While several people point out that Aragon, McCormack and some other amps would be better, the weak link that I see is the preamp. I'm not familiar with the sound of the CDP, but have heard that it can be very bright, lean and harsh sounding. I have owned an Acurus Audio L-10 preamp, and if its performance (coherent & detailed, but very lean, analytical and a bit harsh...with a ST-140, no less!) is indicative of the Acurus pre's, I'd definitely upgrade that unit. Buy a used A150 amp $350-500, and use the money saved to upgrade the preamp...the amps are a great value. Maybe an inexpensive DAC (Adcom GDA-600/700) to help smooth the "edges" on the CDP.