Match UP 7BMW Plug & Play 7 Channel Amplifier & DSP for 676 BMW Hi-Fi Systems

The Match UP 7BMW is a plug-and-play 7-channel amplifier with an integrated 8-channel 64-bit DSP, designed to upgrade BMW HiFi sound systems (option 676). It is part of the Match UP amplifier range by Audiotec Fischer.

This listing is for the UP 7BMW (7-channel). The Match UP 8BMW MK2 is also available for BMW E, F and G-series vehicles with SCP connection.

Key specifications

• Channels: 7-channel amplifier with 8-channel 64-bit DSP
• Output power (RMS / max): 5 x 65 / 130 W at 4 ohms (front, rear, centre); 2 x 160 / 320 W at 2 ohms (subwoofer)
• Amplifier technology: Class HD
• Inputs: 4 x high-level speaker input, 1 x optical SPDIF (12–96 kHz), 1 x MEC slot, 1 x remote in
• Input sensitivity (high-level): 2.0–8.3 V
• Input impedance (high-level): 13 ohms
• Outputs: 7 x speaker output, 1 x RCA/Cinch, 2 x remote out
• Output voltage RCA/Cinch: 3 V RMS
• Frequency response: 20 Hz–22,000 Hz
• DSP resolution: 64 Bit
• DSP power: 295 MHz (1.2 billion MAC operations/second)
• Sampling rate: 48 kHz
• Signal converters: A/D BurrBrown, D/A BurrBrown
• Signal-to-noise ratio (digital input): 105 dB (A-weighted)
• Signal-to-noise ratio (analogue input): 103 dB (A-weighted)
• Distortion (THD): < 0.03%
• Damping factor: > 100
• Operating voltage: 10.5–16 V (max. 5 sec. down to 6 V)
• Idle current: 450 mA
• Max. remote output current: 500 mA
• Fuse: 2 x 25 A LP-Mini-fuse (APS)
• Start-Stop capability: down to 6 V
• Dimensions (H x W x D): 46 x 130 x 153 mm / 1.81 x 5.12 x 6.02 inch
• Vehicle compatibility: BMW HiFi sound system (option 676), excluding RAM module vehicles from 09/2019

MATCH UP 7BMW

The UP 7BMW is a plug-and-play sound upgrade for BMW HiFi (option 676) vehicles, offering significantly more power and dynamics with a factory-style installation. It installs directly at the original amplifier mounting position using the included Plug & Play connection cable, and is flexible enough for universal use in BMW vehicles.

It features Audiotec Fischer's proprietary Class HD technology alongside a 64-bit DSP with innovative functions including Augmented Bass Processing, StageXpander, and RealCenter. A MATCH Extension Card (MEC) slot allows optional add-ons such as Bluetooth Audio Streaming or a High Resolution audio USB sound card. Configuration is handled via the DSP PC-Tool software V4. If you also need a dedicated subwoofer channel, the Match UP 1FX mono subwoofer amplifier can be connected via the RCA output.

Features

• 7-channel Plug & Play upgrade amplifier with integrated 8-channel 64-bit DSP for BMW HiFi sound systems (option 676)
• Simple installation at the original mounting position via included Plug & Play connection cable
• MATCH Extension Card slot (MEC) for additional input/output modules — Bluetooth Audio Streaming, High Resolution Audio Streaming via USB, etc.
• Augmented Bass Processing: dynamically optimises bass response from under-seat woofers
• StageXpander: significantly broadens the stereo perspective
• RealCenter: delivers focused sound staging for both driver and co-driver
• Start-Stop capability down to 6 V supply voltage
• Optical input in SPDIF format, sampling rate 12–96 kHz
• Mono RCA output for connecting an external amplifier such as a subwoofer amplifier
• Configuration via DSP PC-Tool software V4

Special Features

Class HD technology

The UP 7BMW combines Class H technology with a Class D amplifier principle. By varying the internal supply voltage according to input signal amplitude, idle losses are significantly reduced and overall efficiency is kept close to maximum at all times.

Smart high-level input ADEP.3

Modern factory-installed BMW head units use advanced speaker-diagnostic functions. Connecting a standard amplifier can trigger failure messages or cause the loss of specific features such as fader control. The ADEP.3 circuit (Advanced Diagnostics Error Protection, 3rd Generation) prevents these issues without placing unnecessary load on the OE radio's speaker outputs at high volumes.

Start-Stop capability

The switched-mode power supply maintains a constant internal supply voltage even if battery voltage drops to 6 V during engine crank. If supply voltage drops below 10.5 V for more than five seconds, the amplifier enters Protect mode (status LED turns red) to prevent further battery discharge.

Automatic Digital Signal Detection

The UP 7BMW switches automatically from the analogue input to the digital input as soon as a signal is detected on the optical input. This can be deactivated in the DSP PC-Tool software, or an optional remote control can be used for manual input switching.

Power Save Mode

In many modern vehicles with CAN or other internal bus structures, the radio may remain active for up to 45 minutes after locking the car. Once Power Save Mode activates, the remote output — and any connected amplifiers — will switch off. The UP 7BMW reactivates the remote output within one second when a music signal is detected. The 60-second turn-off delay can be adjusted or Power Save Mode disabled entirely via the DSP PC-Tool software.

Technical Data

• Output power RMS / max. @ 4 ohms: 5 x 65 / 130 W (front / rear / centre channels)
• Subwoofer output @ 2 ohms: 2 x 160 / 320 W
• Amplifier technology: Class HD
• Inputs: 4 x high-level speaker input, 1 x optical SPDIF (12–96 kHz), 1 x MEC, 1 x remote in
• Input sensitivity high-level: 2.0–8.3 V
• Input impedance high-level: 13 ohms
• Outputs: 7 x speaker output, 1 x RCA/