Crunch CRE400.4 DSP-M1 – four-channel amplifier

Description

Crunch CRE400.4DSP – Plug&Play DSP Amplifier

The kit includes an amplifier with a CRE400.4DSP DSP processor , an ISO wiring harness (100 cm) and connection cables enabling plug&play Audi, Seat, Skoda, VW cars with the VAG Power Quadlock Full 40-pin
(full list in the "Compatibility list" tab) .

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Tested and awarded

CRE400.4DSP model was tested by German magazine Car&HiFi (February 2024) and received a 1.2 , placing it in the highest class – Spitzenklasse .
The test confirms that it is a best-in-class DSP solution for entry-level car audio users .

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Description and functions

The CRE400.4DSP is a four-channel amplifier with a six-channel DSP processor and built-in Bluetooth . It offers a wide range of system configuration options – from simple installations with front and rear speakers to active three-way systems or setups with an additional bass amplifier.

The amplifier can operate both as a standalone power source and as a DSP processor – thanks to the switch, you can turn off the power amplifier and use the device as the center of the audio system, saving energy.

The processor offers 6 RCA outputs , high-level inputs , and an AUX input , as well as automatic source switching. Bluetooth allows for wireless music streaming and full control from a mobile app or PC.

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Data and technology

• 4-channel amplifier with 4×41 W RMS power (2 Ω)

• 6-channel DSP processor (48 kHz / 22 kHz frequency response)

• Bluetooth for audio streaming and app control

• 31-band EQ , crossovers up to 48 dB/oct, Butterworth filters

• MOSFET PWM power supply , stable operation at 2 Ω

• Low THD distortion: 0.03%

• High signal-to-noise ratio

• Auto-enable on Hi-Level inputs

• Dual-power Molex connectors

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Control and software

The device is fully configurable via:

• DSP mobile application (EQ, crossover, subwoofer adjustment),

• PC software – also available for 12-channel systems.

This gives the user full control over each channel, and the sound configuration can be adjusted to individual preferences.

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Impressions from the tests

In the Car&HiFi the CRE400.4DSP received excellent scores for:

• purity and dynamics of sound,

• wide stereo stage,

• neutrality and universality of sound – from rock to jazz and R'n'B.

Despite its compact design and moderate power, the amplifier offers a significant improvement in sound quality over factory systems .

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Summary

The Crunch CRE400.4DSP is a compact, modern, and functional plug-and-play that combines high-quality sound with ease of installation.
It's the perfect choice for users who want to upgrade their factory sound system while maintaining full integration with their vehicle's original audio system.