Rockford 40DSM birthsheet?

[45js45 10+ year member]

Any one have a birthsheet for a Rockford Fosgate 40DSM?We recently installed 1 in my sons car and I am impressed by the power of this little amp.If ya have any pics please post em.I am interested in the 2 and 4 ohm stereo as well as the 4 ohm mono load.Can this be run in a 2 ohm mono?

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[RAM_Designs 5,000+ posts]

Count on ~2x rated for most of that really old RF stuff. Not sure if it's 2ohm stable.

 

[Louisiana_CRX 5,000+ posts]

don't run it 2 ohm mono

 

[bigdwiz 10+ year member]

Any one have a birthsheet for a Rockford Fosgate 40DSM?We recently installed 1 in my sons car and I am impressed by the power of this little amp.If ya have any pics please post em.I am interested in the 2 and 4 ohm stereo as well as the 4 ohm mono load.Can this be run in a 2 ohm mono?

Around 50w/ch @4 ohms and 180w or so bridged @ 4ohms.

I've never used one of these at 2ohms mono, but had no problems with a Punch 45HD or Punch 400x4 (both pre-DSM series) running 2 ohms mono (each for several years and they are still alive and kickin' today!).

I put up a vid on YT of one of my Punch 40i DSM amps:



-BigDWiz

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[helotaxi 5,000+ posts]

I know that the RF dealer in my hometown used to run the 200DSMs bridged @ 2ohms back when those amps were new. I remember several competitors back in the day that ran them lower than that.

 

[pro-rabbit 5,000+ posts]

I do not suggest the 40dsm at 2 ohms. It will run it(not protection against it) but it will get hot and power hungry. In most normally situations it will fail eventually. I have seem them do some pretty amazing things for what they are. Most claim they do around 200(ish) at 4 ohm mono. I would say that is about right.

 

[david in german 10+ year member]

Many moons ago I ran a single Punch 40i on 2 JBL power series DVC 10's at 1 ohm for about 6 months straight. It did get warm, ****** alot of power but kept on going without an issue. I would not do this to a now 20 year old amp though. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif wait a min, I have a old 40i sitting in my attic, maybe I will. LOL

 

[helotaxi 5,000+ posts]

I'd replace the caps first.