Profile amp?

[Guest]

Archived from groups: rec.audio.tech (More info?)

I have a Profile 440sx 4 channel amp, I hooked up a 2ohm load bridged.
It rocked for about 30 seconds and went out. It wasn't extremely hot
and nothing looks burnt inside. Where do I start repair??

 

[Guest]

Archived from groups: rec.audio.tech (More info?)

Start by troubleshooting the output stage, and work back. Most likely the
output stage and its related drivers may be damaged. You may be luck, and it
is just a blown fuse, or a blown fuse resistor, or something like that.

If the load was excessive, the output stage can be damaged before it has
time to get hot.

Why would you put a 2 ohm load on an amp that was designed for 8 ohms?

--

JANA
_____


<wired747@sbcglobal.net> wrote in message
news:1115695835.031529.16560@o13g2000cwo.googlegroups.com...
I have a Profile 440sx 4 channel amp, I hooked up a 2ohm load bridged.
It rocked for about 30 seconds and went out. It wasn't extremely hot
and nothing looks burnt inside. Where do I start repair??

 

[Guest]

Archived from groups: rec.audio.tech (More info?)

Believe me, I'me learning from my mistakes!! Actually I hooked up a 2
ohm and a 4ohm in parallel, bridged.

 

[Guest]

Archived from groups: rec.audio.tech (More info?)

"wired747" <wired747@sbcglobal.net> wrote in message
news:1115755509.183647.222430@f14g2000cwb.googlegroups.com...
> Believe me, I'me learning from my mistakes!! Actually I hooked up a 2
> ohm and a 4ohm in parallel, bridged.
>

That's less than 2 ohms AND bridging the amp will cause each channel to see
1/2 load impedance. So each channel was seeing less than 1 ohm. Not good.

Chad