New to amps & need help I have Denon Avr 2802 which I will use for now, Mirage OM-7 fronts,OM-C3 Center, OM-R2 Rears & Klipsch KSW-12 sub Do I go with the 755,770 or 7100 or perhaps 5 of 200's quite confussed with all the options

The OM-7's are rated at 6ohm nominal and 4ohm minimum load with a recommended power input of 50W-200W; the OM-C3 and OM-R2 are rated at 8ohm nominal and 4ohm minimum. I'd lean toward the 755 or the 7100. The 7100 would probably be sufficient for your needs and would give you two extra amp channels in case you decided to step up to 7.1 later. The 755 would offer you more power per channel without forcing you to buy extra channels, and if you ever did go to 7.1 you could add a pair of 200's to either drive the rears or (as is more commonly done) take over the mains and let the 755 drive the rest. The 770 or a crate of 200's would work but might be a bit of overkill for your present needs -- unless you are close to pulling the trigger on 7.1 and want the extra power per channel from the 755/770...

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