Chaos
This is the third amp from when I purchased. First one lasted 3 months, second three days, the current one a several years. What is the preferred fix??? Thanks in advance.
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patmacav

If by "amp going bad..",
you are referring to an audible hum that may indicate caps going bad,
maybe a little research here..
http://www.avsforum.com/t/1250559/new-mfw-15-amps-may-2010-pics/1170
particularly post #1194 is very helpful.

Or you could consider Kevin's awesome Turbo Kit upgrade or you could look in the 'MFW parts and pieces. Need it? Got it? Post it here' thread, right here on this site to see if anyone has a replacement amp for sale.

Lots of options.

Good luck in your quest.

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Chaos
Thanks for your reply, I think I might go with temp repair for
right now. I'm not really comfortable with doing the board work
myself as I don't want to damage it. Is Murrel someone who fixes these??
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sandbagger
I dont think Murrel is fixing the amps any more and the cost of shipping both ways is expensive.

If you or someone you know isnt comfortable soldering them, take the directions to any local TV repair place and ask them to just replace the caps.  they should be able to do it for less than shipping.

If you need the directions shot me am email and I will send them to you.
Kevin
Motor City Custom Audio
http://motorcitycustomaudio.com/
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Chaos
Thanks, email coming for directions, this just happen at worst time. I just need to
get by for a bit then maybe turbo upgrade. Very grateful for your help and thanks
Merrel for the fix.
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micah3sixty
I did the cap replacement on my V1 MFW-15 but I'm still getting buzzing and occasional distortion, but not constant.  I replaced the 470uf, 22uf and 1000uf caps on power board.  The driver is fine and sound good when using a stereo amp I hooked up to test it.  Any other caps worth replacing or is this amp just dead otherwise? 
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marknoir
Haven't posted here in a while.
I bought an MWF-15 with a hum a couple of years back. I did the recommended fix, and it didn't hum for about a month. Then the hum came back. I decided to use the outboard amp and pulled all the guts out. Used Atlantic Technology amp and hated it. So I decided to sell the sub. I had a perspective buyer who asked me to test the old amp to be sure it hums but works. So I connected the original amp, which was on the floor about 1.5 feet away from the back the sub to driver, turned it on, and - ZERO hum. The moment I installed it in - LOUD HUM.

Any ideas???
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Mark_Seaton
marknoir wrote:
Haven't posted here in a while.
I bought an MWF-15 with a hum a couple of years back. I did the recommended fix, and it didn't hum for about a month. Then the hum came back. I decided to use the outboard amp and pulled all the guts out. Used Atlantic Technology amp and hated it. So I decided to sell the sub. I had a perspective buyer who asked me to test the old amp to be sure it hums but works. So I connected the original amp, which was on the floor about 1.5 feet away from the back the sub to driver, turned it on, and - ZERO hum. The moment I installed it in - LOUD HUM.

Any ideas???


Unscrew the amp and pull it out to see if it hums when pulled out.  It might have just taken a little longer to warm up and show the issue.  When you pull it out, check exactly where the cable running to the upper control panel routes, as this cable being too close to the transformer could cause a hum.  If you didn't have the control panel connected, that could have been the difference as it cuts out a lot of the circuitry.
Mark Seaton
Seaton Sound, Inc.
sales@seatonsound.net
773-290-8436
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