12" active moulded speaker, with 5-band EQ, voltage selector(110V/220V, 115V/230V),170W R.M.S/300W peak Features:1. woofer: 12" woofer, 50oz,2. Titanium compression driver, Ti353. Frequency response: 50Hz-20KHz4. SPL(1w/1m): 96dB5. Rated power for inner amplifier: 170W R.M.S/200W peak6. Impedance: 4ohm7. EQ:5-band EQ8. Built-in hole for stand