GAS Audio MAD A1-500.1D

With the GAS Audio MAD A1-500.1D, you get a compact monoblock amplifier designed specifically for driving subwoofers. Efficient Class D technology delivers high output power with minimal heat generation, while the robust aluminum housing reliably dissipates the heat generated. Thanks to its stable 1-ohm design, the amplifier is suitable for both compact bass systems and high-performance subwoofer setups.

For easy setup, the MAD A1-500.1D features high-level inputs with an automatic turn-on (ATO) function, allowing the amplifier to be easily connected even to factory-installed radios without RCA outputs. The built-in CLIP indicator helps you fine-tune the amplifier and prevent distortion. With a variable low-pass crossover, subsonic filter, bass boost, and phase switch, the bass can be optimally adjusted to suit your vehicle and musical preferences. Comprehensive protection circuits against overheating, short circuits, and DC voltage also ensure reliable everyday operation.

Technical Specifications

• 1-Channel Class-D Monoblock Amplifier
• RMS power at 1 ohm: 1 x 500 watts
• RMS power at 2 ohms: 1 x 370 watts
• RMS power at 4 ohms: 1 x 230 watts
• Designed for 1-ohm operation
• Frequency response: 15–300 Hz
• Variable low-pass filter: 30–300 Hz
• Variable subsonic filter: 15–50 Hz
• Filter slope: 12 dB/octave
• Bass Boost: 0–12 dB at 45 Hz
• Phase switch: 0° / 180°
• Input sensitivity: 0.5–6 volts
• Signal-to-noise ratio: >92 dB
• Total Harmonic Distortion (THD): <0.05%
• Damping factor: >130
• High-level inputs with automatic turn-on (ATO)
• CLIP indicator for precise gain adjustment
• Bass Level Remote Control with CLIP Indicator
• RCA line output available
• Operating voltage: 10–16 volts
• Fuse rating: 2 x 35 A
• Compact aluminum cooling housing
• Dimensions (L × W × H): approx. 209 × 195 × 55 mm