Esoteric''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s current mid-price high-precision independent clock in production uses ultra-high-precision OCXO clock modules, an exclusively designed broadband clock signal amplification circuit, and audiophile-level large-capacity power supply. There are 8 gold-plated BNC output terminals, 4 of which output clock signals and 4 output 10MHz signals. Dachang licensed products have a 2-year warranty.
Although the G-02X and the previous generation G-02 are equipped with OCXO oscillators, the OCXO that the original manufacturer advertised as G-02X has undergone a new manufacturing process and can have a higher degree of stability during operation. In addition, G-02X inherits more Grandioso’s flagship technologies, including "Wide Range Clock Buffer Amplifiers"(High bandwidth clock buffer amplifier circuit), "Adaptive Zero Ground circuits"(Zero potential ground loop)These two innovative technologies are applied. Among them, the high-bandwidth clock buffer amplifier circuit is individually separated for each output terminal of the G-02X, and is equipped with a high-speed transistor with excellent performance at high frequencies, so that the precise clock signal can eventually achieve better sound quality performance. The zero-potential ground loop is located between the internal OCXO and the buffer amplifier circuit, which can maintain the reference potential of the ground output at 0V, which can effectively prevent noise problems caused by ground voltage changes; just enter the G-02X menu When you see the "A. GND" item, if it is activated, a "LOCK" light in the upper left corner of the front panel will light up green, which means that there has been a zero-potential ground loop, and the user can switch it by himself to compare the difference in hearing perception.
In addition, compared with the previous generation model, the clock output of G-02X has also been expanded to a total of eight groups, all of which use special gold-plated BNC terminals, which are very durable and load-bearing; the eight groups of output are divided into two parts, with four groups on the right. "Clock Out" provides 44.1kHz to 24.576MHz square wave output, and the four groups on the left are 10MHz sine wave clock output. Each terminal can be opened and closed independently through the menu, and the output frequency can be set independently. If it is connected to a USB DAC and the source is a laptop or a digital stream, the file format to be played may contain different sampling rates. At this time, if a 10MHz clock is used to output to the DAC, there will be enough bandwidth for the DAC Perform reference clock calculations for music files with different sampling rates. Therefore, even if the G-02X is a household device, it can actually be regarded as a "Master Clock Generator" used in a recording studio. However, G-02X still provides a set of terminals that support 10MHz external clock input. If there is a higher-connected clock, you can use this set of inputs and then use the G-02X eight sets of terminals to transmit to other sources at the back end. Or recording equipment.
technical parameter
Clock output signal | Clock output frequency | 44.1 kHz setting | 44.1, 88.2, 176.4, 352.8, 705.6 kHz |
1.4112, 2.8224, 5.6448, 11.2896, 22.5792 MHz |
48 kHz setting | 48, 96, 192, 384, 768 kHz |
1.536, 3.072, 6.144, 12.288, 24.576 MHz |
Both settings | 100 kHz, 10 MHz |
interface | BNC x 4 |
Output level | Rectangular wave: TTL level / 75Ω |
10MHz output | 10 MHz |
interface | BNC x 4 |
Output level | Sine wave: 0.5± 0.1 Vrms / 50Ω |
Standard frequency input (EXT IN) | Input frequency | 10MHz (within±10ppm) |
interface | BNC x 1 |
Input level | Sine wave: 0.5-1.0 Vrms/50Ω Square wave: TTL level/10 kΩ |
OCXO (Crystal Oscillator) | Frequency stabilization time after power-on | 10 minutes |
Frequency stability | Within±0.015 ppm (0°C to 70°C) |
Frequency accuracy | Within±0.01 ppm Typ (when shipped new)(ppm = 10 -6) |
General | power supply | AC 230V, 50Hz AC 120V, 60Hz AC 220V, 60Hz |
size (W x H x D) (Including protruding parts) | 445 x 107 x 359 mm |
weight | 11.3kg |
Appendix | Power cord x 1, Felt pads x 3, Owner&39;s manual x 1, Warranty card x 1 |