Musical Fidelity M2si Integrated Amplifier
Purist Class A/B integrated amplifier with high current output, minimal design, and refined musical performance.
Product Overview
The Musical Fidelity M2si is designed to bring flagship amplifier qualities into a more accessible form.
With a fully discrete Class A/B output stage and separate power supply sections for the preamp and main amplifier, it aims to deliver clean, dynamic sound with minimal interference. :contentReference[oaicite:0]{index=0}
It deliberately omits digital inputs, phono stages or extra features, focusing instead on analog purity and excellent core performance. :contentReference[oaicite:1]{index=1}
Connectivity includes six line-level RCA inputs and a home theater bypass (HT) input so the M2si can be used as the power amplifier in a multi-channel setup. :contentReference[oaicite:2]{index=2}
Key Features
- 72 W per channel into 8 Ω, 137 W into 4 Ω (peak 242 W into 2 Ω) :contentReference[oaicite:3]{index=3}
- Fully discrete Class A/B output stage with robust current delivery :contentReference[oaicite:4]{index=4}
- Separate power supplies for preamp and power amp for lower noise & better isolation :contentReference[oaicite:5]{index=5}
- High-quality Burr-Brown stepped attenuator ensures precise channel matching :contentReference[oaicite:6]{index=6}
- No digital circuit or phono stage — pure analog signal path :contentReference[oaicite:7]{index=7}
- HT (home theater) bypass input lets you use M2si as front channel amp in a multi-channel setup :contentReference[oaicite:8]{index=8}
- Six line-level inputs + pre-out & tape outputs for system flexibility :contentReference[oaicite:9]{index=9}
- Solid metal construction: extruded aluminium front panel, robust chassis to reduce interference :contentReference[oaicite:10]{index=10}
Technical Specifications
| Amplifier Class | Fully discrete Class A/B :contentReference[oaicite:11]{index=11} |
|---|---|
| Power Output (8 Ω) | 72 W × 2 :contentReference[oaicite:12]{index=12} |
| Power Output (4 Ω) | 137 W × 2 :contentReference[oaicite:13]{index=13} |
| Peak Output (2 Ω) | 242 W (peak) :contentReference[oaicite:14]{index=14} |
| THD + Noise (line) | < 0.014 % typical (20 Hz – 20 kHz) :contentReference[oaicite:15]{index=15} |
| Signal-to-Noise Ratio (A-weighted) | > 96 dB :contentReference[oaicite:16]{index=16} |
| Input Impedance (Line) | ~ 40 kΩ :contentReference[oaicite:17]{index=17} |
| Frequency Response | +0 / −0.1 dB, 10 Hz – 20 kHz :contentReference[oaicite:18]{index=18} |
| Damping Factor | ≈ 36 :contentReference[oaicite:19]{index=19} |
| Current Delivery (Peak) | ≈ 25 A (peak) :contentReference[oaicite:20]{index=20} |
| Line Inputs | 6 × RCA line-level inputs (one switchable to HT bypass) :contentReference[oaicite:21]{index=21} |
| Outputs | Pre-out, Tape-out, Speaker terminals (2 pairs) :contentReference[oaicite:22]{index=22} |
| Power Consumption (max) | 320 W :contentReference[oaicite:23]{index=23} |
| Dimensions (W × H × D) | 440 × 100 × 400 mm :contentReference[oaicite:24]{index=24} |
| Weight (unit only) | 9.2 kg :contentReference[oaicite:25]{index=25} |
