ATI Amplifiers

[supereri]

http://www.ati-amp.com/

Just saw these in a magazine, and was wondering if anyone knew about them? What kind of chip are they running? It looks like each amplifier module has at least 6 chips attached to the heatsink. There are some other good "guts shots" of the other models on there as well.

An externally hosted image should be here but it was not working when we last tested it.

 

[JCoffey]

GOD I want one of those amps. Oooo, and its one of the new 7 channel ones too.......

 

[bigparsnip]

High-current, bi-polar output transistors with active bias circuits result in effortless operation.

So, I guess these don't use chip amps, just good old bi-polar transistors, which is why you can see a lot of them attached to the heatsink.

But, on another note, they do look good, and have given me another idea for an amp project (Doh, not another one).

 

[Duo]

This loos like a very interesting transistor amp design. I like the looks. Being six transistors per sink and seemingly, six per channel, I bet for it's size it can push some serious power for a HT amplifier.

It also looks like it would get hot in there after a while if there's no fan. With the toroids in the front is a neat design. I've never seen one like that before. I'll bet it's heavy too.

 

[supereri]

Ok, my bad. I thought they were chip amps when I saw this diagram. Looked like a bridged setup to me.

http://www.ati-amp.com/diffamps.html

An externally hosted image should be here but it was not working when we last tested it.

 

[millwood]

it cannot sound good. It uses the inferior non-inverting design!

🙂

 

[millwood]

the pricing is actually quite interesting. the model shown here can be sold in modules, at $200 each. That's $200 for a fully assembled, tested dual channel (ATI modules are fully differential. So each module has actually two amp modules working 180 degrees opposite of each other), good for 180wrms into 8ohms and 0.03% thd/im 20hz - 20khz.

Isn't that a bargain considering how much people are paying for kits?

 

[indoubt]

If I'm not mistaken those amps are used by the originator of the Orion loudspeakers for his active set-up. (linkwitz lab)