GZHA MINI FOUR

The Ground Zero GZHA MINI FOUR combines powerful output with exceptionally compact dimensions. The highly efficient 4-channel Class D amplifier is ideal for high-performance car audio systems where installation space is limited.

With 4 x 80 watts RMS at 4 ohms or 4 x 130 watts RMS at 2 ohms, the GZHA MINI FOUR offers ample power reserves for high-performance front and rear speaker systems. Alternatively, the channels can be operated in bridge mode. In this case, 2 x 260 watts RMS at 4 ohms are available—for example, for higher-power speakers or corresponding subwoofer applications.

The built-in active crossover allows for flexible adaptation to the connected speaker system. High-pass, low-pass, and band-pass filters can be adjusted according to the desired application. Thanks to its wide frequency range up to 38 kHz, this compact amplifier can be used in a variety of high-end car audio setups.

In addition to RCA signals, the GZHA MINI FOUR also processes high-level signals, making it suitable for integration into vehicles with factory-installed radios. The Auto-On function allows the amplifier to turn on automatically when a high-level signal is present.

Thanks to Class D technology, SMD components, and a regulated power supply, the Ground Zero delivers high performance in a footprint of just 135 x 210 mm. The massive heat sink protects the electronics while ensuring the necessary heat dissipation.

Highlights

• Compact 4-Channel Car Hi-Fi Amplifier
• Highly Efficient Class-D Circuit
• 4 x 80 watts RMS at 4 ohms
• 4 x 130 watts RMS at 2 ohms
• 2 x 260 watts RMS at 4 ohms in bridge mode
• Maximum output power: 640 watts
• Integrated high-pass, low-pass, and band-pass filters
• High-level input for easy OEM integration
• Automatic power-on function via a high-level signal
• Input sensitivity from 300 mV to 6 V
• Damping factor greater than 100
• Regulated Power Supply
• High-Quality SMD Components
• Large-size terminal blocks
• Connection for optional level remote control
• Compact heat sink with "Ground Zero" lettering
• Very compact dimensions
  
  

Technical Specifications

• Manufacturer: Ground Zero
• Model: GZHA MINI FOUR
• Series: Hydrogen
• Amplifier Type: 4-Channel Class D Amplifier
• Number of channels: 4
• RMS power at 4 ohms: 4 x 80 watts
• RMS power at 2 ohms: 4 x 130 watts
• RMS power (bridged at 4 ohms): 2 x 260 watts
• Maximum output power: 640 watts according to CEA-2006-A at 10% THD+N
• Damping factor: > 100
• Frequency response: 5 Hz – 38 kHz (± 1 dB)
• Input sensitivity: 300 mV – 6 V (± 5%)
• Low-pass filter (LPF): 40 – 4,000 Hz
• Low-pass slope: 12 dB/octave
• High-pass filter (HPF): 10–500 Hz
• High-pass slope: 12 dB/octave
• Bandpass filter (BPF): 10 – 4,000 Hz
• Bandpass slope: 12 dB/octave
• High-level input: Yes
• Auto-On Feature: Yes
• Volume Remote Control: Optional, GZTA Bass Remote
• Fuse: 1 x 40 A, internal
• Dimensions (W x H x L): 135 x 52 x 210 mm
• Amplifier Technology: Class D
• Circuit Technology: SMD
• Power Supply: Regulated