- Moving Coil to moving magnet transformer
- Raises level of moving Coil cartridges
- Improves sound quality of MC turntables
- Rca I/O
- Preference switch for impedance level.
ROLLS PA550 Preamplifier. Bellari incorporated in 1989 with a clear objective to re-establishing the relevance of ‘made in the USA’ with the highest quality hand built, affordable, audio equipment for regular consumers without bottomless wallets.