Crunch GTO3750

The Crunch GTO3750 is an exceptionally compact 3-channel amplifier that combines two full-range channels with a powerful subwoofer channel in a single enclosure. This makes the amplifier ideal for space-saving car audio systems in which, for example, a front speaker system and a subwoofer are to be powered by a single amplifier.

Despite its compact size, the GTO3750 delivers up to 500 watts RMS at 2 ohms on the subwoofer channel. The two full-range channels each deliver up to 125 watts RMS at 2 ohms. Class D technology makes it possible to achieve this power output in a compact design.

A wide range of filter options is available for precise adjustment to the connected speaker system. Channels 1 and 2 feature an adjustable high-pass filter, while the subwoofer channel is equipped with a low-pass filter and a subsonic filter. Additionally, the bass range can be adjusted using an adjustable bass boost at 45 Hz.

In addition to RCA inputs, the GTO3750 features high-level inputs, allowing it to be integrated into systems where the existing factory radio is to be retained. Its compact dimensions also make it easy to install in locations with limited space.

Technical Specifications

• Amplifier Type: 3-channel amplifier

• Amplifier Technology: Class D

• Speaker impedance: 2–8 ohms
  
  

RMS power at 4 ohms:

• Channel 1/2: 2 x 75 watts RMS

• Subwoofer channel: 1 x 250 watts RMS
  
  

RMS power at 2 ohms:

• Channel 1/2: 2 x 125 watts RMS

• Subwoofer channel: 1 x 500 watts RMS
  
  

Maximum power at 4 ohms:

• Channel 1/2: 2 x 150 watts

• Subwoofer channel: 1 x 500 watts
  
  

Maximum power at 2 ohms:

• Channel 1/2: 2 x 250 watts

• Subwoofer channel: 1 x 1,000 watts
  
  

Frequency ranges:

• Frequency response, channels 1/2: 10 Hz – 40 kHz (-3 dB)

• Subwoofer channel frequency response: 10 Hz – 250 Hz (-3 dB)
  
  

Filters and Sound Settings:

• High-pass filter, channels 1/2: 10–250 Hz, 12 dB/octave

• Low-pass filter for subwoofer channel: 50–250 Hz, 12 dB/octave

• Subsonic filter for subwoofer channel: 10–50 Hz, 12 dB/octave

• Bass Boost Subwoofer Channel: 0–12 dB at 45 Hz
  
  

Additional technical specifications:

• Total Harmonic Distortion, Channel 1/2: < 0.2% at 1 kHz

• Subwoofer channel distortion factor: < 0.2% at 100 Hz

• Signal-to-noise ratio: > 90 dB

• Input sensitivity: 0.4 – 6 V

• RCA input impedance: 20 kOhm

• High-level input impedance: 30 ohms

• Operating voltage: 12–16 V DC

• Mass: Reduction in vehicle mass

• Fuse: 2 x 35 A, internal

• Dimensions (W x H x L): 135 x 50 x 250 mm
  
  

Features

• RCA inputs

• High-level inputs for integration with factory-installed radios

• Separate filters for the front system and subwoofer

• Adjustable Bass Boost

• Compact design

• Two full-range channels plus a separate subwoofer channel

• Up to 750 watts RMS total power at 2 ohms