Any experience with hard amplifier startup.

This is a problem that I expienced last night for the 1st time with a pair of monoblocks.

I don't expect anybody to have these amps.....there were only maybe 12 pairs sold.

I use these Platinum model two's to run my subwoofer....they are really high powered (35 amp breaker ea) and have a soft start protection circuit. I am waiting on a new rack to rearrange my system but I was going nuts being with out music for 3 weeks.
I received my longer speaker cables and decided to try them out.....hooking up these amps to my main speakers....flipped the right channel on....no problem....left got a lound hum....kinda concerned. So I checked all connections and routing of cables....same lound hum....then removed my sattelite connection bingo no lound hum....but the amp started buzzing that increased in volume..so right before the 2nd all fine light came on I checkened out and hit the off switch. The 20 amp dedicated circuit breaker tripped. To make a long story short....I replaced the IC's from amp to the preamp and aftermarket power cords going back to the original 15 amp rated PC's and no problem....the amp still has a slight buzz but powers up fine. I do get a low hum from both speakers.

Any ideas......