See my system listing for details as well as various threads about these units I've posted on the 'Gon. About 3 months ago, I stumbled on Cybershaft Japan as an option via listings on various sites for high-quality 10Mhz master clocks. It seems they make OCXO, Rudidium-only and OCXO+Rb clock units (single port each standard) for high-end audio, video and studio purposes at an extremely aggressive price point. They are rated for 100-120V and 50-60Hz use which makes them perfect for US or Japanese usage. The Rb-only unit has a single FIFTY (50)-ohm BNC clock output; they supply all their test and calibration results with each unit plus a 1 year unconditional warranty. They have OCXO and dual (RB & OCXO) units as well. You may read more here (use Google Chrome and let it translate the page).
www.cybershaft.jp
and
http://www.cybershaft.jp/a-products/entry27.html
I have the Cybershaft Rb+OCXO 'dual master clock' offering up and running for about 2 months and I am extremely impressed by the build quality of the unit and the customer service provided by Hasegawa-san. He goes to great lengths to ensure all questions are answered and provides unit-specific test data for ALL testing of the unit including Allen Deviation, reference measurement devices used, etc....It's the most specific and open backing data of what a unit truly does after it is built I have ever seen. The price point of the unit is a fraction of the other offerings in the space (that provide 10 Mhz atomic-precision master clocking) and frankly when I saw the unit, it's quality, appearance and sheer weight coupled with the exceptional customer service, I don't feel that I am missing out on a single thing compared to the offerings from Stanford Research, Isochrome/Antelope, Esoteric or others. I currently have this connected as follows;
Cybershaft Rb-output=>10Mhz=>Esoteric D02 (WRD CLK IN, 10Mhz)=>Esoteric P02 (MCLK frequency from the D02)
Put another way, the Cybershaft clock is providing an atomic-precision baseline for the clocking circuit of the D02
All the specs and other technical aspects aside, there was an immediate improvement in the natural/liquid nature of the sound when I enabled the 10Mhz input signal from the Cybershaft to drive the WRD CLK Input of the D02 over the D02 alone. All was extremely good before but I find a touch more precision in image size and placement (of instruments and voices) and an even more musical presentation overall of the system as a whole.
www.cybershaft.jp
and
http://www.cybershaft.jp/a-products/entry27.html
I have the Cybershaft Rb+OCXO 'dual master clock' offering up and running for about 2 months and I am extremely impressed by the build quality of the unit and the customer service provided by Hasegawa-san. He goes to great lengths to ensure all questions are answered and provides unit-specific test data for ALL testing of the unit including Allen Deviation, reference measurement devices used, etc....It's the most specific and open backing data of what a unit truly does after it is built I have ever seen. The price point of the unit is a fraction of the other offerings in the space (that provide 10 Mhz atomic-precision master clocking) and frankly when I saw the unit, it's quality, appearance and sheer weight coupled with the exceptional customer service, I don't feel that I am missing out on a single thing compared to the offerings from Stanford Research, Isochrome/Antelope, Esoteric or others. I currently have this connected as follows;
Cybershaft Rb-output=>10Mhz=>Esoteric D02 (WRD CLK IN, 10Mhz)=>Esoteric P02 (MCLK frequency from the D02)
Put another way, the Cybershaft clock is providing an atomic-precision baseline for the clocking circuit of the D02
All the specs and other technical aspects aside, there was an immediate improvement in the natural/liquid nature of the sound when I enabled the 10Mhz input signal from the Cybershaft to drive the WRD CLK Input of the D02 over the D02 alone. All was extremely good before but I find a touch more precision in image size and placement (of instruments and voices) and an even more musical presentation overall of the system as a whole.