Question about 755 internals?

Wasn't in the 755 "specs" pop-up window...

How big are the transformers? Are they equally split between the 5 channels, or does 1 transformer handle 2 channels, and the other handle the other 3 channels? How much total capacitance? How much dynamic headroom?

Just trying to compare to another 5 channel amp I'm looking at.

Thanks!


[This message has been edited by Kevin C Brown (edited November 22, 2002).]

If I remember correctly, one is a bit bigger (more powerful) than the other so it handles 3 channels while the other handles two. I would guess that the two would be the mains and the three would handle the center and surrounds. I think the 770 has two slightly different sized transformers too, one handles four channels and the other handles 3

Ahh, that's why I'm asking. If you go to the 755 product page, Gallery, it's really tough to tell if they are the same size or not (the left one *might* be bigger)...


OK, I found one number in the http://www.hometheatersound.com/equipment/outlaw_755.htm review from the other thread: "22,600 microfarads of capacitance per channel".

Hmm, the "other" amp I'm looking at is (only) 46,000 uF total, and weighs about 50 lbs. (The 755 is 80 lbs...) Wow. More is better, right? Hee, hee.


[This message has been edited by Kevin C Brown (edited November 22, 2002).]

Hmm, I always wondered... why don't they say 22.6 millifarads? Seems more logical to me. The 755 has 113 millifarads total capacitance. The 770 has 158.

------------------
Matthew J. Hill
matt@idsi.net

"millifarads" doesn't seem to roll off the tongue as well as "microfarads", but it could be my speech impediment

Okay, then, how about this: the 755 has .113 farads total capacitance and the 770 has .158.

------------------
Matthew J. Hill
matt@idsi.net

Hmm ok.. let's pretend a 755 will be driving the center channel and the surrounds only... Should the surrounds (5.1 rears) be plugged into the front L+R and the surround rears and center share the bigger transformer?

that would make sense to me since the rear surrounds are less "busy" than the center so that would leave more power for the center....

Sounds like a good plan to me...

------------------
gonk -- Saloon Links | Pre/Pro Comparison Chart | 950 Review

Given the reserves this monster has I doubt it matters one way or the other. Even if the caps are shared (which they may not be) the PS shouldn't have any modulation issues the amp couldn't deal with easily under a reasonable load. YMMV.

I was looking through the 755 threads and found this oldie but goodie. Funny in that I'm again looking at the 755.

Have an Acurus A200 + A200x5 and have liked that combo for a year.

Looking at mating the 755 with a Bryston 4b-st.

Has always been in the back of my mind that the Acurus A200x5 weighs about 48 odd lbs while the 755 is 80 lbs. There was another thread about power being delivered to all channels simultaneously, and I've got to believe that you get something for that extra weight in the Outlaw...

I knew that the 750 was made on ATI's production line. I'm assuming that the 755 and 770 are the same?

I once ask Outlaw tech support if the channel labeling on the 770 was for technical reasons. The response, while not technically revealing of power supply detail, was that the labeling was for convenience only.