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Master clock generator
All digital audio equipment has a clock circuit, and the circuit is operated using the clock signal generated there. The master clock generator is an oscillator that supplies the clock from the outside to digital equipment (transport, D / A converter, super audio CD player, network audio player) with the corresponding clock input terminal. By supplying a clock signal of higher purity than the clock generated internally by digital equipment, it improves sound quality.
Highly accurate rubidium oscillator is installed at the heart
A highly accurate rubidium oscillator made in the USA (frequency precision: ± 0.05 ppb = ± 0.00005 ppm) is adopted. Tone quality and stability are given top priority, and by adopting custom specification with quality control dedicated to ESOTERIC, sound quality appropriate for high-end model is realized.
Newly designed wide range clock buffer amplifier
Flagship model The development result of Grandioso G1 “wide range clock buffer amplifier” adopted, further evolved to a wide range than before. Discrete circuits using high-speed transistors with excellent high-frequency characteristics are mounted separately on each output and contribute greatly to improvement of sound quality as audio exclusive oscillator.
“Adaptive · zero ground” mode compatible
Equipped with an “adaptive zero ground” circuit that keeps the ground which is the reference potential of the clock output constantly 0 V for sending the signal of the Grandioso G 1 essence to the buffer amplifier from the internal ruby unit which is important for sound quality. You can choose the difference in sound quality between Adaptive mode and normal mode that is effective for preventing noise (random jitter) caused by fluctuation of the ground voltage.
Power supply boasts power supply power to afford
A newly designed power supply circuit that maximizes the performance of the new design “wide range clock buffer amplifier” is installed. For independent buffer amplifiers for each output, the power supply regulator is also made independent, and the amplifier and the power supply are blocked, enabling clean & powerful driving. The power transformer is a 2-transformer configuration that uses a large toroidal transformer as the main, and a digital control section adopts a dedicated EI core transformer. By combining a plurality of capacitors in the smoothing circuit and using a Schottky barrier diode, it quickly responds to high-speed digital processing and contributes to accurate clock signal generation.
Supplies clock to up to 8 devices
Supplies clocks to up to 8 devices including 4 dedicated terminals for 10 MHz sine wave clock. Output ON / OFF can be switched for each pin. Two outputs of A and B, four outputs are clocks of 1, 2, 4 times up to 512 times (22.5792 MHz / 24.576 MHz) of 100 kHz, 10 MHz (rectangular wave) and basic frequency series (44.1 kHz / 48 kHz) Signals can be output, and the output frequency can be set individually for each terminal.
External 10 MHz / 1 pps input
You can also connect a GPS receiver etc. to the external input terminal and input the reference signal of 10 MHz or 1 pps from the outside. The built-in rubidium unit is synchronized with the clock with higher center frequency accuracy received from the satellite, and ruby oscillation with higher stability than the crystal oscillator built in the external GPS receiver can be performed for the audio equipment side Accuracy We can make the best use of the advantages of GPS system.
ESOTERIC original gilding BNC terminal equipment
Adopted ESOTERIC original BNC terminal of brass sharpening to realize reliable contact. We also respond to the installation of high-end cables with a margin, keeping transmission loss to the utmost limit.
Preheat function of built-in rubidium unit
You can select the mode in which the system is completely shut down when the power button is turned off and the recommended preheat mode in which only the energization of the built-in rubidium unit is continued. By warming up rubidium at all times, it is possible to shorten the waiting time from power-on to its original performance.
The rubidium unit is susceptible to external vibration because of its high accuracy and it is delicate. Therefore, special consideration is given to the chassis construction, and vibration control is thoroughly carried out. The bottom chassis that fixes each component adopts a slit structure, minimizing mutual interference of each component. In addition, the heavy-weight thick aluminum panel enclosure with high rigidity, ESOTERIC’s unique pinpoint foot (Japanese Patent No. 4075477) minimizes the influence of external vibration.
Adopted organic EL display
Boasting a smooth and beautiful display suitable for cutting edge digital equipment.