I ran Model 6's with Salons and had great success with Kimber Select 3033. I also ran them with 3038, but the improvement was negligible.
Assuming the voltage sensitivity of the Voice is the same as the Salons, I would inquire about having your Model 2 rewired for mono (i.e., convert it to a Model 6). I'm not certain that this can still be done, however.
Assuming the voltage sensitivity of the Voice is the same as the Salons, I would inquire about having your Model 2 rewired for mono (i.e., convert it to a Model 6). I'm not certain that this can still be done, however.