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VATN Aquadust 800W 4CH 2-Ohm Waterproof Marine Power Sport Amplifier

MARINE-GRADE DURABILITY – Fully waterproof design with sealed cabling and control cover for extreme weather protection. HIGH-POWER PERFORMANCE – Delivers up to 800W RMS with stable 2-ohm output for clean, powerful sound on any terrain. COMPACT & VERSATILE – Slim profile fits stealth installs; features auto power-on, crossover control, and flexible input modes. TOTAL SOUND CONTROL – Fine-tune your audio with bass boost, high/low pass filters, and input gain for precision tuning. B2 Audio VATN Aquadust 800W 4CH 2-Ohm Waterproof Marine Power Sport Amplifier This Listing Includes: (1) B2 Audio 800 Watt Waterproof Marine Power Sport Amplifier VATN-AD-800.4 (1) AGU Fuse Holder w/ 80 Amp Fuse Born from the depths of Scandinavian engineering, the VATN Aquadust 800.4 is a marine-grade 4-channel amplifier that delivers relentless power and precision in the harshest environments. With up to 800 watts of RMS output, this compact powerhouse is built to fuel your sound system while you're tearing through open water. Designed specifically for marine and power sport applications, every connection is sealed with fully waterproof cabling, and the amplifier’s control panel is protected by a durable waterproof cover, ensuring your settings stay locked in and shielded from the elements. From its versatile crossover network and bass boost control to its auto power-on and high/low pass filters, the VATN-AD-800.4 gives you full command over your sound. With stable 2-ohm performance, flexible input modes, and a compact footprint, it’s ready for stealth installs without sacrificing output. The Aquadust 800.4 is your all-terrain audio weapon, built to play clean audio under harsh conditions. Features: Input Gain Control High Pass Filter Low Pass Filter Bass Boost Control Input Level Selector Input Mode Selector X-Over Control Auto Power On Power Status LED Power/Audio Output Wiring Harness IPX5 Rating Specifications: 4 ohm RMS Power: 120 W x 4 2 ohm RMS Power: 165 W x 4 / 200 W x 4 Bridged 4 ohm RMS Power: 430 W x 2 / 400 W x 2 Min. Speaker Impedance: 2 ohm Frequency Response: 20 Hz - 20 KHz S/N Ratio: > 82dB T.H.D: <1% / <3% Input Sensitivity 300 mV - 8 V Low Pass Frequency: 50 Hz - 250 Hz High Pass Frequency: 120 Hz - 3 KHz Bass Boost: 0 - 12 dB AGU Fuse: 80 A Operating Voltage: 9 - 16 V DC Product Dimensions: Length: 9.84" Width: 4.53" Height: 1.97" Weight: 3.7 lbs Packaging Dimensions: Length: 13.75" Width: 6.5" Height: 4.5" Weight: 4.4 lbs

Specifications

channels
4
rms watts
800 W
fuse rating amps
80
Compare Prices(1 retailer)
Big Jeff Online AudioAuthorized Dealer
Available
$249.95
Updated 6/22/2026
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Frequently Asked Questions

What is the B2 Audio VATN Aquadust 800W 4CH 2-Ohm Waterproof Marine Power Sport Amplifier?

The B2 Audio VATN Aquadust 800W 4CH 2-Ohm Waterproof Marine Power Sport Amplifier is a car audio equipment made by B2 Audio. View full specifications and where to buy on this page.

How much does the B2 Audio VATN Aquadust 800W 4CH 2-Ohm Waterproof Marine Power Sport Amplifier cost?

The B2 Audio VATN Aquadust 800W 4CH 2-Ohm Waterproof Marine Power Sport Amplifier typically sells for around $250 depending on the retailer and variant. Check the "Where to Buy" section for current pricing from authorized dealers.

Where can I buy the B2 Audio VATN Aquadust 800W 4CH 2-Ohm Waterproof Marine Power Sport Amplifier?

You can purchase the B2 Audio VATN Aquadust 800W 4CH 2-Ohm Waterproof Marine Power Sport Amplifier from authorized dealers listed in the "Where to Buy" section on this page. We recommend buying from authorized retailers to ensure warranty coverage and genuine products.

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