Match UP 8DSP MK2 – 8-channel Class GD upgrade amplifier with 9-channel 64-bit DSP
The MATCH UP 8DSP MK2 is the 8-channel member of the MATCH UPGRADE amplifier family. It combines an 8-channel Class GD amplifier with an integrated 9-channel 64-bit DSP and is designed to upgrade factory sound systems while keeping the installation OEM-friendly: six high-level inputs tap the original speaker signals, and the amplifier drives six main channels plus two subwoofer channels.
The MK2 generation adds a USB-C port and an Extension Card 2.0 slot. Audiotec Fischer technologies such as Class GD, the ACO 32-bit platform, ADEP.3, SOP Max and Virtual Channel Processing are on board, and set-up is done with DSP PC-Tool 6 including TuneEQ 2.0 and TuneToTarget.
Key Features
- 8 amplifier channels, 9 DSP channels: 6 × 65 W RMS at 4 Ω plus two subwoofer channels rated up to 90 W RMS at 4 Ω or 160 W RMS at 2 Ω (maximum, typical multi-channel use).
- 6 high-level inputs with ADEP.3: compatible with many factory head units without diagnostic errors or loss of functions such as the fader.
- Class GD: stepwise supply voltage control based on the input signal for high efficiency and low idle losses.
- EV-ready: input voltage range up to 18 V.
- ACO 32-bit platform: AISA and Input EQ, Dynamic Loudness Control, Remote Tone Control, TuneEQ and SFX (Augmented Bass Processing, RealCenter); fast start-up and up to ten sound setups.
- Virtual Channel Processing: cross-channel group EQs, multi-way SFX configuration and Rear Attenuation for front, rear and centre set-ups.
- 1:1 input-to-output routing: with the optional Extension Card 2.0 ANALOG IN.
- SOP Max: stable output power across changes in input voltage.
- Extension Card 2.0 slot: for add-ons such as Bluetooth HD or additional analogue or digital inputs.
- Optical SPDIF input: 12–96 kHz with automatic digital signal detection.
- Mono RCA output and SCP: for an external amplifier such as the MATCH UP 1FX, and for remotes and accessories.
- Start-stop capable down to 6 V: with auto remote switch, Power Save Mode and compact, low-heat design.
Inputs & Outputs
- Inputs: 6 × high-level speaker input, 1 × optical SPDIF (12–96 kHz), 1 × Extension Card 2.0 slot.
- High-level input sensitivity 2.8–11 V; input impedance 9–33 Ω with ADEP.3.
- Outputs: 8 × speaker output, 1 × RCA (mono), 1 × remote out; RCA output voltage 3 V RMS; max. remote output current 500 mA.
- USB-C port for DSP PC-Tool 6.
Power & Amplifier Section
- Channels A–F: 65 W RMS each at 4 Ω (≤ 1 % THD+N, min. 3 Ω DC resistance); up to 80 W RMS at 4 Ω in typical multi-channel applications.
- Channels G–H: 75 W RMS at 4 Ω and 125 W RMS at 2 Ω (≤ 1 % THD+N); up to 90 W RMS at 4 Ω and 160 W RMS at 2 Ω in typical multi-channel applications.
- Class GD with dynamically controlled power supply and SOP Max.
- Frequency response 15 Hz – 22 kHz; THD < 0.015 %, THD+N < 0.02 % (1 kHz, 1 W into 4 Ω).
- SNR: 104 dB digital input, 100 dB analogue input (A-weighted).
- Operating voltage 10.5–18 V (max. 5 s down to 6 V); power rating DC 12 V, 40 A max.; idle current 380 mA.
- Fusing: 2 × 25 A LP-Mini (APS); operating temperature −40 °C to +70 °C.
DSP & Sound Tuning
The 9-channel DSP works with 64-bit resolution, a 295 MHz processing core (1.2 billion MAC operations per second) and a 48 kHz sampling rate, with BurrBrown A/D and D/A converters. Set-up is done with DSP PC-Tool 6, which includes TuneEQ 2.0 and TuneToTarget for automated frequency response correction.
- TuneEQ 2.0: automated frequency response correction – a single measurement per channel or channel pair with a measurement microphone (the page names the AMI Tuning Kit) is enough for the software to set the parametric EQ bands (centre frequency, Q and gain) towards a target curve.
