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

M5si - Specifications

Amplifier

• Power output: 150 Watts per channel into 8 Ohms
• THD (+ noise):
• Signal to Noise Ratio: >100dB ‘A’ - weighted
• Frequency Response: +0, –0.1dB, 10Hz 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

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

Outputs

• Trigger out
• Fixed, line level output
• Variable, preamp output

General

• Dimensions - WxHxD (mm): 440 x 100 x 405
• Weight (unpacked / packed): 14.6 kg/ 18.8 kg