BAT stuff and Cables

Mejames is right on the money I think BAT added RCA connections for ease of use. Having had and still have BAT products, they sound better run balanced.

Simply put it was designed to be used balanced and using it unbalanced is a compromise for the intendid use. When I tried some single ended cables I noticed, lower dynamics, decreased warmth(it sounded cold and sterile), it lacked the sense of control in particular at lower levels(aka ease of presentation). I am sure there are other changes it is possible it did something better, but to me what ever that may have been was not worth all that was lost so I didn't spend a lot of time trying to make it work.

4yanx- I wouldn't say it is a poor choice, I think there preamps are a great value in there respected price ranges. It would function better balanced, how ever if running balanced simply isn't an option, what choice do you have, its not as though the unit is not going to work, its just not optimal. In a case like yours the only sure bet would be to try it and see, we could go back and forth but the only way to know if its right for you is to try it and see. Wish I could offer more help for your particular problem.