Bi-amplified Studio Monitor with Magnetically-Shielded 5" Low Frequency Transducer and 1" Soft-Dome High Frequency Transducer and Image Control Wave Guide. Class-D 41 Watt RMS Amplifier for LF, and 41 Watt RMS Amplifier for HF. Balanced XLR and 1/4 Inch TRS Inputs with Dented Level Control, HF and LF Trim Controls. LSR305 Includes US Power Cord. LSR305/230 Includes international Power Cord.