BOSS Audio Systems R1004 Riot Series Car Audio Amplifier - 400 High Output, 4 Channel, 2/8 Ohm, High/Low Level Inputs, Full Range, Hook Up To Stereo and Subwoofer, Class A/B, IC (Integrated Circuit)

BOSS Audio Systems R1004 Riot Series Car Audio Amplifier - 400 High Output, 4 Channel, 2/8 Ohm, High/Low Level Inputs, Full Range, Hook Up To Stereo and Subwoofer, Class A/B, IC (Integrated Circuit) 4 Channel Car Amplifier - 400 Watts, Full Range, Class A/B, 2 Ohm Stable, IC (Integrated Circuit)

Power - 100 Watts Max x 4 @2-Ohms, 50 Watts 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 Variable 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 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 Specs - Dimensions: 7.8” x 9” x 2”, Weight: 3.1 lbs. Warranty - BOSS Audio Systems provides a powerful 6-year Platinum Online Dealer Warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality MODEL 400W High Output 4 Channel Amplifier Up to 75 W X 4 RMS @ 2 ohm Up to 38 W X 4 RMS @ 4 ohm Full Range, Class A/B, High and Low Level Inputs, Dimensions: 7.75" L x 9" W x 2" H