Product Description
The problem is, that as soon as you have more than one box (and one master clock) in the system – for instance, if you use a transport and DAC – then the errors can increase exponentially. The easiest solution is to synchronize the two clocks, designating one as the master and slaving the other to it. That’s exactly the solution provided by the Clock-Sync cards available for the CH Precision D1, C1 and I1, while the sophisticated software control incorporated into each of the units allows owners to designate master and slave according to circumstances and system topology. But what’s better than syncing two or more units to a single master clock? Syncing them all to a single, superior, external reference point – a reference like the T1 Time Reference external clock.
The T1 generates a super accurate, low-jitter signal that delivers measurably lower phase noise and more accurate transfer and conversion of digital signals. It is built around a high-frequency 10MHz oven controlled oscillator (OCXO), its core temperature and output further stabilized by encapsulation in a mechanically isolated billet aluminum block. Why not just use one of the popular and readily available Rubidium clock modules like everybody else? Because those Rubidium modules have a limited life span – generally between six and eight years – and they contain radioactive material. At CH Precision we expect our products to have a much longer working life than that, so incorporating components with a finite life is contrary to all our beliefs – especially if those components then present a serious disposal issue.
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Technical Specifications
Nominal frequency
10MHz, +/- 20ppb, internal mode
10MHz, +/- 1ppb maximum, GPS option locked for 1 hour
Phase noise performances
< -105dBc/Hz @ 1Hz
< -125dBc/Hz @ 10Hz
< -145dBc/Hz @ 100Hz
< -155dBc/Hz @ 1kHz
< -165dBc/Hz @ 10kHz and above
Outputs level
500mV or 1V, peak to peak, loaded with 75Ω
Sine or Square wave
Six 75Ω BNC outputs
External Reference Input level
5V TTL
50Ω BNC input
Accepted Reference input frequencies
1 PPS, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz,
192kHz, 100kHz
Reference input frequency deviation maximum
+/- 0.1ppm
Dimensions/Weight
440 x 440 x 133mm (W x D x H), 20kg
CH-Control App
Meet the CH-Control App – a control application that allows users direct access to every aspect of their CH system’s set up and use via any Android portable device. The software control systems used to set and monitor the operational parameters of each and every CH component offer the perfect opportunity for remote operation via a portable App.
To use the CH-Control App, all you will need is an Android device and to connect your CH components to an Ethernet network. That can be done either through the Ethernet control board fitted as standard to all CH units, or through the network streaming board that can be installed in C1.2, C1.2 Mono or I1 units. We would always recommend using a dedicated tablet and network for your music streaming and system control requirements.
Once your CH system is all hooked up, the App gives you touch screen access to every setting on every CH component, from your listening seat, a huge benefit when it comes to whole system set up or optimization for individual recordings. Either way, the CH-Control App allows you to make easier and more accurate judgements: Total control, quite literally at your fingertips.
The features of every CH product are accessible through the CH-Control App:
- Built-in UPnP controller to stream dematerialized music, create playlists, etc.
- Set volume level, select sources, reverse phase, mute, etc.
- Access to all the advanced set-up parameters in every CH product.
- Works on a standard Ethernet network.
- The CH-Control App is freely available on Google Play.
