MacChicken,

I think your wording was the issue. Your system may be capable of drawing 150A "continuously" for a few seconds with the amps gains set to 100% clipping using sine waves as the audio signal. Set the gains properly and play music and you won't approach 150A continuous draw...ever.

"If you are flammable and have legs, you are never blocking a fire exit" -Mitch Hedberg