ATV300

The Rockville ATV300 is a compact mono amplifier built specifically for powersport applications motorcycles, ATVs, UTVs, and similar vehicles where space is limited and conditions are harsh. It’s designed to drive one or two subwoofers, delivering 300 watts RMS at 2 ohms and 160 watts RMS at 4 ohms. Power ratings are dyno-tested at less than 1% THD, so what’s on the spec sheet reflects what the amp actually does under load.

The IP65 waterproof rating is the standout feature for outdoor installs. Every input, output, and wiring connection is sealed, and the circuit board is conformal coated to resist moisture intrusion. Anti-rust hardware handles exposure to the elements over time. Whether you’re washing down the vehicle or riding through rain, the amp holds up without requiring special protection or enclosure work.

At 8.66″ 3.74″ 1.73″, the ATV300 fits into tight under-seat or under-dash spaces that a standard car amp couldn’t reach. Class D topology keeps heat low and efficiency high, which matters in confined mounting locations with limited airflow.

Signal routing is flexible. The low pass filter sweeps from 32Hz to 320Hz, and the subsonic high pass filter covers 20Hz to 60Hz, giving you control over what frequencies reach your sub. A speaker-level input handles source units without dedicated RCA preamp outputs, so you can tap into an existing factory or aftermarket head unit signal without a line output converter. Input sensitivity adjusts from 0.2V to 6V on the low side and 0.5V to 15.5V on the high level input.

Specifications

• Type: Mono powersport amplifier
• RMS Power @ 2: 300W (<1% THD, dyno-tested)
• RMS Power @ 4: 160W
• Peak Power @ 2: 1200W
• Amplifier Class: Digital Class D
• Distortion (THD): 0.5%
• Frequency Response: 20Hz22kHz
• Signal to Noise Ratio: 80dB (1W into 4)
• Low Pass Filter: 32Hz320Hz
• Subsonic High Pass Filter: 20Hz60Hz
• Filter Modes: Full Range / Low Pass / High Pass (configurable)
• RCA Input: Waterproof sheath
• High Level Input: Speaker-level, 0.5V15.5V sensitivity
• Low Input Sensitivity: 0.2V6V
• Fuse Rating: 35A
• Waterproof Rating: IP65
• Circuit Board: Conformal coated
• Dimensions: 8.66″L 3.74″W 1.73″H
• Weight: 2.2 lbs

In the Box

• ATV300 mono amplifier
• Waterproof sheath RCA input cable
• High input (speaker level) adapter
• Mounting hardware
• User manual