Crunch GTX1500.1D

The Crunch GTX1500.1D from the GRAVITY GTX series is a compact digital mono amplifier designed to deliver high power to subwoofers. Despite its exceptionally compact dimensions, the amplifier delivers up to 750 watts RMS into 1 ohm, making it ideal for high-performance subwoofer installations where installation space is limited.

The efficient Class D circuit combines high output power with a compact design. An adjustable low-pass filter, a subsonic filter, and a bass boost are available to adapt to different subwoofers and enclosure designs. The included bass level remote control allows you to conveniently adjust the subwoofer level from the driver’s seat.

In addition to RCA inputs, the GTX1500.1D features high-level inputs with EPS®, allowing the amplifier to be integrated even into systems with factory-installed car stereos. The automatic power-on function via the high-level signal further simplifies OEM integration. Visually, the compact aluminum housing is complemented by the two-color illuminated logo panel.

Technical Specifications

• Amplifier Type: Digital Mono Amplifier

• Amplifier Technology: Class D

• Channels: 1

• Speaker impedance: 1–8 ohms

• Operating voltage: 8–17 V
  
  

RMS power at 14.4 V

• 1 × 250 watts RMS at 4 ohms

• 1 × 450 watts RMS at 2 ohms

• 1 × 750 watts RMS at 1 ohm
  
  

Maximum Output Power

• 1 × 500 watts MAX at 4 ohms

• 1 × 900 watts MAX at 2 ohms

• 1 × 1,500 watts MAX at 1 ohm
  
  

Filters & Settings

• Low-pass filter: 30–250 Hz

• Low-pass slope: 12 dB/octave

• Subsonic filter: 10–50 Hz

• Subsonic slope: 12 dB/octave

• Bass Boost: 0–12 dB at 45 Hz

• Remote Control with Adjustable Bass Level
  
  

Additional Technical Specifications

• Total harmonic distortion at 5 watts: 0.008%

• Damping factor: > 750

• Signal-to-noise ratio: 85 dB

• RCA/Low-Level Input Sensitivity: 230 mV – 5.7 V

• High-level input sensitivity: 300 mV – 11.2 V

• External fuse: 60 A
  
  

Connections & Features

• RCA/Low-Level Inputs

• High-level inputs

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

• Automatic power-on function via high-level input (DC)

• Connector for bass level remote control

• High-quality aluminum heat sink

• Two-color illuminated logo panel

• Compact design for space-saving installations
  
  

Dimensions

• Width: 135 mm

• Height: 48 mm

• Length: 175 mm