Subwoofer: 30cm / 12″ Max Power: 1400 Watt Continuous power output: 400 W Frequency response: 22 Hz – 1,6 kHz Sensitivity: 87 dB impedance: 4 Ω Woofer material: IMPP Weight: 3,55 kg Amplifier: Channel(s): 2 / 1 RCA terminals: Kyllä LPF: Yes Maximum power: 2 x 170W (4Ω) 2 x 250W (2Ω) 500W bridge Continuous Power Output: 2 x 60W RMS (4Ω) 2 x 95W RMS (2Ω) 1 x 190W RMS (4Ω ) Input level control: RCA (0,3V – 6,5V) SP (3,0V – 26V) weight: 1,4 kg Speaker line input sensor: yes.