Product Overview
RB-ADDA Combined A/D and D/A Converter - (24 bit, 96kHz Capable - 1U)
The RB-ADDA A/D and D/A converter is a 1U rack-mount which produces an AES/EBU or S/PDIF level digital audio output from a balanced XLR or unbalanced phono stereo audio input. It also produces a stereo balanced XLR or unbalanced phono output from an incoming AES/EBU or S/PDIF digital input signal. The unit operates in four modes:
Master Mode: In this mode the unit receives an analogue audio signal, which is digitised and formatted for digital serial transmission (IEC958). The necessary clock signals are generated internally from an on board master clock at a selectable rate (32kHz, 44.1kHz, 48kHz or 96kHz).
Slave Mode: In this mode the unit automatically detects the presence of a digital audio sync signal, if present at the digital input, and synchronises the digital output to it. If no sync is present, no output will be generated.
Auto Mode: Here the unit synchronises to the digital audio sync signal if present at the digital input and uses the internal master clock only if no sync input signal is detected. In this case, the internal master clock is used at the selected sample rate.
Auto Lock Mode: This operates like the auto mode except that if no sync input signal is detected, it will use the internal master clock to sync to the sample rate which was last clocked to.
When operating in sync modes, the front panel power LED flashes whenever the unit is not synchronised to the incoming digital signal.
The analogue inputs have left and right level controls using pre-set potentiometers and DIP switches allowing a signal range from +9dBu to +27dBu. The RCA phono inputs have a further 10dB gain incorporated to give a total gain range of -1dBu to +17dBu for full-scale digits.
The analogue outputs have an output level control, allowing full-scale settings selectable from +12dBu, +18dBu or +24dBu. There are factory-set internal level controls for the analogue outputs allowing gain adjustment of ±1dB.
There are buttons to select either the AES/EBU or S/PDIF input or output for the D/A and A/D sections respectively. The output bit depth can be selected from 16, 20 or 24 bits. Inputs of a different bit depth to the output are dithered using a noise filter.
For the digital output, there is a switch available to define the content of the channel status bits embedded within the digital audio stream. The status bits can be forced to either Professional or Consumer Mode.
For more information on the Sonifex RB-ADDA Combined A/D and D/A Converter, click here!
Warranty Information
- (i) notification of any defect is given to the Company immediately upon its becoming apparent to the Purchaser;
- (ii) the Goods have only been operated under normal operating conditions and have only been subject to normal use (and in particular the Goods must have been correctly connected and must not have been subject to high voltage or to ionising radiation and must not have been used contrary to the Company's technical recommendations);
- (iii) the Goods are returned to the Company's premises at the Purchaser's expense;
- (iv) any Goods or parts of Goods replaced shall become the property of the Company;
- (v) no work whatsoever (other than normal and proper maintenance) has been carried out to the Goods or any part of the Goods without the Company's prior written consent;
- (vi) the defect has not arisen from a design made, furnished or specified by the Purchaser;
- (vii) the Goods have been assembled or incorporated into other goods only in accordance with any instructions issued by the Company;
- (viii) the defect has not arisen from a design modified by the Purchaser;
- (ix) the defect has not arisen from an item manufactured by a person other than the Company. In respect of any item manufactured by a person other than the Company, the Purchaser shall only be entitled to the benefit of any warranty or guarantee provided by such manufacturer to the Company.
