It does help, thanks Lewinskih01.
At this point I've committed to the RB-1070 (from a seller on this site). Btw - a local dealer advised that the 1070 and 1080 are being discontinued in favor of the new RB-1500 series.
The RB-1080 (2 x 200 wpc) retailed for $1000 while the new RB-1582 (also 2 x 200 wpc) retails for $1500. I'm interested to hear how they compare.