Join Date: Jul 2003
Location: Stuart West, Florida
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A lot depends on the level of dynamics you want to achieve and the size and reverberation of the room you are using them in. The Pioneer may be adequite, I'm not familiar with the Pios enough to say one way or another.
Although they are super-efficient Klipsch Reference series tend to become astonishingly better with high quality amplification. I have the same trio of speakers across the front in my dedicated theater which is on the "smallish" side at 13.5'x18'x 9' but is acoustically VERY dead. These are being driven by an Aragon 3005 which is 300wpc, which one would think is a bit of overkill, however, when I substitute a Rotel RMB 1077 (100 wpc or about what the Pio receiever puts out) there is a noticable loss of "low/mid dynamics". The sound actually sounds like it is coming from a smaller speaker.
I do agree with the previous poster that some of that $2000 may be better spent on a second (or better) sub. I've had (actually still have in another system) the HSU 30 Turbo you are using but currently I'm using an SVS Ultra 13 (about $1400) which sonically melds better with the Klipsch.