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Mission 70ASE subwoofer

post #1 of 8
1/27/10 at 12:47pm
Thread Starter 
hi i have a problem with my mission subwoofer when i turn the volume control knob on my active sub there is no ajustment it is either no sound at all or full volume with nothing in-between. could any one give me any ideas has to what the problem could be and how to repair it
thanks
Edited by zac47 - 1/30/10 at 1:16am
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post #2 of 8
1/27/10 at 1:20pm
Are you talking about the volume knob on the receiver or the sub's level knob on the amp?  How is it connected to your receiver?
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post #3 of 8
1/27/10 at 1:26pm
could also possibly be what you have your sub set as....as hz goes.
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post #4 of 8
1/30/10 at 12:56am
Thread Starter 
hi Robert_J 
its the vol.level knob on the active sub itself, when you start to turn it from its lowliest position it just goes to full volume.I took it to a TV repair shop where we live and all he could say was he was sure it wasn't the control knob that was at fault i think he couldn't be bothered to check the circuit board..We are short of good Hi- Fi repair shops where i live in Barnsley South Yorkshire England. it as been fine for the last 2 years .It is connected to my Yamaha amp via audio cable.two audio inputs on back of the sub to one input on back of amp 

Edited by zac47 - 1/30/10 at 1:14am
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post #5 of 8
1/30/10 at 1:01am
Thread Starter 
Hi humphreys1588
not sure what you mean but It is connected to my Yamaha amp via audio cable,and as been fine for the last 2 years
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post #6 of 8
1/30/10 at 6:16am
It could be the pre-amp board or even the control knob.  Since you are short of good repair shops in your area, are there any capable ones in England?  What does Mission have to say about this situation?  I've never dealt with them but most of the big companies have decent customer support.

You should also start calculating your max price for getting this issue corrected vs buying a new sub.  It sounds like you will be shipping it for repair which will add to the costs.  It may be cheaper to remove the amp and just ship it if the repair company has a sub to test with.
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post #7 of 8
1/30/10 at 12:52pm
Thread Starter 
thanks robert i was just hopeing somebody might know which part on the board needed replacing.Good idea to remove pre-amp and ship to be repaired.
thanks
kevin 
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post #8 of 8
1/30/10 at 2:43pm
might be cheaper to buy a new or used sub from audiogon or ebay
say paradigm or svs
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