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Sonifex RB-DMA2

Dual Digital Microphone Amplifier
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Great for talkback systems! -This 2 way amp for converting mic levels to digital outputs.

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RB-DMA2 $789.00
RB-DMA2 (115Volt version) $789.00
  • 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. Individual analogue balanced line level outputs are also produced for use, for example, to feed talkback systems. The unit can either be used as two independent microphone amplifiers, or one mic input can be copied to both channels of the digital 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 enabling the use of dynamic and powered microphones and each has a LED level indicator. For each channel there are independent switches to control a high pass filter (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 TTL Word Clock sync inputs and has the same sync modes, bit depth selection, channel status bit adjustment, front panel LED synchronisation and calibration routine as the RB-ADDA. Please refer to that product for further information.

    Please select the variant from the product options.

    Audio Specification
    Maximum Input Level -25dBu
    Minimum Input Level -62dBu to give FSD
    Input Impedance 2kohm nominal
    Gain Range 37dB
    Signal to Noise 130dB EIN
    Dynamic Range >110dB
    Distortion and Noise <0.01% THD + N absolute @ 1kHz
    Low Frequency Roll-off 125Hz @ 6dB/octave
    Phantom Power 48V
    Microphone Inputs 2 x XLR 3 pin female (balanced)
    Sync Inputs 1 x AES/EBU XLR 3 pin female (balanced) 1 x S/PDIF RCA phono 1 x TTL BNC female
    Digital Outputs 1 x AES/EBU XLR 3 pin male (balanced) 1 x S/PDIF RCA phono
    Analogue Outputs 2 x XLR 3 pin male (balanced)
    Mains Input Filtered IEC, switchable 110-120V, or 220-240V, fused, 10W max
    LED Level Green indicates FSD -18dB Orange indicates FSD -12dB Red indicates FSD -6dB
    Physical Specification
    Weight Nett: 1.6kg Gross: 2.2kg
    Dimensions Raw: 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U) Boxed: 53cm (W) x 20.5cm (D) x 6cm (H)
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