Product description

    Internally the M5si is configured as two independent monoblocs with a separate preamp, but all mounted on one pcb. Its technical performance is about equal to the M6si. 

    The M5si has very low distortion, outstanding noise ratio and an extremely flat frequency response.  Inputs; phono ( mm ), 4 line, and USB ’B’ up to 24bit 96kHz.

    The M5si produces an extraordinary sweet clear lucid sound. Significantly it was developed after our amazing legendary Nu-Vista 800. Consequently some of the Nu-Vista 800’s subtle pcb layout solutions have found their way into the M5si.

    When you hear it we are sure you will understand the relationship between the two. The M5si projects a deep and wide stereo image with very extended bass and a crystalline top end without a trace of harshness. 

    Musical Fidelity M5SI Amplifier User's Manual


    The M5si In Brief

    - 150wpc

    - Excellent technical performance

    - Preamp output

    - Unconditional stability, will drive any loudspeaker

    - Wide range of useful inputs including asynchronous USB and MM phono

    - Excellent hunky build quality


    Power output: 150 Watts per channel into 8 Ohms

    THD ( + noise ): <0.010 % typical 20Hz - 20 kHz

    Signal to Noise Ratio: >100dB ‘A’ - weighted

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


    4x Line Level RCA

    1x USB type ‘B’ connector - asynchronous data stream at up to 24-bit / 96kHz

    1 x MM phono input

    Trigger in

    Phono Input

    Sensitivity: 3mV nominal ( MM )

    Signal / noise ratio: >70dB ‘A’-weighted

    Input impedance: 50k Ohms ( MM )

    Frequency response: RIAA/IEC ±0.5dB 20Hz-20kHz


    Trigger out

    Fixed, line level output

    Variable, preamp output


    Dimensions - WxHxD ( mm ): 440 x 100 x 405

    Weight ( unpacked / packed ): 14.6 kg / 18.8 kg

    Contact us to inquire how you can finance your purchase through our partner, Synchrony.

    Available in store


    Forgot your password?

    • All your orders and returns in one place
    • The ordering process is even faster
    • Your shopping cart stored, always and everywhere