Hey John,
Yes it is true I love my Coda amps and CP preamp. I'm running two CX amps and one CSX amp to quad amp my Legacy Helix. Bill Duddleston uses Coda amps to voice all his speakers. I've had Mark Levinson 436s, Krell KSA 250s, Acoustat TNTs, Haflers, and several others in my system. None have amazed me like the Codas have.
If I were to upgrade amps I'd look to Coda again and purchase 3 of the 15.0s.
I think you'll have a great sounding, dependable amp and system for years.
Let us know how you like the 15.s.
Steve
(sgr)