Is this a mistake?

[ZIPPO]

I was looking at the power ratings for the Onkyo TX-NR807 receiver in this review( http://www.hometheatermag.com/receiv...ver/index.html ) & saw this:

Onkyo TX-NR807 A/V Receiver:

HT Labs Measures
Five channels driven continuously into 8-ohm loads:
0.1% distortion at 105.5 watts
1% distortion at 122.0 watts

Seven channels driven continuously into 8-ohm loads:
0.1% distortion at 29.9 watts
1% distortion at 33.0 watts

Traditional Look, Smart Ergonomics
"The TX-NR807 boasts 135 watts into 8 ohms with two channels driven, according to the spec sheet. As usual, see our measurements."

Seems like a pretty big drop off for a 135W/ch THX Select2 certified receiver.