Anyone heard Nuforce Reference 18's

I wonder why they did not discontinue the 18? Is the 20 that much better? I have never understood what nuforce does with all the different amps they build.

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?