Question about Mordaunt Short 309W Subwoofer

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No Power - LED not lit.

My MS 309 Sub has suddenly stopped working. There is now power getting to it, have done the obvious and changed the plug fuse, does it have an internal fuse or is it likely to be something more serious? Appreciate any help you van give. Cheers Andy

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Re: No Power - LED not lit.

Open up the back of your gale 3080 and check the 2 fuses situated near the transformer.They look like 2 silver cylindrical shapes.Check that they have not blown if they have the will cost you around £2 to replace.Better than the 50 quid you will pay when you take it to your hi fi dealer to open up the back of it.

Posted on Aug 21, 2008

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Re: No Power - LED not lit.

If your control center is damaged then your sub will not function.

Posted on Aug 08, 2007

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Re: No Power - LED not lit.

The Mordaunt Short 309W Sum woofer is an Active Sub woofer, which means it has an internal Amplifier Circuit. In all likelihood some component insude this Amplifier circuitry is faulty. Get a professional Technician to have look. should not really cost you much, unless the Techie knows the cost of Morduant short Speakers and charges you based on this. Cost of Oil change in Ferrari or Beetle is the same, unless the guy tells you that ferraris are costlier, so Oil change is also costlier!

Posted on Aug 12, 2006

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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.
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Let's assume that everything works, so far.
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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,

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