MB Quart RA1-1500.1 Reference 1500W Monoblock Class D Car Amplifier with Bass Remote

The MB Quart RA1-1500.1 is a 1500-watt monoblock car audio amplifier from MB Quart's Reference Series, engineered for high-output subwoofer performance. Rated at 1500 watts RMS at 1 ohm, this Class Q1 (Class D) mono amplifier delivers clean, powerful bass with excellent efficiency. It features DC Signal Sense auto turn-on, making it an ideal solution for OEM integration without the need for a dedicated remote turn-on wire.

Power Output (RMS):

• 1500 watts x 1 channel @ 1 ohm
• 1000 watts x 1 channel @ 2 ohms
• 500 watts x 1 channel @ 4 ohms

Key Features:

• Class Q1 Mono (Class D) Topology: Combines the efficiency of Class D amplification with MB Quart's focus on sound quality, utilizing proprietary FLUID-FET output devices
• Q-Stasis Pre-Amplifier Stage: Low-noise preamplifier circuit minimizes distortion from the source unit signal
• DC Signal Sense Auto Turn-On: Automatically powers the amplifier when an RCA signal is detected — no remote turn-on wire required; can also be switched off
• Nickel-Plated RCA Inputs: High-temperature impact-resistant inputs with hex screw terminals for secure, corrosion-resistant connections
• Variable Electronic Crossover: Variable low-pass crossover (50Hz–250Hz, 12dB/octave) for precise frequency control tailored to subwoofers
• Bass Boost: 0–12dB adjustable bass boost via included bass remote
• Subsonic Filter: Switchable subsonic filter (OFF/25Hz) to protect subwoofers from harmful low frequencies
• MOSFET Power Supply: Rugged pulse-width modulation MOSFET power supply for efficient power delivery with minimal draw on the vehicle's electrical system
• Aluminum Heat Sink: Rapidly dissipates heat to support sustained low-impedance operation
• Protections: Thermal, short circuit, and overload protection

Specifications:

• Total Harmonic Distortion (THD): <0.1%
• Signal-to-Noise Ratio: >95dB
• Frequency Response: 25Hz–250Hz
• Input Sensitivity: 0.02V–9V
• Includes bass remote control

The MB Quart RA1-1500.1 is a capable and versatile monoblock amplifier suited for powering single or dual subwoofer setups. Its OEM-friendly DC Signal Sense feature and flexible crossover controls make it a strong choice for both aftermarket and factory system upgrades.