MB Quart - DA2-500.5D Discus 500 Watt Waterproof 5 Channel Amplifier

MB Quart Discus DA2-500.5D Compact Waterproof 500W 5-Channel Amplifier

Upgrade your marine, powersports, or mobile audio system with the MB Quart Discus DA2-500.5D, a compact, waterproof 5-channel Class D amplifier delivering up to 500 watts of clean, efficient power. Built for universal applications, it features rugged, IP67-rated construction, potted internals, and top-mounted controls for easy system tuning.

Included is a wired bass remote, allowing convenient adjustment of low frequencies from anywhere in your vehicle.

Powerful 5-Channel Performance

• Max Power: 500W
• CH5 @ 1 Ohm: 350W
• 4 x 50W + 1 x 225W @ 2 Ohms
• 4 x 35W + 1 x 150W @ 4 Ohms
• 2 x 100W Bridged @ 4 Ohms (CH1-4)
• Class D efficient topology with robust MOSFET PWM power supply

Marine-Grade Waterproof Protection

• IP67 rated for water and dust resistance
• Potted internals for moisture protection
• Waterproof connectors prevent corrosion and ensure reliable signal

Precision Sound Control

• Variable electronic crossovers for full sound customization
• CH1 & CH2 High-Pass: Switched Full/HPF, CH3 & CH4: Switched Full/HPF
• CH5 Low-Pass: 50Hz–150Hz, Subsonic Filter 15Hz–50Hz
• Top-mounted sealed controls for bass boost and input sensitivity
• Q-Stasis low-noise preamplifier for minimal distortion

Advanced Output Technology

• MB Quart FLUID-FETS output devices for high-efficiency, high-quality sound
• Heavy-duty heatsink efficiently manages thermal load
• Electronic equalizer for precise frequency tailoring

Bass Remote Included

Fine-tune your bass levels on the fly with the included wired bass remote, easily mounted anywhere in your vehicle for convenience.

Additional Features

• LED system protection indicators for overload and speaker short monitoring
• RCA inputs prewired for added durability
• Plug-and-play waterproof connections
• Compact footprint for easy installation in tight spaces

Technical Specifications

• Channels: 5
• Class: