Ready Colour: Black AUDIO SPECIFICATIONS *FREQUENCY RANGE: 52 - 20,000 Hz *ADJUSTABLE BASS AND TREMBLE CONTROLS: Fine tune your music using the analogue controls on your speaker *MAXIMUM SOUND PRESSURE LEVEL: 100.4 dB SPL @ 1 m *CABINET PRINCIPLE: Bass-reflex *POWER AMPLIFIERS: One 20 Watt Class D amplifier for the woofer Two 8 Watt Class D ampl...