M-SERIES 1-Channel Digital Mono Terminal Amplifier with SMD technology variable LP filter Subsonic filter RTC (included), RCA and High-Level input with automatic BTL or signal detection and automatic "TURN ON". infinitely adjustable 0-180° Phase shift, up to 90% efficiency 6mm² power cable set (5.5m) 1x200 Watt RMS at 4OHM 1x400 Watt RMS at 2Ohm front plate 80x80 mm installation bore:68mm installation depth:127 mm Suitable for: 1-Channel