Pioneer PD-M6
¥ 89,800 (around 1986)
Commentary
A CD changer that can store up to six CDs in a magazine and play them all together.
Uses a disk stabilizer that clamps the disk surface at six points, three inside and three outside of the disk table.
This eliminates the vibration that occurs when the disk rotates.
A linear servo system has been adopted to further improve the basic characteristics of the pickup, eliminate unnecessary resonance and crosstalk of the actuator, and prevent sound skipping by appropriate servo characteristics and gain control.
We have adopted an in-house developed pickup.
By adopting an aspherical objective lens and a compound lens, transmission loss of laser power is reduced and heat generation of laser diode is suppressed.
We have adopted a pure transmission system to achieve higher purity transmission.
The digital circuit is clearly separated from the analog circuit, and the digital part reduces unnecessary vibration of the disk due to the disk stabilizer and eliminates the adverse effect of external noise on the digital signal.
In the audio section, a low-noise low-output impedance regulator is placed close to the audio circuit on the PCB to supply each block circuit with reduced impedance rise.
In addition, the use of IC common to L and R is eliminated, and L and R symmetrical straight pattern is adopted.
The insulator is made of material with high rigidity and high vibration damping rate.
In addition, the optical system part that avoids vibration is equipped with audio insulation that only floats the mechanical part inside the equipment and blocks external vibration.
Carefully selected parts are used for higher purity transmission.
For the small-capacity capacitor, we have adopted a copper foil Styrofoam capacitor using oxygen-free copper (OFC) for the electrodes, and for the carbon resistance, we have adopted brass capped carbon for the lead-out part to reduce distortion.
You can freely program up to 32 songs from 6 CDs.
It also has a function to play back randomly from 6 CDs.
It is equipped with an FL graphic display that can display with 6 disc marks so that you can see how many discs are being played.
Equipped with a pause program function to prevent failures when editing tapes.
It is equipped with a direct programming function that can be programmed immediately while listening to the music.
Equipped with a headphone port with volume.
Not only 6 magazines but also 1 performance magazine is included. Also, each magazine was sold separately.
Subcode output terminal is mounted.
A remote control is included.
Model Rating
| Type | CD changer |
| Pick-up | Three beam semiconductor laser system |
| DA Conversion | 16-bit straight line |
| Frequency Response (EIAJ) | 4 Hz to 20 kHz, + 0.5 -1.0 dB |
| Signal-to-noise ratio (EIAJ) | 98 dB or more |
| Dynamic Range (EIAJ) | 94 dB or more |
| Channel Separation (EIAJ) | 92 dB or more |
| Wow & flutter (EIAJ) | Measurement limit (± 0.001% W. Peak) or less |
| Total Harmonic Distortion Factor (EIAJ) | Not more than 0.005% |
| Output Voltage (EIAJ) | 2 V ± 0.5 V |
| Number of channels | 2 channels (stereo) |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 16W |
| External dimensions | Width 457x Height 104x Depth 315 mm |
| Weight | 6.7kg |
| Attachment | Six piece performance magazine Single playing magazine Wireless Remote Control CU-PD001 |
| Sold Separately | 6-piece performance magazine JD-M6 (¥ 2,000) Performance Magazine JD-S1 (¥ 2,000) |