GZCS A-1.650D

The Ground Zero GZCS A-1.650D is a compact mono amplifier designed to powerfully drive a subwoofer in a vehicle. With an RMS power output of up to 650 watts into 1 ohm, this amplifier combines high output power with a space-saving design.

Thanks to its efficient Class D technology, the GZCS A-1.650D is particularly well-suited for subwoofer applications that require powerful bass performance in a limited installation space. The amplifier operates stably down to an impedance of 1 ohm and delivers 250 watts RMS at 4 ohms, 450 watts RMS at 2 ohms, and 650 watts RMS at 1 ohm.

An adjustable low-pass filter and a subsonic filter are available for tuning to the subwoofer and vehicle. In addition, bass boost and phase can be adjusted to suit the specific sound system. The adjustable input sensitivity makes it easier to tune the system to different signal sources.

In addition to the standard RCA input, the amplifier features a high-level input with an automatic power-on function. This allows the GZCS A-1.650D to be integrated into systems where the factory-installed radio does not provide RCA outputs.

An optional wired bass-level remote control also allows you to conveniently adjust the subwoofer level from the driver's seat.

Product Features

• 1-Channel Mono Power Amplifier
• Efficient Class D Circuit
• Designed to drive subwoofers
• 1-ohm stable
• SMD Component Placement
• Integrated Active Crossover
• Adjustable Low-Pass Filter
• Adjustable Subsonic Filter
• Adjustable Bass Boost
• Adjustable Phase Alignment
• Adjustable Input Sensitivity
• Stereo RCA Input
• High-level input for speaker signals
• Auto-On Function When Using the High-Level Input
• Power-On Delay
• Thermal Protection Circuit
• Rugged Power Supply
• Large-size terminal blocks
• Compact Heat Sink
• "Ground Zero" lettering on the heat sink
• Connection for optional wired bass level remote control
• Optional remote control: GZTA Bass Remote
  
  

Technical Specifications

• Manufacturer: Ground Zero
• Model: GZCS A-1.650D
• Item Number: 11130010
• Amplifier Type: Mono Class-D Amplifier
• Number of channels: 1
• RMS Power at 4 Ohms: 1 × 250 watts RMS at 1% THD+N
• RMS Power at 2 Ohms: 1 × 450 watts RMS at 1% THD+N
• RMS Power at 1 Ohm: 1 × 650 watts RMS at 1% THD+N
• Max. output power into 1 ohm: 1 × 750 watts at 10% THD+N
• Measurement Standard: CEA-2006-A
• Minimum load impedance: 1 ohm
• Frequency response: 10 Hz – 250 Hz
• Low-pass filter (LPF): 40 Hz – 250 Hz
• Low-pass filter slope: 12 dB/octave
• Subsonic filter: 10 Hz – 40 Hz
• Subsonic filter slope: 12 dB/octave
• Bass Boost: adjustable
• Bass boost frequency: 50 Hz
• Phase adjustment: adjustable
• Input sensitivity: 200 mV – 4 V
• Signal Input: Stereo RCA/Cinch
• High-level input: yes
• Auto-On via high level: yes
• Fuses: 2 × 30 A
• Bass Level Remote Control: Available as an option
• Dimensions (W × H × L): 185 × 47 × 152 mm