Model BD3200 Aluminium heat sink 3000Wrms 2 channel Mono 1Ohm Load: 2x1500w 2Ohm Load: 3000w or 2x950w 4Ohm Load: 1800W or 2*600W 1800w or 2x600w Features Features Input Level: 0.2-5v Frequency Response: 8-180Hz LPF: 40-180HZ SubSonic Filter: 5-50Hz BassBoost Frequency: 30-80Hz BassBoost Level: 0-12dB THD at 4Ohm load 30% Rated Power: <0.2% S/N Ratio: >70dB Best Efficiecy: 2x1ohm or 1x2 ohm Minimum Load: Optional Remote: YES High Level Input: NA Bridgable with same amplifier: NA Overload protect System: YES ShortCircuit Test at max power: PASS Overheat protect temperature 80C/176F Components & PCB: SMT&Double side board Transparent Isolation Connector: YES Dimension (mm): H104mmxW228mmxL376mm