Danbass7 Posted June 29, 2011 Share Posted June 29, 2011 Ive got a Peavey Mk 8 head on two 210 TX cabs, both of the cabs instantly stopped working recently during a practice and the sound now being emitted is clear but extremely quiet. I know the head is still fine and its the cabs that are the issue due to the head having a full service earlier on today. What will the problem usually be in this situation and is it going to be worth fixing them? Cheers Quote Link to comment Share on other sites More sharing options...
hubrad Posted June 29, 2011 Share Posted June 29, 2011 If both cabs stopped simulaneously, I would suspect the amp, service notwithstanding.. when did this occur - before or after service? Tried the amp into another cab and with other cables? Etc. Quote Link to comment Share on other sites More sharing options...
Danbass7 Posted June 29, 2011 Author Share Posted June 29, 2011 [quote name='hubrad' post='1286834' date='Jun 29 2011, 07:28 PM']If both cabs stopped simulaneously, I would suspect the amp, service notwithstanding.. when did this occur - before or after service? Tried the amp into another cab and with other cables? Etc.[/quote] Due to them both stopping simultaneously I figured it must be the head. It was a few weeks ago they stopped working and the head service was today. I go to uni in London but have no bass playing friends back in Swindon (Where I am now and will be for a week) so had to just try my luck with getting the head sorted. I tested all the cables a second ago and they're all in good shape. This couldn't have come at a worse time with a much needed practice looming on Saturday and gigs all next month. Quote Link to comment Share on other sites More sharing options...
icastle Posted June 29, 2011 Share Posted June 29, 2011 [quote name='hubrad' post='1286834' date='Jun 29 2011, 07:28 PM']If both cabs stopped simulaneously, I would suspect the amp, service notwithstanding.. when did this occur - before or after service? Tried the amp into another cab and with other cables? Etc.[/quote] +1 I'd suspect the amp (or first cable in the chain) as the culprit as well. Dan - what was the engineers report on the amp? Quote Link to comment Share on other sites More sharing options...
Danbass7 Posted June 29, 2011 Author Share Posted June 29, 2011 [quote name='icastle' post='1287064' date='Jun 29 2011, 10:25 PM']+1 I'd suspect the amp (or first cable in the chain) as the culprit as well. Dan - what was the engineers report on the amp?[/quote] He took the entire amp apart (as much as these old bricks can be taken apart) did signal tests and replaced one of the output jacks. He said there are no issues whatsoever with the head, he said that any issues with the head/cabs (assuming the cabs were ok) would be to do with contact issues on the two patch units. I was assured that using a patch cable to go in-out whenever i dont use the patch ports would solve this problem. Also this was a lovely dude who came highly recommended and has over 30 years of experience working with bassist, some of which are on here. Quote Link to comment Share on other sites More sharing options...
mybass Posted June 29, 2011 Share Posted June 29, 2011 [quote name='Danbass7' post='1286804' date='Jun 29 2011, 06:52 PM']Ive got a Peavey Mk 8 head on two 210 TX cabs, both of the cabs instantly stopped working recently during a practice and the sound now being emitted is clear but extremely quiet. I know the head is still fine and its the cabs that are the issue due to the head having a full service earlier on today. What will the problem usually be in this situation and is it going to be worth fixing them? Cheers[/quote] Some amps also have fuses inside the casing, that is, not accessible unless the amp is unscrewed and slid out of its case. The fuses simply look like clear glass fragile mini tubes with fuse wire visible inside and I think they are quick blow ones as in, sudden voltage peaks and they will blow to protect the rest of the unit. These can blow! IF you decide to investigate, make sure the amp has been switched off for 24 hours and remember the circuit can hold a surpise charge for quite some time. I've experienced it! Also, the tweeter units/crossovers can also 'blow' but it would be unusal for both to go together. Quote Link to comment Share on other sites More sharing options...
Danbass7 Posted June 30, 2011 Author Share Posted June 30, 2011 [quote name='mybass' post='1287194' date='Jun 30 2011, 12:29 AM']Some amps also have fuses inside the casing, that is, not accessible unless the amp is unscrewed and slid out of its case. The fuses simply look like clear glass fragile mini tubes with fuse wire visible inside and I think they are quick blow ones as in, sudden voltage peaks and they will blow to protect the rest of the unit. These can blow! IF you decide to investigate, make sure the amp has been switched off for 24 hours and remember the circuit can hold a surpise charge for quite some time. I've experienced it! Also, the tweeter units/crossovers can also 'blow' but it would be unusal for both to go together.[/quote] This story has come to a close. They both are totally dead. The head luckily is in sublime condition thank god. Cheers for all the input and advice dudes! Dan Quote Link to comment Share on other sites More sharing options...
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