DC leakage from power amps

Ok, to try and answer some of your responses, I do like my music fairly loud, but I think I exercise enough restraint to keep it out of the danger range. I listen to a wide variety of music. I can be listening to Holly Cole, and next album could be Robin Trower, or perhaps The Beatles or Stones. Just depends on my mood. I tend to not listen to heavy metal or very hard rock ( although I do like these genres), as the recordings tend to be too poor for my liking, so I guess what I'm saying is that nothing too bombastic is playing.

Erik, you have said that the mid range is the unlikely area where the resistors would be blowing, and I agree 100%, but the reality is that this is exactly where the damage always is. This is what has me baffled. I would expect that if I was overpowering the speakers, the tweeter resistors would go south first.

As for the actual testing with my meter, I do have a decent unit that will measure in the mv range, so no problem there. Should I jump the positive/negative with a resistor to simulate a load? If so, what wattage, and because the Wilson's are rated at nom. 4 ohms, should I use a 4 ohm value?

@jea48 My speaker cables are Siltech 330L spade to spade ends, 2 metre lengths

@herman  If I remember correctly, my meter does indeed have a max hold function, but as I am not at home at the moment, can't check for sure. As the owner of a welding company, your analogy of my amps being capable of arc welding made me chuckle. Good one!!

Thanks you for sending me the link to the Stereophile page, but I must admit that it is a little beyond my technical understanding.

I'm hoping to get home at a decent hour tonight and do some testing. What level of output do you think I should be running my pre-amp at, for safe, yet accurate measurements ?

@gs5556  I may need to add that I never power down any of my solid state gear. Only when I go away on extended holidays. My tube gear goes off after every listening session, and upon powering up, is given at least 45 minutes to warm up.

The Brystons really help keep my heating bill down in the winter!!! LOL Great for toasting marshmallows too :) LOL

@herman  I'm reluctant to do this, as I have a possible left speaker tweeter issue, or perhaps crossover issue. I have removed the tweeter, and have disassembled it. Tonight I will do some testing on it as well. The voice coil looks sound, but I really need to test the integrity of the leads to the binding terminals. So the Maxx's are out of commission for the time being. I do have Watt Puppys as well (yup, I like Wilson) but am reluctant to power them up for fear of damage to them as well. I am more inclined to do a test of the outputs of my amps, to eliminate/confirm dc leakage.

I will be speaking with Jerron at Wilson next week, and also Mike at Bryston. I have had conversations with both guys over the years, and trust their advise. Unfortunately, this being a long weekend, I'll have to wait till Tuesday. I was hoping to get some diagnostics done before next week. I'd really like to get the Puppys into play, if I can determine that the amps are sound. I have sever withdrawal issues when I have no music!!

Your math is appreciated by the way. Pretty simple, and easy to calculate once I get things into play. Perhaps I may surprise myself on what actual power is being applied. 

FYI, the final test inspection spec sheets from Bryston for my amps were both in and around 1247 watts before clipping, into 8 ohm load. A welding we will go LOL!! 

 I can look at all this with a certain amount of levity. as in the big scheme of things, this is small potatoes!!

Thanks for all the advice folks, enjoy your evenings :)

Thanks Ralph. I appreciate your advise greatly.

Cheers

@jea48  I  do indeed have 2 dedicated 20 amp circuits, and am fortunate to have my main panel box in my listening room, in fact, from my panel box to my outlets is a direct vertical drop of approx. 4 ft , and yes #10 awg. None of my power cords are stock. All are AudioQuest NRG-4's, and all are either 3 ft, or 6 ft.

Power out of my conditioners is a rock solid 120v, although I have not checked this under high volume conditions.

It all just may be that I am the culprit here. Herman makes a good point, that it may be louder than I realize. After so many years of working in extremely loud industrial settings (metal fabrication) and add to that my years as a hard rock guitarist, some hearing loss may be more than I realise. I do have a SPL meter, but haven't used it in years. Perhaps I will dig it out of storage and see what actual values are being presented in my room. Will follow up with these readings tomorrow.

Thanks all.......

@geoffkait 

Careful there Geoff you mentioned 3D. Bo might me listening!!!

Problem Solved folks. As some suspected I am the problem. Confirmed last night with my Watt Puppys in play, and my SPL meter.

@atmasphere  Many thanks to you Ralph for taking the time out of your busy schedule over the past couple of days to sort this out with me.

I appreciate all of the others who have posted advice here. This is what our community is all about.

Cheers to you all !!! :)