Focusrite MH444 AD Card for MH443 TwinTrak Pro

In addition to the Twin Trak Pro/TrakMaster/Penta's analog outputs, you may add this high quality 24 bit, 128x over-sampled digital output. It can operate at sample frequencies of 44.1, 48, 88.2 or 96 kHz.

All of the following functions are available on the rear panel when this option is fitted:

S/PDIF Output
This 24 bit output is S/PDIF format on an RCA phono connector. If 16-bit resolution is required, the receiving device should dither the 24 bit signal to achieve 16 bit performance.

Sample Frequency (switch)
Two switches give a choice of four sample frequencies as marked on the rear panel. The left-hand switch selects between 44.1 kHz (switch in) and 48 kHz (switch out), and the right hand switch doubles the selected frequency, providing for 88.2 and 96 kHz sample frequencies.

Ext Word Clock Input
If an external wordclock source is fed to the BNC connector, the TwinTrak Pro will attempt to synchronise to it. When the unit is correctly locked to the external wordclock source the ADC LOCK LED will be lit.