SubA150 This amplifier is designed as a stand alone compact amplifier that allows custom home installation to have a powerful high efficiency amplifications while fitting in small places. The SUBA150 comes with a set of standard ears that allow the user to install it in a standard single rack mount. Whether you are looking to power a subwoofer or a tactile transducer, the SUBA150 is guaranteed to deliver. The SUBA150 is powered by a switching regulated power supply PWM. It delivers a steady and regulated output, delivering a linear amplification to your load. Only through linear amplification do you get the chance to deliver accuracy in amplifications. The amplifier possesses an efficient switching power supply with stability at 8 and 4 ohms. These amplifiers will deliver clean accurate sound with massive damping factor. Technical Specifications:- Frequency Response 28Hz 175Hz Power Line Voltage 110-120C~60Hz / 180 WATTS Dimensions (HxWxD) 2” X 9” X 9” Weight 4.5 Lbs Finish Black Input Sensitivity For Full Output: 240mVrms from left input with volume control at 0dB, 90mVrms with volume control fully clockwise. Input Impedance: 8.2 kilo-Ohm Line-level inputs, 32-Ohm Speaker-level inputs Internal System Gain: 42dB from left input jack to speaker with the Bass Level control at 0dB , 54dB with the control fully clockwise. Output Power into 4 ohm load 280 WRMS Output Power into 8 ohm load 140 WRMS