BOSS Audio Systems R4002 Riot Series Car Audio Amplifier — 400 Max x 2 / 800 Max Bridged High Output

Overview: The BOSS Audio Systems R4002 Riot Series is a MOSFET-powered, Class A/B full-range car amplifier designed to drive both speakers and subwoofers. Its topology and power stage provide clean, dependable output for a variety of in-car audio setups. Power Ratings: - 400 Max x 2 @ 2 Ohms - 200 Max x 2 @ 4 Ohms - 800 Max Bridged x 1 @ 4 Ohms Full Range Capability: This is a full range amplifier, so you can run conventional speakers and also feed subwoofers without needing a separate mono sub amp. Inputs and Gain: - Low & High Level Inputs: Accepts low-level (RCA) inputs, which are measured in voltages, as well as high-level (+/- wire) inputs, measured in wattages. Both types transfer the audio signal from your receiver to the amplifier and on to the speakers. - Variable Input Gain Control: The gain knob is used to match the incoming signal level from your head unit to the amplifier — it is not a volume control. Amplifier Design: - Class A/B Topology: Combines characteristics of Class A and Class B designs. Class ‘A’ operation involves continuous current flow through output transistors even with no audio signal present, while Class ‘B’ operation has no output current when there is no signal. - MOSFET Power Supply: Employs a MOSFET switch for precise control of output voltage and current. This design reduces output current sensing loss and removes the need for secondary feedback circuitry. Specifications: - Dimensions: 10.72” x 10.44” x 2.25” - Weight: 5.20 lbs. - Speaker Impedance: 2 to 8 Ohm - THD @ RMS Output: 0.01% - S/N Ratio: 102 dB - Frequency Response: 9 Hz to 50 kHz - Fuse Quantity: 1 40 Amp ATO Blade