Audi A4 (B9) with standard sound | 5-channel DSP sound upgrade | Subwoofers

Upgrade amplifier with DSP, vehicle-specific bass reflex subwoofer, mounting accessories, and plug-and-play wiring harness for Audi A4 B9, 2015-2021, for vehicles with standard speaker system (without subwoofer in the trunk)

Do you have a leased vehicle and want to improve the sound of the standard system, but don't want to take the whole car apart? Here's the solution: a high-quality plug-and-play amplifier with DSP that unlocks unprecedented sound and performance from your vehicle's original speaker system!

The set comes with a ready-to-use wiring harness (it's spliced into the factory wiring harness) and a pre-installed, vehicle-calibrated sound setup. Installation is therefore completed in less than 90 minutes, even for inexperienced installers!

Powerful performance in a pocket-sized package:
Barely bigger than a smartphone, but with the performance of a true giant!

With an almost unbelievable 400/800 watts RMS/max output power and five amplifier channels, many a loudspeaker will break a sweat! Such power in such a compact space is only possible thanks to Audiotec Fischer's proprietary Class HD technology, which guarantees sensational efficiency and therefore minimal heat generation. This opens up unprecedented possibilities when choosing the installation location. This plug-and-play amplifier fits behind the glove compartment in most vehicles, minimizing installation effort and eliminating long cable runs! With the optionally available wired remote control, you can switch between optimized sound setups and adjust the subwoofer level. Description of the MATCH M 5.4DSP amplifier: Highly efficient 5-channel Class HD amplifier with integrated 7-channel DSP. Minimal dimensions for space-saving and concealed installations. Minimal heat generation thanks to maximum efficiency. Latest generation 32-bit AD and DA converters. Two power options: “HighPower” mode for maximum performance and “MidPower” mode with reduced output power and lower current consumption for plug & play; Play Applications

Extremely powerful "Fixed Point" audio DSP with 64-bit resolution

Optical SPDIF input with a sampling rate between 12 and 96 kHz

Intelligent high-level input with ADEP.3 circuitry and automatic turn-on, therefore no "remote" from the car radio is required

Start-stop capability down to 6 V supply voltage

RMS / Max. Power

@ 4 Ohms High-Power mode: 4 x 60 / 120 watts (front/rear channels)

Mid-Power mode: 4 x 35 / 70 watts (front/rear channels)

Subwoofer output at 4 Ohms High & Mid-Power mode: 1 x 90 / 180 watts

Subwoofer output at 2 Ohms High- & MidPower Mode: 1 x 160 / 320 Watts

Amplifier Technology Class HD

Input Sensitivity 11.2 Volts via High-Level Speaker Input

Input Impedance High-Level 9 - 33 Ohms with ADEP.3

Outputs 5 x Speaker Outputs

Frequency Range 20 Hz - 20,000 Hz

DSP Resolution 64 Bits

DSP Processing Power 295 MHz (1.2 Billion MAC Operations/Second)

Sampling Rate 48 kHz

DSP Type Audio Signal Processor

Signal Converter Asahi Kasei 24 Bit

Signal-to-Noise Ratio Analog Input > 99 dB (A-weighted)

Total Harmonic Distortion (THD) <0.03%

Damping factor >50

Operating voltage 10.5 volts (max. 5 sec. down to 6 volts)

No-load current consumption 280 mA

Dimensions (H x W x D) 35 x 85 x 110 mm

Subwoofer description:

Helix K10W subwoofer in an Audi A4-specific bass reflex enclosure. It fits perfectly in the double floor of the trunk, behind the battery, and projects sound towards the rear of the vehicle. This positioning allows for an impressive sound level despite its small size and limited space. In this configuration with 1x2, it comes with mounting brackets for securing the enclosure. Power handling: 300 watts RMS. Dimensions: 260 x 625 x 165 mm