First one lasted a week and the second one lasted about 40 seconds...
Got everything wired right 10 GA. Power and ground and all speakers are 4ohms and my voltage is good with no spikes battery is at 13.5 volts pretty much all the time.... any ideas?
Both amps made a Loud buzzing sound through all speakers!!

 

Where did you ground it to?

 

First one was to frame and second one was to battery.

 

Definitely sounds like a grounding issue (either that, or a problem with the amps internal circuitry design).

 

Between the two RF I had a Memphis hooked up and it played the whole time with no issues,just didn't like the amp sitting in my saddlebag.

 

What did RF have to say about it & did they warranty them?

 

what speakers are you using?

 

I got a good friend that owns a stereo shop so he swapped the first one out for me but not sure about the other one.
I'm running Kenwood excelon 6.5 components in front and
MB quart 6x9 in saddlebag all speakers are 4 ohms rated.
Actually my stereo shop guy hooked up the first one for me so I would think it was wired correctly....

 

Did you buy them new? What did the vendor say?

Personally, I'm skeptical since this amp has been out a while w/o similar reports.

Carl

 

Either you have really bad luck, or somethings not wired right, judging by the buzzing sound, I'd say somethings not right. The amp should not be grounded to the battery, find a spot on the frame (the front gas tank mount is usually good) scrape the paint, make sure you have a good ground. Also just out of curiousity your spreakers aren't grounded are they, or none of the output wires from the amp or head unit?