Edifier T5 Powered Subwoofer 8 Inch 70 Watt With AdjustableBass (Black) - Powerful distortion-free bass - Product Features: - 70W RMS active subwoofer - 8 inch long stroke speaker driver - The 8” driver delivers powerful sound with rich- highly accurate bass. Deep lows don’t have to sound distorted and overblown. - Frequency response from 38Hz - 21mm thickened MDF wooden enclosure - Edifier applies high-quality medium-density fibreboard (MDF) materials that offer reduced cabinet resonance for the cleanest sound around. - Phase and low pass control - Ensures that your subwoofer only plays sounds too low for your speakers to properly output without distortion. Supplement your speakers high and mid-range with bass you can really feel down to the 38Hz range. - RCA Line-in/Line-out (pass through) connections - Automatic stand-by mode - The auto-standby feature ensures the unit is not using up unnecessary power when left idle. Leave the unit plugged in without worrying about driving up your electric bill. - Adjustable Bass and Frequency Bandwidth - Change bass volume on the fly with a convenient knob located on the back panel of the unit. An adjacent knob controls the frequency range of the subwoofer allowing you to raise or lower the frequency where it starts to filter out sound. - Universal switching power supply (100-240V) - Specifications: - DRIVER UNIT: 8 inch bass - TOTAL POWER OUTPUT - RMS 70w - SIGNAL-TO-NOISE RATIO -- ≥85dB (A) - FREQUENCY RESPONSE - 38Hz~200Hz - NOISE LEVEL - ≤25dB(A) - INPUT SENSITIVITY - 50±20mV - AC Universal 100-240V 50/60HZ