I've had the 1050 for a couple of months and I am highly pleased with it aside from the fact that it is clipping out on me at "semi-high" volumes. It auto-powers off at a setting of 40 with any type of sudden noise from the source material such as the horns in the Phanton Menace opening.

I'm using DCM KX-212 for the left and right, DCM surrounds for the left and right rear, and the center channel I'm running from the preamp output to the input of my Pioneer Pro 610 TV. I'm using a Klipsch 12" powered sub.

The speakers are listed at 6 ohm. I've tryed 4 ohm and 8 ohm to no avail. I've played with the trim settings and cross over to no avail.

My DCM are efficient to a rate of something like 98Db/W. So they shouldn't require a great amount of wattage to produce an acceptable volume level.

Any thoughts as to what my problem might be?

Short of any insights, I'm assuming that the thing just doesn't have the power to drive my speakers and I'll need to add the dedicated amp to my component collection.