repairing 5-7k amps

[timwebb]

just want to know if these are worth fixing when they blow.or leave them alone?

 

[JZatopa]

Could you tell us more, what it the brand, can you give us a link to the website?

 

[timwebb]

like a cactus 7k amp i can get one but i heard parts are hard to find for those large amps.

 

[mike49504]

Parts arent hard to find for theese amp But they can get expensive to fix.

Also can be very time consuming to repair just depends on what your willing to spend for parts and how much time you want to put into this amp.

My friend just repaired one of thoose amps and spent about 250.00 in parts alone ( all new outputs,new driver board, resistors, diode,transistors ect.

He had about 20 hours of troubleshooting and replacing parts.

 

[Perry Babin]

The biggest problem with these amps is that if you miss one defective part (which may not be obviously defective until it's removed from the board), it can destroy all of the outputs and the driver ICs on the driver boards INSTANTLY when power is applied.

The outputs are in short supply right now and if you can find them, they're typically very expensive.

 

[timwebb]

i think ill leave those amps alone. i dont parts in bulk like that.

 

[JZatopa]

For the price they may be worth fixing but I would pay someone to fix them.

 

[richie00boy]

The outputs are in short supply right now and if you can find them, they're typically very expensive.

What kind of output devices are they?

 

[Perry Babin]

They generally use the IRFP360LC. As of now, Future shows stock for a reasonable price but for the last few months, almost everyone has been out of stock. Those with stock wanted $10+ each.

 

[richie00boy]

Thanks. Wonder what the attraction to those particular devices is? Are they class-d amps?

 

[Perry Babin]

High voltage (some amps have more than 300v across the rails), relatively high current capacity and low input capacitance (which reduces the load on the driver ICs).

Yes.

 

[mbates14]

jeezus. what you trying to do, blow the roof off the car? why that kind of power.... thats power you would see in a plasma sustain board.