In honor of Cayin’s 30th anniversary, the Pearl series has been released. Pure high-end. The series consists of an integrated amplifier Pearl 30i, a separate DAC Pearl 30d and a CD Transport Pearl 30c. All consist of dual housing in which the power supply is separate from the main unit. This represents the top end and technology in the Cayin product family.

CD Mechanism System:
Adopting Philips VAU1255/31LF CD-PRO2 CD Mechanism. Top loading structure. Signal output from the servo chip output pin through the coaxial cable with low jitter. With further jitter cleaner and driver circuit a pure digital audio signal is output from Pearl 30c CD Transport.

Full-Channel Digital Audio Jitter Cleaner
The integrated full-channel digital audio jitter cleaner (jitter elimination circuit) significantlyreduces the jitter of the SPDIF and IIS signal and thus substantially improves the sound quality. The digital audio data lines and clock lines in the device utilize low-loss, stable impedancematching. The RF coaxial cable transmission reduces signal loss and waveformdistortion andsuppresses jitter.

Ultra Low Phase Noise Synchronized Clock Source
Extremely low phase noise and high frequency stability thermostatic crystal (OCXO, 10MHz), toprovide a reference frequency. Extremely low phase noise multi-channel synchronized clock generator will generate clockfrequency of Digital Circuit and other different functional circuit out of the reference frequencyand provide synchronized clocks for different circuits and instruments. Pearl 30c uses ultra-low loss, stable impedance matching (50 ohms) RF coaxial cable for Clock signal transmission, reducing clock signal loss and waveform distortion to ensure the clock quality and suppress jitter

Synchronized Clock Out and In
Pearl 30c has an external reference clock input interface (10 MHz), a synchronous clock output interface that can be connected to an external clock or used as a synchronization clock source to synchronize the system clocks of different digital device combinations, which will comprehensively improve the playback quality of the entire system and provide an outstanding listening experience.

Upsampling Function:
Built-in asynchronous upsampler providing the option to select between NOS (44.1kHz) or OS(upsample to 192kHz) output modes. You can choose the mode you prefer by the Remote.

Separate Power Supply Unit
Hi-End audio concept design. Physical separate power supply unit to ensure that the transformer, rectifier, filter circuit etc power processing are completely isolated and avoid interference. One Dual C Type of Transformer responsible for Oven Controlled Crystal Oscillator, Clock board, logic circuits and digital audio processing circuit power supply, equipped with high-frequencyinductors, to deal with high-frequecy interference. One Dual C Type of Transformer for power supply to the CD-PRO2 CD Mechanism. One Dual C Type of Choke eliminating low and mid range of frequency interference. Ultra-large scale power supply filtering system: The main board of the power supply unit adopts ten 15000uF high ripple current filtering capacitors and ten 10000uF audio filtering capacitors.

Power Supply of the CD Transport Main Unit
The power supply system of the CD Transport main unit consists of a super-linear voltage stabilization circuit made up of six groups of discrete components. With a set of ultra-lownoise Linear LT1963 voltage regulators, effective voltage stabilization is provided for the high voltage supply. Discrete voltage regulator circuit for power supply to CD-PRO2 CD Mechanism. Ultra-low noise LDOs form a voltage regulator system to supply to Clock chip Si5402A providing pure power supply to ensure the quality of clock signal. OCXO (Oven Controlled Crystal Oscillator) is powered by using LT1963 high-current ultra-lownoise LDO DC power supply. Turning off the power supply of the CD Transport Main unit, the crystal will still continue to be supplied at a constant temperature, so that the clock system canenter into operation once switched on again.

Aviation-grade Power Cable between the Power Supply and CD Transport MainUnit
The connecting cable consists of a connector that utilizes wires with extremely low internal resistance and a highly reliable mechanical structure. The connection system consists of 12-pin aviation connector, Germany LAPP KABEL 12-core 0.75mm² ultra-flexible drag chain cable, VIABLUE encrypted sandwich nylon fiber cotton blend shock-absorbing cable protection sleeve. Both ends of the same type of aviation plug, regardless of direction, easy to connect.

Digital Output Interface
Supports IIS(HDMI-A), AES/EBU(XLR3), Coaxial SPDIF 1(RCA), Coaxial SPDIF 2(BNC), ST Glass Optical, and Toslink Plastic Optical Output.

Reference Clock Interface
External reference clock input connector (10MHz)
Synchronized clock output interface (Frequency Selectable)