DDA-212 Series 2 Digital Audio Distribution Amplifiers are designed to regenerate, isolate and distribute digital audio data formatted in accordance with specifications AES3-1992 and IEC 958. This is commonly called AES/EBU formatting or AES3. DDA-212 Series 2 units have two inputs and 12 outputs, with the assignment of inputs and outputs configurable from a front panel switch. The unit may be operated as a Dual 1X6 or as a 2-Input 1X12, depending on the Input Select switch setting. The selected input feeds
AES audio to either six or all 12 separate outputs.
A front panel switch selects either re-clocking or non-reclocking of the input signal. In most cases, re-clocking is preferred, as this feature improves the integrity of weak or distorted input signals. Re-clocking may be switched off to allow distribution of AES sync signals, Dolby E encoded AES signals, or other signals that should not be re-clocked. DDA-212 Series 2 units work with AES signals that contain sample rates from 27 through 192kHz and 16-bit through 24-bit density, thus permitting very high resolution signals to be distributed. The front panel displays full status of the input signal, including Sample rate, Word Length, Digital Errors and Pro or Consumer Mode.
DDA-212 Series 2 units contain a unique automatic equalization function that can adjust for extremely long input lines. Equalization works independently for each input. A Front Panel Lock feature protects all your settings.
The Model DDA-212XLR uses XLR connectors and operates from and drives a 110-ohm balanced shielded twisted pair distribution system per AES3-1992.
Input Loop-through connections for each of the two inputs are provided to permit multiple units to be stacked, or to insert the DDA-212 into your digital workflow. Switchable line termination is provided. Standard practice dictates that the last AES input be terminated; therefore, if you are not using the loop-through feature, Input Termination should be switched ON.
Features;
Configurable for Dual 1X6 or 2-Input 1X12 operation
Accepts sample rates from 27 to 192kHz
Displays standard sample rates of 32, 44.1, 48, 88.2, 96, 176.4 and 192 kHz
Displays Word Length of 16, 18, 20 and 24 bit
Status and error LEDs show clock lock and data validity
Automatic input equalizers compensate for very long cable runs
Switchable re-clocking regenerates stable data before distribution
Loop thru transformer balanced and isolated inputs
Switchable input termination
Individual, transformer balanced and isolated 110-ohm XLR outputs
Two front-panel-selectable inputs
12 outputs
Front panel control locking system
Quiet, internal linear power supply (DDA-212XLR Input voltage is 115Vac. But it has a 230Vac version also, just add 230V at the end of the model number to order it).
Attractive and rugged 1RU package