Originally Posted by strindl
For the normal user, an XPA-5 is fine being used in two channel mode ...HOWEVER...if you are someone who really pushes your amp in two channel mode to the limit on a regular basis, an XPA-5 is really not the right choice . While the power supply is capable of providing plenty of juice to those two channels...it does have more storage capacitence than an XPA-2 after all....you are pushing all of that power through 6 output devices per channel instead of the 12 per side in the XPA-2. That's probably not what the designers intended.
Well, I certainly hope the XPA-5 does not have the flaws you imply. I would not suggest it to anyone if it did.
While it's never good to drive you amp to the limit, it's the job of the amp maker to prevent over current conditions.
While I can't prove the XPA-5 is perfectly adequate for his uses, I don't think you can prove it's not, unless you have the service manual and have figured out how the protection circuits work, what the supply voltage is, what the limits are on the output devices, etc.
You would have to prove the supply voltage will not be limited, and is at it's limits dangerous to the output devices. A horrible design if true.