Hi, Are you losing the same channel every time? How loud were the amps playing at failure, and what was the nature of the failure e.g. Smoke? Bang? suddenly went quiet? Could be a number of things: Intermittent short in speaker cable or inside the speaker itself (check to be sure binding posts are tight, and no loose or stray wires at connecting points on both amp and speaker end), pre-amp may be putting some dc voltage into the power-amp (could be from the pre-amp or the cd player -you should be able to check this with a digital voltmeter -even a cheap meter). Could also be an arced voice-coil or crossover component. More info would help narrow it down.
Recurring Channel Loss on Power Amps
I have a recurring problem where my power amps keep losing a channel. I am wondering if it is just sheer bad luck or if it is possible that something else might cause this. Here is the story:
I am powering Celestion SL6si's (84 db sensitivity) using a Rotel RB991 bought new in 1998. I lost a channel on it 3 years ago and had it repaired. I then lost a channel this Spring and had it repaired again. After getting it back it blew a channel again within 3 months.
My backup amp was a Carver TFC50 bought in the mid 90's but seldom used. That also blew a channel this Fall while the Rotel was in the shop. Down to no power amps I bought an ancient Bryston 4B off Craig's List a month ago. It has now also lost a channel. The Bryston has a bad transformer hum so I know it is not in stellar shape.
Am I just overdue for some newer equipment or is there something in my setup that might be causing this? Other pieces of the system are:
Acurus RL11 pre-amp
Arcam Alpha 8 CD player
Any thoughts are appreciated.
I am powering Celestion SL6si's (84 db sensitivity) using a Rotel RB991 bought new in 1998. I lost a channel on it 3 years ago and had it repaired. I then lost a channel this Spring and had it repaired again. After getting it back it blew a channel again within 3 months.
My backup amp was a Carver TFC50 bought in the mid 90's but seldom used. That also blew a channel this Fall while the Rotel was in the shop. Down to no power amps I bought an ancient Bryston 4B off Craig's List a month ago. It has now also lost a channel. The Bryston has a bad transformer hum so I know it is not in stellar shape.
Am I just overdue for some newer equipment or is there something in my setup that might be causing this? Other pieces of the system are:
Acurus RL11 pre-amp
Arcam Alpha 8 CD player
Any thoughts are appreciated.
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- 8 posts total
- 8 posts total