Axiom Home Page Forums General Discussion Home Theater Parasound Halo Owners ?

I'm thinking 7 Outlaw monoblocks. That way, you reduce the load on the power supply (drastically) since the 7 have separate power supplies. The heat could still be an issue; I'm not sure how those puppies are cooled. But getting it out of one chassis seems like a good idea to me.

That was my suggestion to Outlaw about a week ago, but the tech seemed hesitant, wanted to wait till the 770 issue was resolved. Which kind of makes me wonder if there is more to this heat issue, as in, is the 300 watts @ 4 ohms fully accurate, and is that with all channels driven. In the last few weeks I did find one other 770 owner in Canada which had a more channel problems than I, as he was having several channels shuting down with the thermo protectors, this was last April, and he updated his post this Feb, and has never solved the issue. Seems the 7 mono blocks should work as they offer a package price, but at this point, I'm just not wanting to be the first to try it with the five M80's. I'm not upset with Outlaw, it very well could be I just had a defective 770, what bothered me was the falling back to me running the five M80's, and especially the concern over the rear ones, becasue of the 60 foot runs of 12ga wire. Also wondering if I had talked to Axiom to find out if the 4 ohm rating was accurate, seems my wires, speakers, and banana plugs were more of the issue than a possible problem within the 770. ;-)

Here is a pic of the impedance of the M80s.

Thanks ! Alan gave me an URL for the Outlaw tech, I gave it to him, and think it may have helped, the tech admited he had never actually auditioned any of the Axioms, but had heard good things about them. One of the things he kept wanting me to try was differant speakers, I refused, as I have no similar speakers, and if an amp, any brand, is not going to hande the M80's, then its point less for me to try that possible solution....I'm not giving up even one of my M80's, no way, no how. LOL

The reason I'm leaning towards the 300 watts per channel is that the house is 2,800 square feet. The listening area is actually about 1,100 square feet. The puter room is next to the Axiom area with a large opening, so the sound fills it as well. When running the Axiom system at 100-110db, I'm able to be any where in the house upstaris as well, and have a good sound. Since the solarium is all glass, I can even be out in hte back yard or my workshop and have tunes. Thus the reason for good amps, that can hanlde the Axioms at loud levels for long periods of times, average day the Axioms run 10 to 12 hours with tunes, evening often a few hours with movies. SO, do I need the 300 watts, maybe not, can I use it....YES. <g>

Yes, for good clean sound out in the back yard through a glass wall you will definitely want 300W/channel. The frightening thing is that you probably WILL get good clean sound out in the back yard through a glass wall

Seriously, for anything over 4,000 cubic feet Axiom recommends M80s plus a big honkin' amp, and I think you are pushing 9,000 cubic feet.

Thanks for the vote, now a few more and will have to start making a decision on which brand to go with, and actually its closer to 11,000 cubic feet. We have the outdoor BBQ island and do have a lot of BBQ parties, even in winter here in the valley. With the four 30" square sliders, and the glass door open, the sound out door is very impressive, I had some out door speakers and a sub woffer, but now with the Axiom system, those are going on ebay. I 'am serioulsy considering the Halo A 51, A 21 and the C 2. Of course its four times the Outlaw 950/770 cost, but the speaker budget started out at just $1,200 and ended up at $5,600, so much for budgets I guess. Will apperciate any inputs, can not have to many opinions.

I still say Rotel is your best bet.

An RMB-1075 for the five M80's and a RB-1070 to power the QS8's.

They'll run cool, sound great, and no doubt look a hell of a lot better than those butt ugly Outlaws.

Dennis, in looking at the 770 manual, the spec is 300 watts into 4 ohms, all channels driven, FTC. Among the requirements of the FTC rating is that the amp has to be driven at the full rated power for at least 5 continuous minutes. If they rate it that way you can be reasonably sure that the units rated met the requirements for amplifiers sold in the U.S., otherwise they'd be in violation of the FTC regs. So, although your setup has higher requirements than most, it certainly isn't nearly as severe as the 5 minute FCC test reg.

Whatever the heat issue that you mentioned is exactly, it may well be a problem just with that particular unit. Have you provided more ventilation than the picture with the 950 on top of the 770 shows? Has Outlaw now offered to simply send another 770?

Have you looked at the 7 channel sunfire amps, I don't know if you are looking at a seperate processor, I have their signature 400X5 grand cinema amp. In 2 channel it is amazing, so warm, I run it bi-wired current, and voltage, sounds just like a dedicated 2 channel. I have not budgeted for their cinema 3 or 4 processor, so I use the Yamaha 1500 as a pre/pro. and to pick up the rears (7.1)

Their 200X7 and 400X 7 (signture) amps would be worth looking at, not cheap, but awesome. I am looking at a (maybe slightly used) signature 600x2 2 channel, then will use my existing 400x5 for 7.1, and hopefully add the matching grand cinema 3, or 4, processor when and if it is in the budget.

Don't rule out a single multi-channel amp, as you can see their power ratings are not an issue, my 400x5 runs very cool. This is their 7 channel amp:

Features and Specs
400 watts rms continuous per channel, all channels driven into eight ohms from 20Hz to 20kHz with no more than 0.5% T.H.D.
800 watts rms per channel into four ohms
1600 watts rms per channel into two ohms - time-limited basis
Two output options for the main left and right channels: current source for a warmer, more open tube sound or voltage source for all the tight response this awesome solid state amplifier can deliver
Intrinsic frequency response 1 Hz to 80 kHz
Signal present auto-on switch senses input signal on any channel and automatically powers up
12VDC trigger input with 1/8" mini jacks as well as plug-in screw-terminal strip
Balanced XLR and unbalanced RCA inputs
High-quality gold-plated all metal five-way binding posts
Five-year parts and labor warranty