CEC CD5300

Commentary

A CD player equipped with current injection circuit and LEF circuit.

In place of the conventional operational amplifier, it is equipped with CEC's own current injection circuit and LEF (load effect free) circuit. This completely eliminates the NFB loop and enables signal processing in one stage. In addition, high-speed and low-distortion transmission is achieved by fully balanced signal processing.
The circuit is composed of pure class A operation.

In the power supply section, contamination is removed through an AC line filter, and the high-voltage power supply is purified by a primary high-frequency switching regulator.
In addition, a PWM (pulse width modulation) switching regulator and a high-frequency isolation transformer for the secondary side low voltage are arranged independently for the servo system and the audio signal system respectively to eliminate mutual interference. In addition, both primary and secondary switching regulator outputs are passed through multi-stage line filters to stabilize and clean the power supply.
(It is recommended that the ground terminal of the AC cable be connected to ground in order to enhance the performance of the line filter.)

The D/A converter uses two PCMs 1796 for 24bit/192kHz.
The PCM1796 adopts the advanced segment system which was developed in Shinkai by fusing the multi-bit system and the delta-sigma system to obtain excellent dynamic characteristics.
As an optional function of the DAC circuit, it is equipped with a filter selection function that can be controlled by a remote controller. This function allows you to switch between "FLAT", which enables more linear playback, and "SOFT", which naturally attenuates at 20 kHz.
In addition, it is equipped with a Dither switch to reduce distortion of ultra-fine level signals, and a ⊿ Σ -FS function to switch over the oversampling rate in three stages.

The digital outputs are equipped with an optical, coaxial and XLR Route 3.
There are two types of analog outputs, balanced and unbalanced.

Model Rating

Type	CD Player
<Audio section>
Playable disc	General music CDs Finalized music CD-R/RW
Frequency characteristic	20 Hz ~ 20 kHz + 0 -0.3 dB
Signal-to-noise ratio	XLR:113dB RCA:106dB
Total harmonic distortion factor	XLR:0.004% RCA:0.012%
Channel separation	XLR : 100 dB or more RCA : 90 dB or higher
Dynamic range	97dB
<DAC Part>
DAC	2 x Bar Brown PCM 1796
⊿ Σ oversampling rate	32 fs, 64 fs, 128 fs (switchable)
Dither	On / off (switchable)
Digital filter	Flat, Soft (switchable)
<Output>
Analog output	XLR : 4 vrms (2nd hot) RCA:2Vrms
Digital output	Toslink : 1 system Coaxial : One system AES/EBU : 1 series (XLR / 2nd hot)
Headphone out	6.3mmx1 system
<General>
Pwer	100 VAC, 50Hz/60Hz
Power consumption	15W
External dimensions	Width 435x Height 115x Depth 310 mm (terminal and button not included)
Weight	8.5kg
Attachment	AC Cable Remote control