The CJ PV-10 is fine. Other choices not mentioned above might be an Anthem Pre1, Pre1L, or Pre2L if you want tubes, or a CJ solid state. You won't lose any bass or air with the Anthems. Very extended frequency response, very dynamic, very nice. Same with the CJ solid state. The PV-10 is a little warmer and softer. I had an AI M3a, and sold it because (1) I liked the Anthem Pre2L better (2) tubes don't last as long in the AI, and (3) the as tested output impedance of the AI was close to 2kohms, which could lead to a low bass roll-off with amps with low input impedance (one of mine has 10kohm input impedance).
Paul