MB Quart RA1-1100.4 Reference 1100W 4-Channel Car Audio Amplifier

MB Quart RA1-1100.4 is a 1,100-watt, 4-channel car audio amplifier from the MB Quart Reference series, engineered to deliver exceptional sound quality and power for demanding audio systems. Built with MB Quart's proprietary Class SQ topology and Q-Stasis preamp stage, this amplifier pushes beyond standard Class D performance to deliver sonic accuracy and clarity typically found in high-end home audio equipment.

Key Features:

• Class SQ Topology: Multi-channel amplifier design utilizing MB Quart's unique Class SQ circuit for superior sonic accuracy and clarity over standard Class D amplifiers
• FLUID-FETs Output Devices: Precision-selected output transistors engineered for efficient power delivery and high-fidelity sound quality
• Q-Stasis Preamp Stage: Low-noise preamp circuit for a clean, accurate signal path from input to output
• DC Sensing / High-Level Inputs: Automatic high-level input detection allows seamless integration with OEM factory head units without a dedicated RCA output
• Tiffany-Style RCA Inputs: Direct-to-PC-board RCA connections for added durability and reduced signal noise
• Electronic Crossover & Equalizer: On-board adjustable crossover and EQ allow precise frequency tailoring to match speakers and subwoofers
• Top-Mounted Control Panel: Gain, crossover, bass boost, and other adjustments accessible via a removable top-mounted panel for clean installation
• MOSFET PWM Power Supply: Rugged pulse-width modulation power supply delivers efficient, stable power without overloading the vehicle's electrical system
• Aluminum Heat Sink: Rapidly dissipates heat for sustained low-impedance operation
• 360° Floating PC Board: Component layout engineered for best-in-class thermal stability
• Requires 4-gauge power cable and 90A external fuse

The RA1-1100.4 is a perfect match for MB Quart Reference series speakers and Reference RW1 subwoofers, and its compact, sleek black design makes it an ideal choice for builds where installation space is limited.