MATCH UP 4DSP - 4 Channel Upgrade Amplifier

4-channel Class GD upgrade amplifier with integrated 5-channel 64-bit DSP for universal applications. 

DSP Features

TuneEQ

TuneEQ is an extremely flexible and incredibly easy-to-use function for automatic frequency response correction. A single measurement per audio channel or channel pair with a suitable measurement microphone (such as our MTK1) is sufficient for TuneEQ to automatically and precisely adjust the equalizer to the desired reference curve. TuneEQ leverages all the features of a parametric equalizer, including center frequency, Q factor, and gain. Furthermore, because the necessary calculations, although complex, are performed in the background, TuneEQ saves a significant amount of time when fine-tuning the sound.

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Real Center

The "RealCenter" function is a proprietary Audiotec Fischer algorithm that emphasizes the monophonic information of the front left and right channels to create a single center signal. Unlike conventional methods that simply add channels, this system dynamically controls the center signal based on the stereo content of the left and right channels. This means that the center channel will not reproduce any signal if only the left or right channel is outputting an audio signal. With conventional algorithms, in this case the center channel would be only 6 dB quieter. Audiotec Fischer's "RealCenter" system thus achieves a unique, wide soundstage, optimal for both driver and passenger! The disadvantages of a conventional center channel, such as a narrow and intrusive spatial soundstage, are finally a thing of the past.

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Technical Data

• RMS / Max. Power at 4 Ohms: Channels A - B: 2 x 60 Watts (min. 3 Ohms)
• Subwoofer Power at 4 Ohms: Channels C - D: 2 x 85 Watts
• Subwoofer Power at 2 Ohms: Channels C - D: 2 x 140 Watts
• Amplifier Technology: Class GD
• Inputs: 4 high-level speaker inputs, 1 optical SPDIF input (12 - 96 kHz)
• Input Sensitivity: 2.8 - 11 volts
• High-level Input Impedance: 9 - 33 ohms with ADEP.3
• Outputs: 4 speaker outputs, 1 RCA output, 1 remote output
• RCA Output Voltage: 3 volts RMS
• Frequency Range: 15 Hz - 22,000 Hz
• DSP Resolution: 64 bit
• DSP Processing Power: 295 MHz (1.2 billion MAC operations per second)
• Sampling rate: 48 kHz
• DSP type: Audio signal processor
• Signal converter: A/D: BurrBrown, D/A: BurrBrown
• Digital input signal-to-noise ratio: 102 dB (A-weighted)
• Analog input signal-to-noise ratio: 101 dB (A-weighted)
• Total harmonic distortion (THD): < 0.03%
• Damping factor: > 50
• Operating voltage: 10.5 - 18 volts (max. 5 seconds up to 6 volts)
• DC power consumption: 12 V ⎓ 35 A max.
• Quiescent current consumption: 260 mA
• Maximum remote output current: 500 mA
• Operating temperature range: -40°C to +70°C
• Fuse: 1 x 30 A LP mini plug-in fuse

Additional features:

• Class GD technology with dynamically regulated power supply
• 32-bit coprocessor
• ADEP.3 circuit
• Start/stop function
• Intelligent control port
• USB
• MEC slot
• Car remote switch
• Galvanically isolated cable
• Dimensions (height x width x depth): 46 x 130 x 110 mm

Delivery contents

• 1 x MATCH UPGRADE UP 4DSP amplifier
• 2 x connection cables
• 1 x mounting plates and hardware
• 1 x USB cable
• 1 x instruction manual