Axiom Home Page Forums General Discussion Home Theater Outlaws & Five M80's Conclusion (long post)

I should not post well waking up, I did not take your post as saying I was, I thought I had sent the post not as a reply to your post, someone clicked the wrong button. ;-)

I understand . I'm still working on my first cup of coffee. I just didn't want you to get the wrong impression. I feel bad for you and don't think anyone should have to go through what you have. I'm very worried now because all of my Outlaw stuff is over a year old and I could never return it now if I needed to.

You should have no worries, seems you are running the same Axiom speaker set up I started with, and the problem started when some fool decided to start running the system at 100 - 110 db so he could enjoy his tunes any where in the neighbor hood, and started addding more M80's.

I had a similar problem a year ago. I called Outlaw and they told me that I needed a dedicated 20 Amp circuit for the 755. At first I thought it B.S. but I tried anyway. The good thing is that it worked.

Yup, but when I was asked that, told them that becasue of the $40k computer room, that when the house was built in 2000, I had a whole house surge protector installed, and I have more dedicated circuits then I want to think about. The HT system has two 20 amp clean circuits, so I really doubted that was a possible problem, think that is when it went back the Axioms being the problem. <g>

If you pick up the B&K, let us know how it is.
I've always liked their amplifiers <drool >...

Tom

You have probably seen this, but here's another post with similar problems on a 770.

"Is it common for the 770 to cut out? I have only started to use my 950/770 recently, maybe 3 or 4 hours of use since I hooked them up, both new. I have it connected to 2 Paradigm Studio 100's, a 570 center, and 4 ADP Studio surrounds. It seems that it was running warm at nominal levels, then when I played less then 5 minutes of louder levels, it cut out. I let it sit for a few minutes,and then it cut out again after maybe 2 minutes of loud playing. I had to reset the switch in the back both times. I have it in a rack with about 8" of clearance above it. Does it need a fan on it all the time? I am shocked that it will not handle this level, as it wasn't loud enough to distort. Does this problem occur for anyone else? "

The main suggestions were :

- strand shorts in the speaker cables
- pre-amp putting out HF oscillations & overdriving the amp
- speaker impedence wacky

In this case the problems happened when listening to loud music but not when listening to movies. Problems are still there as of a couple of weeks ago. The owner lives in Canada and was concerned about the costs of shipping back to the factory for repair.

http://ubb.outlawaudio.com/ubb/ultimatebb.php?ubb=get_topic;f=16;t=000106

You've already sent the amp back, right ? If not, my next thought would be to put the rubber feet on blocks (or Habitant soup cans ) to get more space below the amp and better airflow up through the heat sinks. The feet on the 770 are big (an inch or so) but that doesn't seem like enough to convection-cool when outputting close to 2000 watts.

My personal opinion is that with the amp sitting on the feet Outlaw provides there just isn't enough airflow to keep everything cool with a bunch of 4 ohm speakers. I bet that Outlaw tests with the amp in some kind of rack that has an open bottom -- not to "cheat" but just because that's the way the lab is set up.

I bet in three months you will have the first Outlaw 770+ "Bigfoot" in your house -- if Outlaw is smart you will.

I wonder how these are???? http://www.norh.com/products/leamp2/index.html

Yes, that is the post that I was refering to, and I may have said this before in this post, if I did, sorry for repeating. ;-)

short strands - I purchased 300' of the Axiom cable, have checked and re-checked with meter, and at the request of Outlaw, even installed 28 banana plugs to eliminate a wire touching any where, so I am sure the wire is not an issue at this point.

950 issue - at thier request, everything was disconnted from the 770, left on for twice the 4 hours they requested, no warmer than usual.

speaker inpendence - this is what they keep saying has to be the issue, and I have tested as well as I can, so unless I accpet the fact that I have five screwed up M80's, this is not the problem.

And like you, I even used some spacers, to the point of having the 770 seven to eight inches off of the marble tile floor, it made no differace, the themo on left rear amp would still kick after 20 minutes.

It has been frustrating, I can not out think the amp, it beats me every time, no matter what I try. :-)

Yes, the Outlaws are still here, waiting for the return shipping labels to arrive by mail. So if anyone can think of something I have not tried, I'm willing to try anything, just post it and I'll give it a go.


Off to audition B&K, will report back on my thoughts.

You probably tried already... Does the 770 cut out no matter what channel you connect from the 950 to the 770? For example: try connecting a different output from the 950( say the front right) to the offending channel on the 770.
It would be nice if it was just the 950 and not the amp.