Amp question

[boog351]

What would be expected out of a straight 4 pill amp running 4 hg mrf421 at 14.8v, builder suggested an 80w dead key from the amp and it should have a pep of around 800w running a stryker 955 into it.

 

[dave457]

They are a 100w transistor, I'd run it more conservatively 500w

 

[nomadradio]

Here's Motorola's original specs. They call it a 100-Watt PEP part. Your builder is recommending twice that from four parts.

Maybe he wants you to blow it up and come back for another one?

Soon?

73

 

[boog351]

Appreciate the replies nomad and Dave.
The amp isn't mine, a friend of mine has it, and your replies are pretty much what I told him.
I just wanted a little confirmation because I'm not familiar with the 421 hg parts, or obese young man amps.
A quick goog and I saw the originals being 100w pep x4 and I don't know how the hg's compare.
I tested it and saw roughly 450w pep with a 40w radio into it.
He says the builder sent him a video of it swinging 800+w on some digital and bird meters...

 

[sp5it]

With harmonic could be 800 xD

 

[nomadradio]

Sales hype. If he wants 800 Watts he needs eight of those, not four.

73