It will be a very good combo for hitting close to 125dB peaks in your HT room! Unless you use a huge room, I suspect it would be almost impossible to tell a difference between the HCA-2205AT, the HCA-1205AT, or even the HCA-855A amps with those speakers.
In a typical/moderately-sized room, using 5 102dB/w/m speakers, a 10 watt per channel amp can produce 112dB peaks.
I have the Rotel, Klipsch reference speakers, and a Parasound 1205A amp. The warmth and majesty of the Parasound amp pairs up wonderfully with the Klipsch speakers. A lot of people mate Klipsch with Parasound for just this reason. As for the 2205, obviously you don't need that much power as one watt will drive the things into reference, but, remember, you may change your speakers down the line and, depending on what you get, that extra power might come in handy one day. Power amps can last a long time and don't forget that Parasounds are warranteed for 10 yeears.
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