SubZero SZS-P15 15 Passive PA Speaker. Input: 2 Pole Twist Lock Speaker Connection. Output: 2 Pole Twist Lock Speaker Connection. Speaker Dimension: 15 Inch. Tweeter: 1 Inch Compression Driver. Power: 150W RMS / 200W Peak / 600W Max. Nominal Impedance: 8 Ohm. Crossover: Passive at 3.0KHz. Frequency Response: 55Hz – 19KHz +/-3dB. Cabinet Material: PP Hard Plastic. Dimensions: 480 x 740 x 395mm. SubZero SZS-P15A 15 Active PA Speaker with Digital Media Player. Mic Input: 2 x XLR or Stereo Jack. Line Input: Stereo RCA. Line Output: Stereo RCA. Powered Output: Two Pole Speaker Out. Tone Control: 2 Band EQ. Media Player: Bluetooth, SD Card, USB Stick. Power: 150W RMS / 200W Peak / 600W.