Massive Audio E4 - Car Audio 4,000 Watt Nano Edge Series, Monoblock Car Amplifier, Bass Boost, 1 Ohm Stable HIGH PERFORMANCE CAR AUDIO AMPLIFIER | The best competition amplifiers for cars in the market! This 12v car amplifier features: 2000 Watts x 1 RMS @ 1 Ohm / 4000 Watts MAX, Freq: 10Hz - 220Hz, 0~12dB, Built-In OEM Line Converter, High Power in Extremely Small Heat Sink, Bass Boost 0~12dB, and Ground Loop Isolator. Our monoblock amplifier for car provides real punch for your car stereos and car subwoofers! SAVE 10% - Buy ANY 2 OF OUR PRODUCTS using Code MAD10OFF. PRODUCES POWERFUL, CLEAN, FULL SOUND | Don't settle for weak sounding and underpowered car subwoofer amplifier. Your car amplifier package and car subwoofer set aren't complete without our monoblock Massive amplifier. Our car audio subwoofer amplifier features: Built-in OEM line converters with RCA inputs that can take a high level speaker signal at up to 10 Volts directly in. DC 5V - 15V Operating Voltage. QUALITY TESTED AND GUARANTEED TO ALWAYS REACH ITS FULL POWER | Hits its full power all the time! That is our guarantee! You don't need to set the gain to low to avoid distortion. It works great and provides high power with low efficiency. Also, by sensing the DC offset of a factory radio it can activate the ATO (Auto Turn On) feature and Next Generation Advanced 5 Way Protection Circuitry. GREAT QUALITY PRODUCT THAT WILL LAST LONGER | Don't settle for underpowered and underwhelming car stereo monoblock amplifier that's weak sounding, not efficient, distorts at high power and terminals that get shorted! With our extra features like Built-in Noise Reduction Circuitry, Auto Sensing Turn On Function, 12V Remote Output for External Devices (Hi-Level Inputs), and Mil Spec Double Sided PCB with SMD Parts ensure you get your money's worth! MASSIVE AUDIO QUALITY GUARANTEED. Since 1999, Massive Audio has been an industry leader in high performance audio products. Massive Audio laid its roots in high quality audio reproduction through in-house engineering and a dedication to customers.