Sonifex have released two more digital converters in their Redbox range of audio interfaces. The RB-DAC1 Digital to Analogue Converter and the RB-DMA2 Dual Digital Microphone Amplifier will be on display at booth number L2466 at NAB2002.
Sonifex’s Managing Director, Marcus Brooke, commented : “These two new digital products extend our line of digital audio interfaces and provide ideal and cost-effective means of connecting to digital mixing consoles and digital audio routers. With professional connectors, 24/96 processing and simple uncluttered controls, these Redboxes are ideal for fit-and-forget applications where reliability and high performance are pre-requisites”.
The RB-DAC1 D/A Converter is a 1U rack-mount which produces a stereo balanced XLR or unbalanced phono output from an incoming AES/EBU or S/PDIF digital input signal. There is also a headphone output with volume control for monitoring purposes. The analogue outputs have an output control, allowing full-scale settings selectable from +12dBu, +18dBu or +24dBu. There is a button to select either the AES/EBU or S/PDIF input for the D/A converter, which is located on the rear panel. De-emphasis on the output can be enabled via dipswitch.
The RB-DMA2 consists of two independent low-noise microphone pre-amplifiers for converting microphone level signals to a digital AES/EBU or S/PDIF output. The microphone inputs are XLR-3 type and are electronically balanced. The input gain for each input can be adjusted individually by a volume control on the front panel and each has a LED level indicator. For each channel there are independent switches to control a high pass filter with low frequency roll-off at 125Hz, and to provide phantom power at +48V to the connected microphones.
The RB-DMA2 has AES/EBU, S/PDIF and Word Clock sync inputs and has multiple synchronisation modes depending on whether the unit is synchronising to internal or external clocks.
