Yes if a relay in the conditioner is 'welded'. that means too much current was hitting too fast.The rush of current to the MAC, along with your big cord can be the cause.The MAC turn on surge could easily cause this. Particularly of the MAC caps were fully discharged from lack of use for a few days.The turn on surge pulling amps through the big power cord Boom Welded contacts. Your amp is most likely too big for that conditioner.And with the smaller power cord you were just getting by.Try plugging the amp to the wall.
Power Cord gauge, Could it be the problem
I am far from being an electrician
I trade in a M2Tech EVO Clock against a PS Audio AC 12 power cord at HiFi Heaven.
It is a 8 AWG gage cord.
I thought , the bigger - the better. I had a good price for the clock , so why not a good power cord.
When l connected my McIntosh power amp in a power conditioner ( APC H15 ) , the power conditioner went out of order : ´´ one of the inner relays is welded ´´ appears on the screen.
After chatting with the service department ,APC will give me an other one.
I have read on the web that this ´´ inner relays welded ´´ is not rare.
I connected my power amp with that cord in the wall socket and every thing is fine.
Now, I am afraid to reconnect the cable to the new power conditioner when I will receive it.
Could it be because of the cord gage vs the conditioner capacity ?
My amp was connected to the ACP before with McIntosh power cord without probleme.
Maybe , a short class about power cords gage , would be OK
I have read many many post here without finding an explanation.
Thanks
I trade in a M2Tech EVO Clock against a PS Audio AC 12 power cord at HiFi Heaven.
It is a 8 AWG gage cord.
I thought , the bigger - the better. I had a good price for the clock , so why not a good power cord.
When l connected my McIntosh power amp in a power conditioner ( APC H15 ) , the power conditioner went out of order : ´´ one of the inner relays is welded ´´ appears on the screen.
After chatting with the service department ,APC will give me an other one.
I have read on the web that this ´´ inner relays welded ´´ is not rare.
I connected my power amp with that cord in the wall socket and every thing is fine.
Now, I am afraid to reconnect the cable to the new power conditioner when I will receive it.
Could it be because of the cord gage vs the conditioner capacity ?
My amp was connected to the ACP before with McIntosh power cord without probleme.
Maybe , a short class about power cords gage , would be OK
I have read many many post here without finding an explanation.
Thanks