4-Channel Class A/B Bi-Polar Amplifier, incl. external digital volt meter PMA-100V, 4x 75 Watts RMS @ 4 Ohm Stereo, 4x 120 Watts RMS @ 2 Ohm Stereo, 2x 230 Watts RMS @ 4 Ohm Mono, frequence response: 5Hz - 50kHz, THD: 0,03%, S/N >100dB, Var. 24dB Lowpass/Highpass 50Hz - 250Hz, Var. Bass Boost 0 - 18dB bei 45Hz, Subsonic Filter 20Hz - 60Hz, Phase Shift 0 - 180°, sensitivity: 0,2V - 8V, RCA-output, cooling fan, incl. external volt meter PMA100V and bass remote PMA10B, Tiffany-Style, RCA jacks, hour meter, dimensions (LxWxH): 210 x 667 x 546mm