Arc Audio MOTO 600.4 Multi-Channel Amplifier (Four-Channels) Multi-Channel Amplifier (Four-Channels) Microprocessor Class-D Design. Designed And Engineered By Robert Zeff. High-Frequency Power Supply Design For Improved Signal Transparency And Overall...

Alpine KTA-450 4-Channel Power Pack Amplifier with PowerStack Capability The next generation of Power Pack is here! The compact KTA-450 Power Pack Amplifier utilizes Alpine’s exclusive DPP technology for a big power boost in a small space. The KTA-450...

JL Audio MX280/4 Engineered specifically for powersports applications, the 4-channel MX280/4 amplifier employs our high-speed NexD™ switching design to deliver plenty of clean power, without straining charging systems. Its tiny, cast aluminum...

HTX4: Class D 600 watt 4-channel amplifier Wet Sounds™ Hydro-Tech™ X (HTX) Series Amplifier. Wet Sounds represents the ultimate in High Performance Marine Audio. Wet Sounds HTX Series Marine Amplifiers are designed to be a complete solution for every...

Wet Sounds STX Micro-4 Powersports Series Class-D 4-Channel 1-Ohm Stable Ultra Compact Amplifier Wet Sounds Powersport Series STX Micro-4 Class-D Full Range 4-Channel Amplifier RMS Power Rating: 4 ohms: 80 watts x 4 chan. 2 ohms: 130 watts x 4 chan. 1...

JL Audio M400/4 This tiny amplifier packs a serious full-range punch, delivering a staggering 100 watts to each of its four channels into 2 Ω (14.4V, 1% THD). The breakthrough that makes this much power possible in such a small chassis is our...

JL Audio MX500/4 Engineered specifically for powersports applications, the 4-channel MX500/4 amplifier employs our high-speed NexD™ switching design to deliver plenty of clean power, without straining charging systems. Its tiny, cast aluminum...

Hear the Difference with this Simple Power Upgrade!Add higher output and a more dynamic response with this easy-to-install Alpine head unit Power Pack upgrade. The KTP-445A Power Pack amplifies power output on select 2005 and newer Alpine head units,...

This listing is for a single Kicker 45KMA300.4 4x75 Watt 4-Channel Weather-Resistant Full-Range Amplifier TOP TECH Purpose-built for your boat, every KM amp comes complete with marine-grade speaker terminals, stainless-steel screws, conformal-coated...

Kicker 44KXMA400.4 Amplifier The KXM 400-watt four-channel amplifier is flexible enough to be a full system solution, or serve as the power for your mid and high-range speakers. KickEQ+™ delivers as much as an 18dB of extra bump with a simple turn...

Kicker 42PXA300.4 Amplifier The PXA300.4 Four-Channel Amplifier is built to power every speaker in your ride. Perfect for motorcycles, side-by-sides, ATV’s and more, this weatherproof amp delivers huge power, on or off the road. With a 24dB...

SD4 4 channel amplifier does an impressive 185 watts x 4 at 4 ohms, 340x4 at 2 ohms and Bridged the amplifier does 685x2. The Sinister amplifiers use superior performance circuitry by utilizing Wet Sounds exclusive Class D Power Supplies combined...