Match M 2.1AMP – Mono/Stereo Class HD Micro Amplifier
The M 2.1AMP is part of the MATCH micro amplifier line from Audiotec Fischer and is intended for installations where space is very limited. It can be operated as a 2-Ohm-stable mono amplifier for a subwoofer or as a 4-Ohm-stable 2-channel amplifier for front or rear speaker systems, and it is designed to be paired with MATCH UPGRADE DSP amplifiers.
It uses the Class HD concept, which combines Class H and Class D principles: the internal supply voltage follows the input signal, reducing idle losses and heat. High-Res audio bandwidth extends the frequency response beyond 40 kHz, and the very small housing allows hidden installation concepts.
Key Features
- Mono/stereo mode: Switchable between a 2-Ohm-capable mono amplifier and a 4-Ohm-capable 2-channel amplifier.
- Mono power: 1 x 350 W RMS @ 2 Ohms (for 2-Ohm SVC or 4-Ohm DVC subwoofers), 1 x 210 W @ 4 Ohms, up to 430 W RMS @ 2 Ohms maximum.
- Stereo power: 2 x 170 W RMS @ 4 Ohms for front/rear speakers or 4-Ohm SVC subwoofers.
- Class HD technology: Signal-dependent internal supply voltage for high efficiency and low heat.
- High-Res bandwidth: Frequency response 10 Hz – 40,000 Hz.
- Low noise and distortion: 108 dB signal-to-noise ratio (A-weighted) and THD below 0.02 %.
- 2-channel RCA input: With variable input sensitivity.
- Ground switch: Input ground switch to help avoid ground loops.
- Start-Stop capability: Fully stabilised internal supply stays constant even when the battery drops to 6 V during cranking.
- Micro format: 35 x 85 x 110 mm for hidden installations.
- System partner: Ideal combination with MATCH UPGRADE DSP amplifiers.
Inputs & Outputs
- Inputs: 2 x RCA, 1 x remote in; RCA sensitivity 1–6 V, input impedance 10 kOhms.
- Outputs: 2 x speaker output, 1 x remote out.
- No high-level input: The amplifier is fed with line-level signals; a line input-to-RCA adaptor is supplied.
Power & Amplifier Section
- Output power RMS @ 4 Ohms: mono 1 x 210 W, stereo 2 x 170 W.
- Output power RMS @ 2 Ohms: mono 1 x 350 W.
- Maximum output (mono): up to 430 W RMS @ 2 Ohms.
- Damping factor: 100.
- Idle current: 500 mA.
Installation & Connectivity Notes
- Operating voltage: 10.5–17 V, max. 5 s down to 6 V.
- Fuse and power rating: 1 x 30 A LP-Mini fuse (APS); DC 12 V, 40 A max.
- Operating temperature: -40 °C to +70 °C.
- Dimensions (H x W x D): 35 x 85 x 110 mm.
- Typical use: Add-on amplifier for subwoofer or speaker channels in combination with a MATCH UPGRADE DSP amplifier.
Technical Specifications
| Power RMS | Mono Mode | Stereo Mode |
| – @ 4 Ohms | 1 x 210 Watts | 2 x 170 Watts |
| – @ 2 Ohms | 1 x 350 Watts | – |
| – @ 1 Ohm | – | – |
| – bridged @ 4 Ohms | – | – |
| – bridged @ 2 Ohms | – | – |
| Max. output power (Mono Mode) |
Up to 430 Watts RMS @ 2 Ohms | |
| Amplifier technology | Class HD | |
| Inputs | 2 x RCA / Cinch 1 x Remote In |
|
| Input sensitivity | RCA / Cinch 1 – 6 Volts | |
| Input impedance RCA / Cinch | 10 kOhms | |
| Input impedance highlevel | – | |
| Outputs | 2 x Speaker output 1 x Remote Out |
|
| Output voltage RCA / Cinch | – | |
| Signal converter for digital input | – | |
| Frequency response | 10 Hz – 40,000 Hz | |
| Bass boost | – | |
| Highpass | – | |
| Lowpass | – | |
| Bandpass | – | |
| Subsonic | – | |
| Phase | – | |
| Slope high- / lowpass | – | |
| Slope subsonic / lowpass | – | |
| Signal-to-noise ratio digital input | – | |
| Signal-to-noise ratio analog input | 108 dB (A-weighted) | |
| Distortion (THD) | < 0.02 % | |
| Damping factor | 100 | |
| Operating voltage | 10.5 – 17 Volts (max. 5 Sec. down to 6 Volts) | |
| Idle current | 500 mA | |
| Operating temperature range | -40 °C to +70 °C | |
| Fuse | 1 x 30 A LP-Mini-fuse (APS) | |
| Power rating | DC 12 V ⎓ 40 A max. | |
| Additional features | Variable input sensitivity, fully stabilized internal power supply, Start-Stop capability, ground switch, mono / stereo mode | |
| Dimensions (H x W x D) |
35 x 85 x 110 mm / |
* In typical applications as subwoofer amplifier
Scope of Delivery
1 x MATCH micro amplifier M 2.1AMP
1 x Line Input-to-RCA / Cinch adaptor
1 x Mounting material
1 x Instruction manual
