... and improving the adaptation ability to the engineering applications;3.Two-way crossover design, special and automatical protection circuit system ... , KTV, clubs etc. entertainment venues Product Parameters: ModelDF-312System12" Two-way Passive Full RangeFrequency Response60Hz-20kHz ±3dBRated Power250W, 1000W PeakSensitivity ... CTNN.W: 25.2kg, G.W: 28.5kg 12" Two-way Passive hi-fi digital sound system