Musical Fidelity M6si500 Integrated Amplifier 500W silver

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

The M6si500 delivers 500 watts per channel of power, incredible load-driving capability, outstanding technical performance, and solidly engineered build quality. This extraordinary integrated amplifier will drive any loudspeaker to near perfection and its full potential.

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

Listening to the M6si500 is a sensual experience. It produces smooth, effortless sound with enormous dynamics. The soundstage is wide and deep. Even if you're not looking for an amplifier at this level, you should give it a listen to better understand why it's generating so much excitement.

M6si500 at a glance

500WPC

Fantastic technical performance

Incredible load driving ability, will drive any speaker with ease

Five inputs: Balanced XLR, CD, Tuner, Aux/HT, Tape

Fixed preamp and line outputs

Home Theatre Bypass

Internally it's a separate preamp with two independent monoblock power amplifiers; essentially a separates system in a box

Excellent real man build quality

The M6si500 packs a prodigious amount of power: 500 Watts per channel into 8 ohms, but it packs a lot more than just power.

The M6si500 has a high-quality metal construction that gives it both distinctive styling and a solid performance platform. The front panel is a slim, custom-made extrusion of military-grade aluminium, while the heat sinks are also custom-made for exceptional dissipation and a refined finish.

We designed the M6si500 as a true dual-mono design. Each power amplifier section has its own separate heat sink and transformer, while the preamp has its own power winding.

The five input sockets are connected directly to the main preamp circuit board, rather than using cable connections. This ultra-short signal path ensures ultra-low impedance from the instantaneous sources feeding the M6si500.

Meanwhile, each channel is equipped with 12 large bipolar transistors; 200 amps peak-to-peak performance is readily available.

Furthermore, a precision digital volume control, using laser-cut substrate resistors, ensures perfect tracking even at very low listening levels.

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

The M6si500 has remarkable linearity and consistency, allowing it to drive any speaker with plenty of power in reserve. It sounds effortless, smooth and dynamic – the way the best amplifiers should.

FEATURES

Amplifier

Power output: 500 Watts per channel into 8 Ohms (27 dBW)

THD(+noise): <0.01% typical, 20Hz to 20kHz

Signal-to-noise ratio: >100dB 'A' weighted

Frequency response: +0, –0.1dB, 10Hz to 20kHz

Inputs

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

Outputs

1 x RCA pre-out

1 x fixed RCA in output

General

Dimensions - WxHxD (mm): 440 x 160 x 460

Weight (unpacked/packed): 30 kg/ 35 kg