Musical Fidelity M6si500 Integrated Amplifier (Black)



SKU: M6si500 Black Refurb



The M6si500 is an integrated amplifier that can easily drive
any pair of speakers, without distortion or strain.

The M6si500 is a very high performance, high powered super
integrated amplifier. Twenty-five years ago, the Musical Fidelity A1000 started
the complete super integrated amplifier genre. Over the last two and half
decades we have continued to refine our original concept.

The M6si500 offers a comfortable 500 watts per channel,
incredible load driving ability, outstanding technical performance and solidly
engineered build quality. This remarkable integrated amp will drive any
loudspeaker virtually perfectly and to its maximum potential.

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

Listening to the M6si500 is a sensuous experience. It
produces an effortless, silky sound with huge dynamics. The sound stage is
broad and deep. Even if you aren’t in the market for an amplifier at this
level, you should listen to it to better understand why it is generating such

M6si500 In Brief

  • 500WPC
  • Fantastic
    technical performance
  • Amazing
    load driving ability, will drive any loudspeaker with ease
  • Five
    inputs – Balanced XLR, CD, Tuner, Aux / HT, Tape
  • Preamp
    and fixed line outputs
  • Home
    Theatre bypass
  • Internally
    it is a separate preamp with two independent monobloc power amps;
    effectively a separates system in a box
  • Excellent,
    he-man build quality

The M6si500 offers prodigious power – 500 Watts per channel
into 8ohms – but there’s so much more to it than muscle.

The M6si500 has a high-quality metal build that gives it
both distinctive style and a solid performance platform. The front panel is a
bespoke, fine-line extrusion of military-grade aluminum, while the heatsinks
are also custom-made for outstanding dissipation plus a fine finish.

We have engineered the M6si500 as a genuine dual-mono
design. Each power amp section has its own heat sink and separate transformer,
while the preamp has its own power-supply winding.

The five input sockets are connected directly to the main
preamp circuit board, instead of using wire connections. This ultra-short
signal path ensures ultra-low impedance from the instant sources feed into the

Meanwhile, each channel has 12 big bipolar transistors; 200
amps peak-to-peak performance is readily available.

In addition, a precision digital volume control – using
laser-trimmed substrate resistors – ensures perfect tracking right down to very
low listening levels.

Such attention to detail delivers stellar technical
performance. For example, distortion levels are remarkably low – around 0.008%
at 1kHz and 0.015% at 20kHz, and only marginally rising to 0.02% at ultra-high
frequencies of 30-50kHz. Signal-to-noise ratio is also minimal.

The M6si500 has remarkable linearity and consistency,
enabling it to drive any speaker with ample power reserve. It sounds
effortless, fluid and dynamic: the way the very best amplifiers should.

M6si500 – Specifications


  • 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

Additional information

Weight 0.00000000 lbs


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