There is an XPA-3 on sale here for $500, a very good deal...
http://app.audiogon.com/listings/emotiva-awesome-xpa-3-three-channel-amplifier-super-pow
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http://app.audiogon.com/listings/emotiva-awesome-xpa-3-three-channel-amplifier-super-pow
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amp for b&w 804 "s" with htm4 "s" 200 watts....