Crunch GTX1000.4D

The Crunch GTX1000.4D from the GRAVITY GTX series combines four amplifier channels with an exceptionally compact design. Thanks to modern Class D technology, the amplifier delivers solid output power while taking up minimal space, making it ideal for installations where high-performance car audio equipment needs to be housed as discreetly as possible.

With 4 x 80 watts RMS at 4 ohms or 4 x 125 watts RMS at 2 ohms, a variety of speaker configurations can be supported. Alternatively, the channels can be bridged, providing 2 x 250 watts RMS at 4 ohms. This makes the GTX1000.4D suitable, for example, for powering a front and rear speaker system or for combinations of speakers and subwoofers.

Separate filter options are available for the front and rear channels to fine-tune the system. The rear section offers particular flexibility with high-pass, low-pass, and band-pass modes. In addition, a bass boost of up to 12 dB at 45 Hz is available. High-level inputs with EPS enable integration into numerous vehicles equipped with factory-installed radios. An automatic power-on function is also available via the high-level input.

Technical Specifications:

• Amplifier Type: 4-Channel Digital Amplifier

• Amplifier Technology: Class D

• Number of channels: 4

• RMS power at 4 ohms: 4 x 80 watts

• RMS power at 2 ohms: 4 x 125 watts

• RMS power (bridged at 4 ohms): 2 x 250 watts

• RMS power ratings at 14.4 V

• Maximum power at 4 ohms: 4 x 160 watts

• Maximum power at 2 ohms: 4 x 250 watts

• MAX power (bridged at 4 ohms): 2 x 500 watts

• Permissible speaker impedance: 2–8 ohms

• Total harmonic distortion at 5 watts: 0.11%

• Damping factor: 60

• Signal-to-noise ratio: 106 dB

• Low-level input sensitivity: 260 mV – 6.4 V

• High-level input sensitivity: 360 mV – 8.3 V
  
  

Filters and Tone Control:

• High-pass filter (front): 10 – 5,000 Hz

• Front high-pass slope: 12 dB/octave

• High-pass/bandpass filter (Rear): 10–500 Hz

• Slope of the rear high-pass filter: 12 dB/octave

• Low-pass/band-pass filter (Rear): 50–5,000 Hz

• Slope of the rear low-pass filter: 12 dB/octave

• Rear Bass Boost: 0–12 dB at 45 Hz

• Bandpass mode for the rear channels

• Input selector switch for 2-channel/4-channel operation
  
  

Features:

• Low-level/RCA inputs

• High-Level Inputs with EPS®

• EPS® for Preventing Error Messages in Compatible Vehicle Diagnostic Systems

• Automatic power-on function via high-level input

• Bass Level Remote Control for the Rear Channels

• RCA connectors via cable plugs

• High-quality aluminum heat sink

• Two-color illuminated logo panel

• Recessed acrylic trim on the top of the case
  
  

Electrical Specifications and Dimensions:

• Operating voltage: 8–16 V

• External fuse: 50 A

• Width: 135 mm

• Height: 48 mm

• Length: 210 mm

• Dimensions (W x H x L): 135 x 48 x 210 mm