Musical Fidelity M6s PRX
230 W/channel stereo power amplifier with CRPS regulated power supply, designed to drive demanding speakers with precision.
Description
The M6s PRX is a stereo power amplifier from Musical Fidelity, intended to complement a preamplifier within a hi-fi system. It delivers 230 watts per channel into 8 Ohms and is aimed at configurations where a dedicated power stage is sought.
Its choke-regulated power supply (CRPS) shares technology with the brand's Titan and AMS50 models, giving it enhanced control over the energy delivered to the speakers. With a total harmonic distortion of less than 0.007% typical and a signal-to-noise ratio greater than 120 dB, the unit aims for clean reproduction and very low background noise. Its frequency response extends from 10 Hz to 100 kHz (+0/-1 dB), reflecting a wide bandwidth that comfortably exceeds the range of human hearing.
The amplifier features two switchable sets of inputs and line output sockets, allowing it to be easily integrated into a bi-amping or even tri-amping configuration.
This type of amplifier suits a demanding hi-fi system, particularly where the user wishes to drive current-hungry speakers with a comfortable power reserve and good long-term stability.
Technical specifications
| Power | 230 W per channel into 8 Ohms (24 dBW) |
| THD (+ noise) | < 0.007% typical |
| Signal to noise ratio | > 120 dB |
| Frequency response | +0, -1dB, 10Hz to 100kHz |
| Dimensions (H × W × D) | 125 x 440 x 395 mm |
| Weight | 19.7 kg |
What to check before buying used
With this type of power amplifier, attention should be paid to the CRPS regulated power supply: ageing of the capacitors or regulation circuit can result in reduced dynamics or humming. It is worth checking the condition of the potentiometers and input switches, as well as confirming that both channels perform equally after prolonged use. Checking the ventilation and chassis temperature under normal use also helps ensure that heat dissipation remains adequate after several years of service.
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