Doug,
I am very much interested in your findings as well. I have the Yamaha 5790 which is similar to the 2500 and have been on the fence as well. Please give us a detailed report of how the 990 sounds in comparison.
Thanks,
Ryan
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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