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Prime mova 7th November 2012 04:12 AM

Old school Rockford Fosgate Power 1000c MOSFET
I've look over the posts over the last 18 months and Im always impressed w/the diagnostic skills you guys have. I fully intend to purchase Perry's $50 training program but at the moment im having some health problems from a MVA. I know you guys have an awesome knowledge of Rockford amplifiers, does anyone happen to have a schematic of the Rockford Fosgate Power 1000 MOSFET or know where I could get one ? If you have any other info that you could share I'd appreciate it. I've passed my amplifier onto an electrical engineer but he only has experience w/ADS amps. Please see attached pics, I though id start a thread I don't want to be rude but you guys are da men :)

Perry Babin 7th November 2012 05:08 AM

You can get diagrams for most of the older Rockford amps directly from Rockford.

Prime mova 7th November 2012 06:40 AM

An interesting observation on the pics the Allen screws holding the MOSFET bar down have rusted, is this due to water getting into the amp ?

seankane 7th November 2012 06:51 AM

Probably has been sitting in a shop or garage where someone has been using a rapid heat method such as propane and is caused by years of "sweating".

seankane 7th November 2012 06:52 AM

I have the schematic let me search a few hard drives its somewhere LOL!!!

Perry Babin 7th November 2012 07:48 AM

This is a zipped file with photos of one version of the 1000. I don't know if it's the same as yours. Sometimes photos help because there are no circuit board designations printed on the board.

Prime mova 7th November 2012 11:05 AM

Thanks guys for the replies, I hope this "beast" of an amp gets back to its former glory.

Does the bar over the MOSFETS need to be tensioned at a certain "tension" any clues on this ?

seankane 7th November 2012 05:56 PM

I think tightened equally is more important. I dont go extremely tight but just beyond snug. I usually start in the middle and work my way out, kinda like you would do on a head gasket for an automobile.

There is no need to "reef" them down you can break the FETS, you just want them tightened evenly and enough to make sure the FETS are securely clamped down evenly with no air voids under them.

Perry Babin 7th November 2012 11:03 PM

I generally tighten them until the silicone rubber pad is displaced about 1/16".

You can get replacement silicone rubber tape and screws from

Prime mova 9th November 2012 08:50 AM

I'm chasing down some more tech gear, the Rockford site doesn't have the Bios procedures for the power 1000 MOSFET amp could you guys help w/this ?. I also need to acquire a component "IRF 542" please paste a link to the component if you know of a reasonably priced one.

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