Is there a chance you could bring the amp to a friend's/ relative's house for testing purposes??

As I have mentioned in other posts, I have had amp hum at certain times of the day...all told, maybe about 1% of my listening or TV viewing (and its at a very predictable time of the day-I sometimes go week's at a time without hum). When I first bought the 7500, I tried everything to track it down..no luck. Who knows, the frequency of it happening since then has greatly diminished. I know another time when the hum reappeared, it turned out to be a faulty old desk lamp that must of been on the same circuit.
As I said in other post, I really believe it originates with the power grid (its a very old neighborhood/no upgrades in line transmission).
I do have DIRECTV; there is a ground wire outside the house, i.e., that I would assume there is a ground rod associated with that wire.

I would really try and move the amp to another location for testing purposes.....

I would do the inspection at least to get an idea of the scope of the repair. I saw a review of a Yamaha Aventage reciever and they wrote about Yamaha installing a fifth foot under their torroidal transformer because the weight was a concern. Maybe you could temporarily install a piece of wood or rubber of the correct thickness to prop up the middle under the transformers.

Up early today
Just uncovered the 7700.
Pretty cool!
Wish I knew what I was looking at haha. Have to lighten up a bit.
I did what i would call routine inspection and did not fine any LOSE parts.

I called the electronic repair shop that I have dealt with previously and spoke to the owner about my problem. Off course he did reccomend NOT doing my inspection saying I could make matters worse. I am bringing it in today. He told me he will be able to evaluate the 7700 this week maybe Thursday. On the phone he told me it sounds like a power source problem but he would have to look at it.
I am bummed especially if I do not get this back in time for the Super Bowl. Unfortunately it is out of my hands.
I will get back to everyone as soon as I get any updates.

I do appreciate everyone's input on this subject and I really was hoping to fine the problem myself.

Does anyone know if it is a part issue can the service shop get parts from Outlaw and if not would they be able to get the same quality parts from somewhere else?

Thanks

If it's a part issue and the the shop is a good as you say then they should be able to pull the part number off the offending part and get the exact replacement from a distributor or, in some instances, directly from the manufacturer.

Unless it's a custom part with a sole source agreement, of course...

The likely direct source of parts would be ATI since they built the amp for Outlaw. Keep us posted as to progress and what the shop finds. I had my 7125 repaired by Outlaw several years ago and it was back within 10 days. Your local shop should be able to match that I would think.

Just dropped the monster (7700) off at 12:30 EST. They said they should be able to look at it tomorrow. I asked for the chances of it being fixed by Super Bowl Sunday and they said I should have it "way before that".
We will see.
I will kept you guys up to date.
I am really curious as to what the problem is with the 7700. Just as anxious to hear that information as I am to getting the amp back and on-line.

Hopefully it is something simple. If it is a delaminated transformer core it should be a simple repair. Did you ever notice any noise in your speakers?

No XM. The humming was strictly from the speaker.
I am hoping that I hear from the repair shop by tomorrow since he said he would probably be evaluating it today.

RS did you mean strictly from the amp?

Sorry XM.
I just saw this.
The hum was strictly from the AMP.
They have had the 7700 since Tuesday at 10 am. They told me that they would for sure be evaluating it the next day (Wednesday). This is Friday and I have not heard anything. I intend to speak to them today at High Noon.

Will keep you in the loop.
Thank you for your interest.