We have had recent hot debates regarding the 990 compared to Anthem's/Lexicons/etc...

This is a very interesting comparison of the 990 to the AVM-20.

http://www.avsforum.com/avs-vb/showthread.php?p=5748243#post5748243

I highly suggest you to read and contribute your comparison findings on this thread.
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Sony HS51 PJ
Outlaw 990 pre/pro
Outlaw 7100 amp
Denon DVD-2910
M&K LCR750
M&K Surround-55 tripole
Dual M&K VX-1250
Outlaw PCAs
Blue Jeans Component and HDMI
Panamax 5500