GMC 120.4D MINI COMPACT CLASS D FULL RANGE 4 CH

Upgrade your vehicle's sound system with the GENIUS AUDIO GMC120.4D Professional Class D Full Range Stereo Amplifier. This amplifier is built with very high-standard technology, offering a high-quality audio signal, definition, and linearity to achieve the best possible sound quality even at maximum power (up to 384 Watts RMS x 2CH @ 4 Ohm Bridge at 14.4V). Being a fully digital amplifier in both its power supply and amplification stages, it boasts an impressive efficiency of 93%, which results in very low current consumption (Max Musical Consumption: 30.3 Amp @ 12.6V) and minimal heat production.

The GMC120.4D is a versatile 4-channel stereo amplifier suitable for daily use or serious competition. It features selectable HPF (High Pass Filter) and LPF (Low Pass Filter) variable crossovers (50Hz - 500Hz) with a 12dB/Oct slope, enabling the use of virtually any type of speaker (tweeters, drivers, midbass, subwoofers). Additionally, it includes an adjustable Bass Boost (0-12dB) to fine-tune sub-bass frequencies and robust protection features against thermal overload, short-circuits, and voltage fluctuations, ensuring safe and reliable operation.

Key Technical Features and Utility:

• RMS Power Output (Max): Delivers up to 384 Watts x 2CH @ 4 Ohm Bridge (14.4V) or 190 Watts x 4CH @ 2 Ohm Stereo (14.4V).
  • Utility: Provides substantial, clean power for two high-demand speakers in bridged mode or four speakers in stereo, ensuring strong, clear audio performance.
• High Efficiency Class D Full-Range: Fully digital design with 93% efficiency.
  • Utility: Maximizes power conversion while minimizing heat generation and current draw, reducing strain on the vehicle's electrical system and supporting all speaker types.
• Variable Crossover Filters (HPF/LPF): Adjustable from 50Hz - 500Hz with a 12dB/Oct slope.
  • Utility: Allows precise system tuning to protect smaller speakers (using HPF) or dedicate channels to subwoofers (using LPF), optimizing sound quality and speaker lifespan.
• Minimum Impedance Connection: Stable at 2 Ohm Stereo and 4 Ohm Bridged.
  • Utility: Provides flexibility in wiring speakers, allowing users to connect two speakers per channel safely in stereo mode.
• Adjustable Bass Boost: Offers a 0-12dB boost.
  • Utility: Enables the user to customize and intensify the low-frequency output for a deeper, more impactful bass response.
• Wide Input Sensitivity Range: Adjustable from 0.3V to 10V.
  • Utility: Ensures proper gain matching with virtually any head unit or audio source, minimizing distortion and maximizing signal clarity.
• Protection System: Includes safeguards against short-circuit, low impedance, high/low supply voltage, and Thermal Protection (75°C).
  • Utility: Protects the amplifier and speakers from damage due to electrical faults or overheating, ensuring reliability and longevity.

[Download Product Manual]