Anyone heard Nuforce Reference 18's


I am interested in reports about the Nuforce Reference 18 mono amps,particularly in comparison with Nuforce Reference 9 V3SE's which I currently am enjoying.
Thanks
Joe
128x128gammajo
Bob in tech support at Nuforce was at CES and informed me the Reference 20 sounds more relaxed than the Reference 18 due to its much larger power supply which can drive much larger speaker's than the 18's with less strain.
Summitav, do you know yet what the upgrade cost is to Ref 18 owners? I would think it would be a percentage of the $1400 not the full amount.