The Pass amps are certainly grand, but I'm not sure they are the ideal mates for the c-j pre you are using. According to the respective websites; the c-j CT-5 has a somewhat high output impedance of 800 Ohms, and the Pass 250.5 has input impedance of 30/20 KOhms. Furthermore, the Pass amps have been optimized for balanced input, and no c-j offers balanced inputs or outputs. Seems to me that much of the expense put into the Pass would be wasted.
On the other hand, I'm a big believer in working backwards from room to speaker to amp, etc.. Perhaps the Pass amp is the ticket towards Nirvana for you, and reconsidering your pre- might be an option.
On the other hand, I'm a big believer in working backwards from room to speaker to amp, etc.. Perhaps the Pass amp is the ticket towards Nirvana for you, and reconsidering your pre- might be an option.