
Mark
http://www.mission.co.uk/Default.aspx?lang=En

The Boston Micromedia speaker set comes with two speakers (right and left),a subwoofer, and a complete set of cables to connect everything up.

1.) Position the speakers. The two small speakers typically are spaced equal distance apart on a desk/table top to the benefit of the listener. The sub-woofer typically rests under the surface, on the floor for example.

.) Connect the cable sets to the back of the two small speakers along with the speaker feet.
Note: the small speaker with the volume control knob will have three cables coming from it. This will be the "right" speaker. The other speaker will have a single cable and will be the "left" speaker.

2.) The cable ends will be color coded to match the jackson the sub-woofer. Match up the color coded cables to the respective colors on the subwoofer as follows:

(a) White cable end (left speaker) to white jack on sub-woofer.
(b) Red cable end (right speaker) to red jack
(c) Purple cable end (input) to the purple jack
(d) Green cable end (computer out) to the computer's microphone output jack.

Note: if any of the cables are too short to reach their jacks for whatever reason, an extender cable with a female and male end can be purchased relatively inexpensively to make up the difference in distance.

3.) Power up the system (plug in power cables to the sub-woofer and wall), play some music, and adjust the sub-woofer sound (control knob) to suit listening pleasure.

A nice little set of speakers, I had mine for some years now and continue to enjoy them. Good luck!

you may be running 2 low of ohm load

Red - power
Black - ground
Blue - turn-on (switched 12 volt)
Green and Gray -- Hook to factory/aftermarket stereo for the signal.

if you know what a transformer is, and if you have a multimeter, i suggest you to go ahead andcheck the transformer,

sir,,i think there is something wrong with the connections or the cross over,,,kindly check it out or mjaybe the cone of ur speaker is damage,,,hope too help you thnkss??