Audio Database

Image of the PD 313
Commentary

A CD player developed based on the technological ideas of high-end machines.

It uses a 4-fold oversampling digital filter to raise the sampling frequency from 44.1 kHz to 176.4 kHz by 4 times through arithmetic processing. It enables the use of a low-order low-pass filter, and realizes audio characteristics with low distortion and little phase rotation up to high frequencies.
Separation characteristics are also improved by the independent D/A converter on the left and right sides.

Uses a magnetic clamp type disk stabilizer that fixes the disk with the attraction force of the magnet.
Since it is non-contact type, vibration of the disk is prevented from being transmitted to the pickup and other circuits.

In addition to the floating structure in which the optical system mechanism is lifted from the chassis, a ballast base in which the center of gravity of the mechanical chassis is lowered below the support of the mechanism is adopted.
By fixing this to a ceramic mechanical support with excellent vibration damping characteristics, vibration is suppressed and stable signal reading is realized.

A honeycomb chassis with honeycomb ribs on the bottom plate of the chassis has been adopted to increase rigidity and reduce unnecessary vibration from the outside.

Equipped with auto program edit and pause program functions.

Equipped with a power on start function that enables timer start.

Model Rating
Type CD Player
Pick-up Three beam semiconductor laser system
D/A conversion 16-bit straight line
Frequency Response (EIAJ) 4 Hz to 20 kHz ± 0.5 dB
Signal-to-noise ratio (EIAJ) 102 dB or more
Dynamic Range (EIAJ) 94 dB or more
Channel Separation (EIAJ) 97 dB or more
Wow & flutter (EIAJ) Measurement limit (± 0.001% W. PEAK) or less
Output Voltage (EIAJ) 2.2 V ± 0.3 V
Number of channels 2 channels (stereo)
Digital output Coaxial Output : 0.5Vp-p/75 Ω
Pwer 100 VAC, 50Hz/60Hz
Power consumption 10W
External dimensions Width 420x Height 98x Depth 315 mm
Weight 3.9kg
Attachment Remote control