Hi Bill,

No problem.

I'm using Room EQ Wizzard software (free) and a USB sound card connected to my laptop to generate the frequency sweeps. I was using the 2-channel analog output of the sound card, sent into the L&R of the 6-channel input.

I'm using a cheap Nady SPL meter to record the sound levels.

I didn't compare the digital input, but my sound card has a digital output, so will try and report back.

The speakers are set to small. When large, they start to drop off at about 45 Hz. I will post some graphs later when I get home. It's pretty cool stuff actually.

I'm not sure how yours measured differently. My data could be wrong, but the fact that a) the curve matched so well with the 100/120 curves, and b) that the this review also mentions the 970 is crossed over at 110, makes me think it's most likely correct.