Sound Storm Laboratories EV4.400 4 Channel Car Audio Amplifier - 400 High Output, 2-8 Ohms, High/Low Level Inputs, Hook Up to Subwoofer for Bass

Power - 100 Max x 4 @ 2 Ohms, 50 Max x 4 @ 4 Ohms. Class A/B Topology - Class ‘A’ amplifiers have enormous amount of current flowing through its output transistors with no audio signal. Class ‘B’ amplifiers have no current flowing through its outputs with no audio signal. Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers. Low & High Level Inputs - A low level (RCA) input is measured in voltages. A high level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers. Fixed Low-Pass Crossover - Subwoofers reproduce sound based on a number of different low-range frequencies. Set the switch to the Low Pass mode for optimized bass frequency reproduction. Fixed High-Pass Crossover - Speakers reproduce sound based on high, low or mid-range frequencies. The High-Pass Crossover gears specifically towards “highs” in all size speakers including mid ranges and tweeters. Variable Input Gain Control - The gain control is not for adjusting volume. It simply adjusts the amount of signal that is coming from your receiver and going to your amplifier. Specs - Dimensions: 7.50” x 9” x 1.75”, Weight: 3.41 lbs., Speaker Impedance: 2 to 8 Ohm, THD @ RMS Output: 0.01%, S/N Ratio: 90 dB, Frequency Response: 12 Hz to 22 kHz, Fuse Quantity: 1 15 Amp ATO Blade. Sound Storm Laboratories provides a 6 Year Platinum Online Dealer Warranty for purchases through Amazon.Com. We strongly encourage professional installation of this product to ensure proper functionality