Profeesional Audio amplifier KSeries 4 Channels Switching AmplifierProfessional Audio amplifier K4-1300 is our new model, 4 channels switching amplifier, using Motorola transistors, good quality and stable performance.MODLE NumberK4-1300 8Ω Stereo power(RMS)4 x 1300 W 4Ω Stereo power (RMS)4 x 2200 W 2Ω Stereo power (RMS)4 x 2500 W 8Ω Bridged power2 x 4400w 4Ω Bridged power2 x 5000 W THD at 1kHz and 1dB below clipping0.10%Signal Noise Ration (Db)110dB FREQUENTY RESPONSE20Hz-25KHz ±0.5dBInput connectorsCombo XLR type, 3pinLink connectorsXLR type, 3pin maleInput Impedance20KΩ Balanced / 10KΩ UnbalancedOutput connectorsspeakon connectors (NEUTRIK)Power Requirement 200-240V 50-60HzDimensions (H x W x D)485x 378 x 89 mmNet Weight (kg)14 Gross Weight (kg)18 ODM & OEM available.