REVOLUTION 7 Series Class A/B High-Bias 4-Channel Amplifier (150 Watts x 4 RMS @ 4 Ohm) (7A4)

High-end 4-channel car amplifier designed for absolute transparency. The Revolution 7A4 amplifies your music without coloration—neutral, controlled, and refined at every power level.

Power Output:

• 4 x 150W RMS @ 4 Ohm
• 2 x 400W RMS @ 4 Ohm (bridged)
• Maximum bridged output: 480W

Technical Performance:

• Frequency Response: 5 Hz - 100 kHz
• THD: 0.0035%
• Signal to Noise Ratio: 110dB
• Class: High-bias Class AB
• Channels: 4 (pure amplifier design)

Design Features:

• High-gain Double Darlington drivers
• PHPT high-power bipolar driver system
• Dual symmetrical power supply
• Shielded transformers with large capacitors
• Massive aluminum heatsink
• Low-profile height design

Premium Components:

• Burr Brown OPA 1642 preamp chip
• Sanken Final Transistors
• Elna audio-grade capacitors
• High-end potentiometers
• Audio-grade internal wiring

Connectivity:

• RCA inputs (4 channels)
• Level controls only (no built-in crossovers/EQ)
• Gain bypass option
• Speaker terminal outputs (4 channels)
• Bridging capability for 2-channel operation