I think it has to be. The 900/5 has a bit of a reputation for underperforming relative to expectation... Not that it doesn't meet spec, I don't know, but it may not exceed spec by as much. To jam 900 watts and 5 channels into the same form factor, SOMETHING had to give...
musicar northwest portland or musicarnw.com
Web site migration complete, still repairing problems. Sorry!