New B&K Amp Blows Circuit

The dealer just delivered a new B&K 200w/5 channel amp to my house. The first one blew the circuit breaker on the line several times and then blew its own fuse. The factor sent a new one but insisted I install a new dedicated 20amp line. Even with a dedicated line, the new amp blows the 20a breaker on power up. Has anybody heard of this?
You might have other loads on your line and this is a possible reason for the breaker tripping. A dedicated line would definately be in order. Did you install a dedicated line? Did anyone mention it might be better to put in a 30a. line? What does B&K recommend? If they say a 20a would be enough and the problem persists then it must be something w/the amp or your wiring. I personally would install a 30a dedicated line, but I do not know the specifics on your amp. Just my opinion, Bill.
Sounds like a job for a variac, a line splitter, and an "amp clamp".