ETON MA1 - 1 Channel Monoblock Class-D Amplifier - 690 RMS 4 Ohm

The ETON MA1 is a newly developed 1-channel Advanced Class-D monoblock, delivering extreme power in a compact, timeless die-cast aluminium housing with a refined gunmetal finish. Engineered in Germany, it combines high efficiency, exceptional control, and installation flexibility.

Despite its compact size of just 270 × 160 × 51 mm, the MA1 offers outstanding performance and ultra-low distortion, making it ideal for high-output subwoofer systems.

Power Output

• 1 × 690 W RMS @ 4 Ω
• 1 × 1120 W RMS @ 2 Ω
• 1 × 1510 W RMS @ 1 Ω

Features

• Advanced Class-D technology
• Ultra-low THD+N: 0.003% @ 100 W / 60 Hz
• Signal-to-noise ratio: 96.5 dB
• Damping factor @ 4 Ω: >340
• Active low-pass filter: 25–250 Hz, 12 / 24 dB per octave
• Subsonic filter: 30 Hz
• Auto sense-on (SIG / DC)
• High- and low-level inputs
• Adjustable gain: 0.45 – 6 V

Installation & Design

• High-quality die-cast aluminium housing, gunmetal finish
• Removable, 180° rotatable aluminium top cover with LED status light bar
• Integrated adjustment tool for gain and filters
• Stackable amplifier design
• Detachable power and signal connectors
• Hidden or adjustable mounting options