Hi all
Have 4 18 inch Maelstrom sealed subwoofers with 4 Hypex DS 8.0 plate amps about 12-14 years old. frequently I run a test tone to each sub via minidsp 2 by 4 Hd via RCA cables and find a sub is 5 db-10 less output my target volume of 85 db .
Sometimes the test tone is the is at 50-60 db and I think it is not working at all until I am standing next to that sub ready to power on off again.
temporary solution for the sub that is low on test tone , I have found over time that if I toggle the sub power on off rocker switch usually after 2-3 on off the sub test tone volume comes back to the 85 db. Sometimes that does not work and I have to pull out the power cable from the sub and replug, the sub end, not the wall socket. And that works to return sub to my set level.
This happens on several of the subs on a random basis, however I would say that It happens to the same sub very often, sometimes several times a week. a second sub has a similar issues and the other 2 subs very rarely.
I have raised this with Hypex service support and they are not familiar with this problem and have no suggestions.
My son is Electronics Engineer who builds and repairs amps as a hobby and he has tested plate amp on his bench and found no issues. He has a range of test equipment if there are other suggestions as to what he may check?
Thanks for any suggestions?
Regards
Kevin Australia
Have 4 18 inch Maelstrom sealed subwoofers with 4 Hypex DS 8.0 plate amps about 12-14 years old. frequently I run a test tone to each sub via minidsp 2 by 4 Hd via RCA cables and find a sub is 5 db-10 less output my target volume of 85 db .
Sometimes the test tone is the is at 50-60 db and I think it is not working at all until I am standing next to that sub ready to power on off again.
temporary solution for the sub that is low on test tone , I have found over time that if I toggle the sub power on off rocker switch usually after 2-3 on off the sub test tone volume comes back to the 85 db. Sometimes that does not work and I have to pull out the power cable from the sub and replug, the sub end, not the wall socket. And that works to return sub to my set level.
This happens on several of the subs on a random basis, however I would say that It happens to the same sub very often, sometimes several times a week. a second sub has a similar issues and the other 2 subs very rarely.
I have raised this with Hypex service support and they are not familiar with this problem and have no suggestions.
My son is Electronics Engineer who builds and repairs amps as a hobby and he has tested plate amp on his bench and found no issues. He has a range of test equipment if there are other suggestions as to what he may check?
Thanks for any suggestions?
Regards
Kevin Australia