SOUND STORM 200W 2 Channels Amplifier Brand: Soundstorm Features: Variable input gain control Power and protection LED indicators Line and speaker level inputs Damping factor 125+ Type: Petra RMS Power: 50W x 2 @ 4 ohm Frequency Response: 12Hz - 22KHz THD: 0.01% SNR: 90 dB Built-in Crossover: Yes