Musical Fidelity M6SI STREAM
Image source — © Musical Fidelity
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Model name
M6SI STREAM
Type
Integrated Amplifier with DAC, Phono and Streamer
Analog inputs (balanced)
1
Analog inputs (single-ended)
4
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
Yes
Phono MM/MC current-sensing input impedance (Ω)
47 000
Output power (8Ω) (W)
220
Output power (4Ω) (W)
380
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
10
Frequency response high +/- 3dB (Hz)
20 000
Signal to Noise Ratio (dB)
>107
Total Harmonic Distortion + Noise (%)
<0.007
Damping factor
N/A
Dimensions (mm)
440 x 125 x 400
Weight (kg)
16.6
Official link
The Musical Fidelity M2si provides 72 watts per channel at 8 ohms and 137 watts at 4 ohms. This means that the M2 si will drive a wide range of speakers, even models with high power consumption. The fully discrete power amplifier, complemented by its dedicated power supply and lavishly designed toroidal transformer, guarantees reserves for proper peak power and wide dynamic range.
The device is made according to the classical "double mono" scheme, which ensures the identity of the characteristics of the left and right channels. The level of its nonlinear distortion, measured at a frequency of 1 kHz, does not exceed 0.007%, and at a frequency of 10 kHz it is only 0.01%.
The Musical Fidelity M5si integrated circuit is a representative of the M5s line. In terms of ideology, design and basic indicators, it is closer to the M6si than to the budget M3si. And although this model does not use nuvistors, the company positions it as the successor to the flagship Nu-Vista 800.
The Musical Fidelity M6 500i amplifier has a power of 500 watts per channel with an impedance of 8 ohms. The latest electrical circuit provides unsurpassed stability and linearity. The distortion is extremely small, at 0.008% at 1 kHz and 0.015% at 20 kHz. But what is even more significant is the low distortion at ultra-high frequencies. For example, at 30 kHz they are 0.02%, and at 50 kHz they are 0.2%. Its impeccable linearity and solid power reserve allow this amplifier to work with any speaker system.
The Musical Fidelity M6cd integrated amplifier is built according to a three-block circuit consisting of two identical power amplifiers and a monoblock preamp. The power amplifiers and the preamp unit are powered from separate sources with powerful filtering capacitors. Despite the monoblock design of the preamp, engineers have taken special measures to ensure maximum identity of the characteristics of the left and right channels.