Carver PM 1.5 Power Factor |
Post Reply | Page <123 |
Author | |
ceharden
The 10,000 Points Club Joined: 05 June 2005 Location: Southampton Status: Offline Points: 11776 |
Post Options
Thanks(0)
|
While I will not claim to be a Carver expert, I have worked on the amplifiers before and have a reasonable understanding of the way they work.
However it might be that to return the amp fully it will require someone with more extensive test equipment than I have. I am willing to take a look and I'll reply to your email when I have a few more minutes. Currently battling with trying to stop one of my own designs oscillating at about 2MHz! |
|
Guy Johnson
New Member Joined: 30 December 2009 Location: West Wales Status: Offline Points: 7 |
Post Options
Thanks(0)
|
I knew a studio where they ran six PM 1.5s powering two ATC 100s. Sounded fantastic. No problems diving HF or MF drivers. I own an old Carver that was on the highs on an abused PA, and that was fine. Surely, there will be enough pauses in the signals to allow the supplies to settle down?
|
|
studio45
Old Croc Joined: 16 October 2007 Location: United Kingdom Status: Offline Points: 3863 |
Post Options
Thanks(0)
|
A small live music venue near me has a PM1.5 driving 4x JBL 1" comp drivers 5k-20k, and has been for about 20 years without incident. I think perhaps the low duty cycle of this frequency range with music signals allows time for the heat to dissipate. In operation, its level meter LEDs only move at all on a particularly loud "S" from the singer.
|
|
Studio45 - Repairs & Building Commotion Soundsystem -Mobile PA
|
|
anatech
New Member Joined: 26 January 2009 Location: Canada Status: Offline Points: 5 |
Post Options
Thanks(0)
|
Hi Studio45,
You are just really lucky then. If you ever drive that amp hard you'll be overheating it, which you probably are right now. The time constant on the commutators are set for bass or full range music. They will tend to stay locked up being used for mid-high duty. You're lucky, that's all. One day the cumulative effects of higher operating temperature may bite you. Failure rates double for every 10 °C rise in operating temperature. -Chris
|
|
Post Reply | Page <123 |
Tweet |
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |