BOSS Audio Systems AR4000D 4000W Class D Monoblock Car Amplifier - 1 Ohm Stable, Digital MOSFET Power Supply, High Power for Car Subwoofers | Perfect for Car Audio Upgrades, Bass Boost, and Sound System Enhancement

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cursor: pointer; display:none;} if(P) { P.when("a-expander", "ready").execute(function (expander) { expander.initializeExpanders(); }); } Ramp up your vehicle's Bass with the BOSS Audio Systems AR4000D Class D Monoblock Amplifier. With 4000 Watts Max Power and MOSFET power supply, this Amplifier packs an audio punch. Customize the sound with Variable Low Pass Crossover, Bass Boost, Subsonic Filter, and Remote Subwoofer Control. Strap this Amplifier to another AR4000D for double the performance. The Armor Series of Amplifiers packs incredible power and performance into a feature-rich slim design for put-it-anywhere convenience. Class D, Monoblock, MOSFET power supply, subwoofer level control 4000 @1-Ohm x 1 max, 2000 @2-Ohms x 1 max 1000 @4-Ohms x 1 max, 8000 @2-Ohms x 1 max strapped Low level inputs, soft turn on circuit, power & protection LEDs Thermal overload speaker & short protect, master/slave switch Phase shift selector 0-180º, variable subsonic filter 15-40 Hz Variable low pass crossover 50-250 Hz, variable input gain control Input sensitivity selector, THD @ RMS output 0.01%, S/N Ratio 100 dB MOSFET Power Supply Metal Oxide Semiconductor Field-Effect Transistors quickly switch from full to non-conduction for high efficiency output. Strapping Capable Strap two amplifiers together to get double the power at an impedance of 2-Ohms. Low Level Inputs Low-level inputs accept pre-amp output signals to allow for the addition of amps and processors to units equipped with RCA Pre-amp outputs. Phase Control This comes in handy if you are installing your subwoofer with the magnet facing out. Reverses the polarity (Positive/Negative) on your subwoofer terminals to reverse the direction of the low frequency BOOM that you are used to hearing. Short Protection Automatic shut-off protects the amplifier if it gets too hot or if speakers fail causing a short. Remote Sub Control A wired remote lets you easily control the subwoofer level for customized output and superior sound. Switchable Input Sensitivity Switchable input sensitivity provides adjustable control over input signal from the head unit to achieve customized balance between power and sound quality. Variable Gain Control The Variable Input Control allows the amplifier input to match the output signal from the head unit to achieve optimum performance when adjusted properly. AR4000D AR3000D AR1500M AR2000M AR2500M Channels 1 1 1 1 1 Strappable Yes Yes No No No Max Power 4000W 3000W 1500W 2000W 2500W RMS Power 3000W x 1 @1-Ohm 2250W x 1 @1-Ohm 1125W x 1 @2-Ohms 1500W x 1 @2-Ohms 1875W x 1 @2 Ohms Low Pass Filter Variable Variable Variable Variable Variable Bass Boost Yes Yes Yes Yes Yes Switchable Input Sensitivity Yes Yes Yes No No Subsonic Filter Variable Variable No No No Inputs Low Level Low Level High and Low Level High and Low Level High and Low Level Dimensions L14.3125" x W6.5" x H2.8" L12.3125" x W6.5" x H2.8" L10.3125" x W6.5" x H2.8" L13.125" x W6.5" x H2.8" L16.1875" x W6.5" x H2.8"

Power - 4000 Watts Max x 1 @1-Ohm, 2000 Watts Max x 1 @2-Ohms

Class D - Power loss is significantly reduced making the amplifier highly efficient. Excess energy is stored until it’s needed instead of being converted into heat. Reduction in size/weight, reduced power waste, smaller heat sink, compact circuitry

1 Ohm Stable - Able to continuously power loads of 1 Ohm without encountering difficulties such as overheating. Typically made to power up subwoofers that demand the heavier power load requirements to be able to perform the way they were made to

Strapping Capable - You are able to strap two AR4000D amplifiers and double the power that is being sent to your subwoofer(s). You now have the ability to connect more subwoofers to take advantage of the extra power

Variable Bass Boost - Bass Boost allows you to adjust the low bass within the boost range to just the way you like it

Variable Subsonic Filter - To prevent your subwoofer(s) from bottoming out, the variable subsonic filter filters out frequencies below the subwoofer(s) specified low frequency limits and allows the driver to reach a maximum safe excursion

Variable Low-Pass Crossover - Subwoofers reproduce sound based on a number of different low-range frequencies. You can set exact sound specifications for the bass frequency reproduction

Specs - Dimensions: 14.3” x 6.5” x 2.8”, Weight: 7.96 lbs.