I use the Behringer A500 2 channel amp for my second zone for my out side and it has independent output controls. I got it new for 180 bucks and it is now listing any where from 165 - 200. Not sure about using a sub with that amp but is does a great job.
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Outlaw 990/7700
SVS 20-39 PC +
SVS MTS-01 towers, MCS-01 center, MBS-01 surrounds
Behringer A500
Samsung PN58A650, DirecTV HR-20 700
Sony CDP-545, Phillips CDR 765
Oppo BDP-93, Panasonic DMR E515
Technics SL-DL5
Squeezebox 3
Remote Harmony One