- RealCenter: derives a centre signal only from the content common to the front left and right channels; its level follows the stereo content, so material present on only one side produces no centre output.
- Augmented Bass Processing: combines Dynamic Bass Enhancement (input-dependent low-frequency boost and subsonic filter adjustment) with SubXpander, which adds subharmonics between 50 and 100 Hz for a deeper bass.
- VCP (Virtual Channel Processing): multi-stage virtual routing for multi-way front, rear and centre systems, with cross-channel group EQs, multi-way configuration of the SFX effects and Rear Attenuation.
- ACO functions: AISA (Advanced Input Signal Analyzer) with channel-separated Input EQ to analyse and correct the factory head unit’s signal, plus Dynamic Loudness Control (DLC) and Remote Tone Control (RTC) for volume-dependent adjustment of lows and highs.
- Sound setups: the ACO allows switching between up to ten sound setups.
Installation & Connectivity Notes
- Dimensions 46 × 130 × 153 mm (H × W × D).
- Optional cable harnesses are available for easy integration into factory systems.
- Auto remote switch – no external remote signal is required.
- Power Save Mode switches off the amplifier stages and remote output after a period without signal; the unit resumes in about 2 seconds. The delay is adjustable or can be disabled in DSP PC-Tool.
- Automatic digital signal detection switches to the optical input when a signal is present; it can be disabled in DSP PC-Tool or switched manually with a remote.
Technical Specifications
| Power RMS ≤ 1% THD+N | |
| – @ 4 Ohms | Channels A – F: 65 Watts (min. 3 Ohms*) Channels G – H: 75 Watts (min. 3 Ohms*) |
| – @ 2 Ohms | Channels G – H: 125 Watts |
| – @ 1 Ohm | – |
| – bridged @ 4 Ohms | – |
| – bridged @ 2 Ohms | – |
| Max. output power per channel** | Channels A – F: up to 80 Watts RMS @ 4 Ohms Channels G – H: up to 90 Watts RMS @ 4 Ohms Channels G – H: up to 160 Watts RMS @ 2 Ohms |
| Amplifier technology | Class GD |
| Inputs | 6 x Highlevel speaker input 1 x Optical SPDIF (12 – 96 kHz) 1 x Extension Card 2.0 |
| Input sensitivity | 2.8 – 11 Volts |
| Input impedance RCA / Cinch | – |
| Input impedance highlevel | 9 – 33 Ohms with ADEP.3 |
| Outputs | 8 x Speaker output 1 x RCA / Cinch 1 x Remote Out |
| Output voltage RCA / Cinch | 3 Volts RMS |
| Frequency response | 15 Hz – 22,000 Hz |
| DSP resolution | 64 Bit |
| DSP power | 295 MHz (1.2 billion MAC operations/second) |
| Sampling rate | 48 kHz |
| DSP type | Audio signal processor |
| Signal converters | A/D: BurrBrown D/A: BurrBrown |
| Signal-to-noise ratio digital input | 104 dB (A-weighted) |
| Signal-to-noise ratio analog input | 100 dB (A-weighted) |
| Distortion (THD @ 1 kHz, 1 W into 4 Ohms) | < 0.015 % |
| Distortion (THD+N @ 1 kHz, 1 W into 4 Ohms) | < 0.02 % |
| Distortion (THD @ 100 Hz, 1 W into 4 Ohms) | – |
| Distortion (THD+N @ 100 Hz, 1 W into 4 Ohms) | – |
| Operating voltage | 10.5 – 18 Volts (max. 5 sec. down to 6 Volts) |
| Power rating | DC 12 V ⎓ 40 A max. |
| Idle current | 380 mA |
| Max. remote output current | 500 mA |
| Operating temperature range | -40° C to +70° C |
| Fuse | 2 x 25 A LP-Mini-fuse (APS) |
| Additional features | Class GD technology with dynamically controlled power supply, 32 Bit CoProcessor, ADEP.3 circuit, Start-Stop capability, Smart Control Port, USB-C, Auto Remote switch |
| Dimensions (H x W x D) | 46 x 130 x 153 mm / 1.81 x 5.12 x 6.02″ |
* DC resistance min. 3.0 Ohms
** In typical multi-channel applications
Scope of Delivery
1 x MATCH UPGRADE amplifier UP 8DSP MK2
4 x Connection cable
1 x Power Input connector
1 x Mounting plates & material
1 x USB cable
1 x Instruction manual
