Anyone heard Nuforce Reference 18's

Yes they have now decided to changed their path on the upgrade. So Ref 18 owners will now have an upgrade path, or they can sell and purchase the new Ref 20.

Do you know if it will be a larger box.

Update from CES..Nuforce has informed me their new Reference 20 mono amp was premiered at CES. It look's identical to the Reference 18. Larger power supply. The rating is 360 watts rms @ 8ohms and 420 watts rms @ 4ohms. Late February/mid-March release date. Price is confirmed at $ 9K a pair.

Any news or links on how they sounded or compared to others?

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.