Crunch GPX4400.1D

The CRUNCH GPX4400.1D is a high-performance digital mono amplifier designed for high-end in-car subwoofer systems. With an RMS power output of up to 2,200 watts at 1 ohm, this monoblock amplifier offers ample power reserves for powerful bass setups and is designed for speaker impedances ranging from 1 to 8 ohms.

An adjustable low-pass filter and subsonic filter, as well as a bass boost and phase control, are available for precise subwoofer tuning. This allows you to tailor the sound to the subwoofer, enclosure, and vehicle acoustics. Using the included bass level remote control, the subwoofer level can be conveniently adjusted from the driver’s seat.

In addition to standard RCA inputs, the GPX4400.1D also features high-level inputs. This allows the amplifier to be connected directly to a factory-installed radio that does not have RCA outputs. When using the high-level input, an automatic power-on function is also available.

Another feature is the master/slave function. It allows compatible amplifiers to be connected via the master output, making it easier to set up high-powered subwoofer systems.

Technical Specifications:

• Amplifier Type: Digital Mono Amplifier

• Amplifier Class: Class D

• Channels: 1

• Speaker impedance: 1–8 Ω
  
  

RMS output power:

• 1 x 700 watts RMS at 4 Ω

• 1 x 1,200 watts RMS at 2 Ω

• 1 x 2,200 watts RMS at 1 Ω
  
  

Maximum output power:

• 1 x 1,400 watts max. at 4 Ω

• 1 x 2,400 watts max. at 2 Ω

• 1 x 4,400 watts max. at 1 Ω
  
  

Audio and filter data:

• Frequency response: 6 – 150 Hz (-3 dB)

• Low-pass filter: 40–150 Hz

• Low-pass filter slope: 12 dB/octave

• Subsonic filter: 10–35 Hz

• Subsonic filter slope: 12 dB/octave

• Bass Boost: 0–12 dB at 40 Hz

• Phase control: 0–180°

• Total harmonic distortion: < 0.5% at 80 Hz

• Signal-to-noise ratio: > 100 dB
  
  

Inputs and Connections:

• RCA Inputs

• High-level inputs

• RCA input sensitivity: 0.2 – 10 V

• High-level input sensitivity: 1–10 V

• Input impedance: 20 kΩ

• High-level input via the included cable connector

• Automatic power-on function via high-level input

• Master/Slave Connection

• Master Output

• Slave Input
  
  

Additional features:

• Bass Level Remote Control

• Adjustable Bass Boost

• Adjustable Subsonic Filter

• Adjustable Low-Pass Filter

• Adjustable Phase Angle

• Master/Slave Operation
  
  

Electrical Specifications:

• Operating voltage: 12 V

• Permissible operating voltage range: 9–15 V

• Negative Mass

• Required external fuse rating: 120 A
  
  

Dimensions:

• Width: 254 mm

• Height: 46 mm

• Length: 395 mm

• Dimensions (W x H x L): 254 x 46 x 395 mm