Musical Fidelity M8S 500S - Power Amplifier

The M8s-500s is a premium dual-channel (stereo) power amplifier designed for audiophiles who want both brute force and fidelity in a single chassis. Each channel delivers 500 watts into 8 ohms, with higher power available into lower impedances, offering excellent headroom. The build is fully balanced, and the amplifier maintains extremely low distortion: typically < 0.007% THD+N (20 Hz-20 kHz), signal-to-noise ratio over 120 dB (“A-weighted”), and a wide frequency response of 10 Hz to 80 kHz (±1 dB). It has both balanced (XLR) and unbalanced (RCA) line-level inputs, and loop-through outputs for both, plus trigger input/output for automation. The unit is large and solidly built (≈ 440 × 160 × 460 mm, ~29 kg unpacked), with capacious internal power supply and robust heatsinking to cope with demanding loads and maintain performance under stress. It’s made to drive difficult loudspeakers with authority while staying neutral, clean, and detailed. Musical Fidelity+2henleyaudio.co.uk+2

Description

The M8s-500s is a Power Amplifier fit for the highest levels of reproduction.

The M8-700 has received outstanding reviews and an enthusiastic reception from knowledgeable audiophiles. The combination of high power and cutting-edge technical performance has proved a compelling combination. However, some customers do not have the space for two large monoblocs and do not necessarily need that much power. For them, Musical Fidelity has designed the M8s-500s. Pairing it with the matching M8 Preamp gives an amplification system fit for the highest levels of reproduction.

Warranty:

1-year manufacturer’s warranty

DESIGN + BUILD
The M8s-500s is a fully balanced stereo amplifier that delivers 500wpc, which almost doubles in 4ohms. The M8s-500s is engineered for very low distortion, typically less than .001% of 1kz and below .005% at 20kHz. Even at the ridiculous level of 50kHz distortion is a mere 0.02% creeping up to around 0.06% at the even more unreasonable figure of 100kHz. These may be measurements of frequencies never encountered in the real world, but they prove a point: that the M8s-500s have significantly less distortion than rival designs.

Like the M8-700m, the M8s-500s have very low noise. Its combination of huge power reserves, low distortion, and low noise contributes to its effortless performance. It delivers everything from delicate detail to massive dynamic slam with incredible speed and precision.

Whatever style of music you listen to, the M8s-500s serves it up in a spacious sound stage with outstanding realism.

Its power and balance mean that the M8s-500s can drive just about any loudspeaker you choose. It is, of course, the perfect partner/visually and sonically, for their M8 preamp.

Technical Specifications:

Performance	Power output: 500 Watts per channel into 8 Ohms (27 dBW) THD(+ noise): <0.007% typical Signal to Noise Ratio: >120dB ‘A’ weighted Frequency Response: +0, –1dB, 10Hz to 80kHz
Inputs	1x RCA Phono Line Level 1x Line level XLR Balanced 1x Trigger input 3.5mm (⅛”) mono jack ±4.5 to ±15V DC
Outputs	1x RCA Phono Line Level (loop output) 1x Line level XLR Balanced (loop output) 1x Trigger output 3.5mm (⅛”) mono jack 12V DC
General	Dimensions – WxHxD (mm): 440 x 160 x 460 Weight (unpacked/packed): 29 kg / 34.5 kg