Musical Fidelity M5si Integrated Amplifier (BLEM)

  • Sale
  • Regular price $1,999.00
  • $1,699.00

Musical Fidelity M5si Integrated Amplifier (BLEM)

These are stock images, not pictures of the actual unit which has one small scuff on the faceplate.  

SL#: PAY 0061

Fully tested with original packaging. We regret we cannot send photographs of the unit.

Upscale Certified

Upscale Certified Pre-Owned Components are fully bench-tested by an expert technician with over 25 years experience. All vacuum tubes are new or test as new. We further protect your investment with a 90-Day Warranty. Buy used with confidence. Buy Upscale Certified Pre-Owned.


This is a beautifully-engineered amplifier that combines great sound quality with high power output and ‘sultry’ looks that will integrate perfectly with any décor. Highly recommended.


The M5si is a sensational integrated amplifier with exceptional power and clarity.

The M5si is a real high end amplifier. At 150wpc, with high current delivery, it will drive virtually any loudspeaker easily.

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 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 W per channel into 8 ohm
Signal to Noise Ratio: >100 dB ‘A’ - weighted
Frequency Response: +0, –0.1 dB, 10 Hz to 20 kHz
Inputs: 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

3 mV nominal (MM)
Signal / noise ratio: >70 dB ‘A’-weighted
Input impedance: 50 k ohm (MM)
Frequency response: RIAA/IEC ±0.5 dB 20 Hz-20 kHz

Outputs: 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