Musical Fidelity M6SI500 (DEMO)

SKU: M6SI500-1 Brand:

Original price was: 5 899,00 $.Current price is: 4 499,00 $.

Only 1 left in stock




The M6si500 is a super integrated amplifier that delivers exceptional performance and high power. This amplifier represents a continuation of the genre that began with the Musical Fidelity A1000 twenty-five years ago, and it has been refined over the years.

With a substantial 500 watts per channel, impressive load-driving capabilities, outstanding technical performance, and robust engineering, the M6si500 is a remarkable integrated amplifier that can effortlessly drive almost any loudspeaker to its maximum potential.

It features five inputs: 4 x line inputs and 1 x balanced XLR input.

Listening to the M6si500 is a truly immersive experience. It produces a smooth, silky sound with expansive dynamics. The soundstage is wide and deep. Even if you’re not currently in the market for an amplifier of this caliber, it’s worth listening to it to fully appreciate the enthusiasm it generates.

M6si500 In Brief

  • 500 watts per channel
  • Exceptional technical performance
  • Outstanding ability to drive various loudspeakers with ease
  • Five inputs: Balanced XLR, CD, Tuner, Aux / HT, Tape
  • Preamp and fixed line outputs
  • Home Theatre bypass
  • Internally designed as a separate preamp with two independent monobloc power amps, effectively creating a complete separates system within a single enclosure
  • Exceptional build quality

The M6si500 packs an impressive 500 Watts per channel into 8 ohms, but it offers more than just raw power.

Constructed with high-quality metal components, the M6si500 boasts a distinctive style and a robust foundation for top-notch performance. Its front panel is a custom-made, precision-crafted extrusion of military-grade aluminum, while the heatsinks are designed for efficient heat dissipation and a refined appearance.

We’ve meticulously engineered the M6si500 as a true dual-mono design. Each power amp section has its dedicated heatsink and separate transformer, while the preamp enjoys its own power-supply winding.

The five input sockets are directly connected to the main preamp circuit board, eliminating the need for wire connections. This ultra-short signal path ensures ultra-low impedance from the moment your audio sources feed into the M6si500.

Furthermore, each channel features 12 large bipolar transistors, capable of peak-to-peak performance of 200 amps. Additionally, a precision digital volume control, employing laser-trimmed substrate resistors, ensures perfect tracking even at very low listening levels.

This meticulous attention to detail results in stellar technical performance. For instance, distortion levels are remarkably low, measuring around 0.008% at 1kHz and 0.015% at 20kHz, with only a marginal increase to 0.02% at ultra-high frequencies of 30-50kHz. The signal-to-noise ratio is also exceptional.

The M6si500 exhibits outstanding linearity and consistency, allowing it to effortlessly drive a wide range of speakers with ample power reserves. Its sound is effortless, fluid, and dynamic, embodying the qualities of the finest amplifiers.


  • Power output: 500 Watts per channel into 8 Ohms (27dBW)
  • THD(+ noise): <0.01% typical, 20Hz to 20 kHz
  • Signal to Noise Ratio: >100dB ‘A’-weighted
  • Frequency Response: +0, –0.1dB, 10Hz to 20 kHz


4 x line level RCA / phono (1 with home theatre bypass)


  • 1 x RCA pre out
  • 1 x RCA fixed out


  • Dimensions – WxHxD (mm): 440 x 160 x 460
  • Weight (unpacked / packed): 30kg/ 35kg