The Musical Fidelity M6scd is a CD player in the M6 series that the company also designed as a digital hub for external sources. Alongside disc playback it accepts five external digital feeds through a pair of coaxial sockets, a pair of optical sockets and an asynchronous USB port, an arrangement Musical Fidelity suggests for connecting set-top boxes or improving television sound. The maker lists very good disc readability and low jitter among its aims.
Key specs that matter
Decoding relies on a 32-bit Delta-Sigma bitstream DAC run in dual differential mode with 8x oversampling, and incoming data is upsampled to 192 kHz. Frequency response runs from 10 Hz to 20 kHz with no more than -0.2 dB deviation. Signal-to-noise ratio exceeds 117 dB, THD plus noise remains below 0.003 percent from 10 Hz to 20 kHz, and linearity holds within 0.1 dB down to -96 dB. Jitter is below 135 picoseconds peak to peak, and channel separation is 105 dB between 20 Hz and 20 kHz.
Engineering and use context
Both coaxial inputs accept 16 to 24-bit stereo PCM at sample rates from 32 kHz up to the upsampling rate, while the two Toslink inputs cover 32 to 96 kHz. The USB type B connection carries an asynchronous stream at up to 24-bit and 96 kHz, which lets the player's own clock govern the data from a computer. For analogue connection the rear panel carries unbalanced RCA outputs as well as balanced XLR outputs. Digital RCA coaxial and Toslink optical outputs send an S/PDIF signal onward to another converter or a recorder, and trigger input and output sockets tie its power state to the other units. The disc loading mechanism is carried over from the preceding M6CD, which had a record of reliable long-term use, and a toroidal transformer is mounted centrally inside the case. The chassis is 440 mm wide, 125 mm high and 385 mm deep, and it weighs 11.2 kg on its own or 15.5 kg packed. Silver and black versions are offered, and the US price is USD 2,799.
Pairing
The balanced XLR output makes the M6scd a direct match for amplifiers with balanced inputs, while the unbalanced sockets serve standard line inputs. The supplied remote covers functions including track programming and A-B repeat. With four S/PDIF inputs and USB on board, a streamer, a television and a computer can all be connected at once without an extra DAC. The trigger link enables a system to power up from a single switch.
Alternatives
Musical Fidelity's M3scd is a smaller CD player from the same company.