IanCanada
SC-Pure Extremely-low Phase Noise Audio Clock
SC-Pure Extremely-low Phase Noise Audio Clock
5.0 / 5.0
(31) 31 total reviews
Couldn't load pickup availability
SC-Pure is a top-level audiophile clock made from the best selected SC-CUT crystals. To achieve the highest possible low phase noise performance, an advanced oscillator architecture has been developed. The sound quality can be significantly enhanced by replacing existing clocks with SC-Pure in DACs, DDCs, or network streamers.
- True SC-CUT OCXO crystal.
- A specially designed pure sine topology has been introduced to convert the ultra-high-purity sine signal into a square wave directly from the SC-CUT crystal resonator, bypassing any active components. As a result, the best possible low-phase noise performance can be achieved.
- Extremely low close-in phase noise and phase noise floor make SC-Pure capable of challenging any high-end clocks in the world.
- Femtosecond RMS phase jitter.
- In standard compact size DIP14 package with 3.3V power supply voltage and LVCMOS output. Plug and play. Easy to install for all applications.
- Featuring an OE standby function to eliminate interference from unselected frequencies, the SC-CUT crystal can still operate in low-power mode without disrupting the break-in process.
- Operating the standard 83ºC OCXO crystal at room temperature, the frequency will be approximately 20ppm lower than the rated frequency, which is the natural characteristic of the SC-CUT crystals.
- Dual shield cans are located on both the top and bottom sides of the PCB for the best possible EMI noise suppression.
- Working voltage 3.3V. Tolerance to 5V.
- A 3.3V ultra-capacitor or a LiFePO4 battery power supply can be used directly to optimize the performance. Also has a LED power indicator.
- Size L21.5 W15 H11 (mm)
- One-year limited warranty and lifetime service.
Newly released in 2026, #80E SC-Pure 24.000MHz could be the best phase noise performance clock so far that can be sourced for ultra-high performance USB output or USB re-clock applications.
Note: Please be very careful about the orientation when you install the SC-Pure clocks. Reversed orientation can damage the SC-Pure and can not be covered by the warranty.
Share
Extreme sonic upgrade when replacing Accusilicon AS318 clock the with SC-Pureput into Eversolo T8 streamer!
I installed the SC-Pure clocks in place of the original clocks that came with the Digi pro hat in a streamer I am building with all Ian’s components. I have a very decent streamer on hand for comparison and my system is extremely revealing and very finely tuned.
I found to get the absolute best sound from the clocks was to power them from the uC conditioner with some very good super capacitors and very high purity solid and stranded silver conductors.
The clocks took several months to perform their best and they will reward when implemented properly they certainly do give you the being there effect without the harshness….money well spent.
It works well with a Pontus ver 2 dac
Very good support from Ian.
The clocks arrived within 2 weeks at the Netherlands. They bring a huge improvement on all aspects of the sound compared to musetec and other TCXOs. Clock quality is indeed comparable to a very good oven clock.