About this itemSubwoofer Amplifier and Full-Frequency Mono Amp：Switch to PBTL, M03 is a Full-Frequency Mono amp for driving passive speakers and powered subwoofer. Switch to SUB, M03 is a subwoofer amplifier for diving passive and powered subwoofers.M03 adopts the Texas Instruments TPA3255D2 chip that features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality.High Efficient Power Output up to 200Watt. M03 can provide 150 watts RMS into 4-ohm loads or 120watts to 8-ohm loads. (Note: Package comes with 32V/5A power supply, you need a more powerful power supply to get the MAX power output.Home Hi-Fi Amplifier with Clean Sound Quality. Built-in low pass filter for 20-300Hz subwoofers with SUB frequency control. Great amplifier to driver any bookshelf speaker or subwoofer.What You Get: M03 amp x1, 32V/5A power adapter x1, user manual x1, our worry-free 24-month warranty, and friendly customer service. Subwoofer Amplifier Full-Frequency Mono AmpMini Stereo Audio Amp with SUB Frequency ControlPower Adapter: 32V/5ADC Input Range: 24V-48VTerminating Impedance: 4 - 8 OhmRMS Power Output: RMS 150watt @ 4ohm, RMS 120watt @ 8ohmFull Frequency Response Range: 20Hz-20KHz(± 3db)Bass Frequency Range: 20-200HzInput Sensitivity: ≤ 0.2mVSNR ≥ 106dBTHD ≤0.03% Fosi Audio Exclusive DesignSwitch to PBTL, it's a Full-Frequency Mono amp for driving passive speakers and a powered subwoofer. Switch to SUB, it's a subwoofer amplifier for diving passive and powered subwoofers.High Efficient Power OutputAdopt Texas Instruments TPA3255D2 Chip, MAX power output up to 200Watt, providing 150 watts RMS into 4-ohm loads or 120 watts to 8-ohm loads. Strong internals makes for A lively listen.Safe DC OutletWith a built-in power protection circuit, there are no sparks flying when you plug the power adapter into the amplifier. Safe for use!DIY Your Audio SystemThis amplifier gives you the power and versatility you need to create a professional sound system. Great amp to drive most home bookshelf speakers or subwoofers. Package include:Fosi Audio M03 Amplifier x132V 5A Power Adaptor x1User’s Manual x1 Solid Built Aluminum Alloy EnclosureCurved edges and sleek controls accentuate its unibody design. With truly useful features, and thoughtfully designed premium enclosures.32V/5A Power SupplyFosi Audio M03 amp comes with an energy-efficient and stable power supply which got authoritative certification by many security tests can get an astonishing sound.