Annonces RB-DMA2
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- Fabricant : Sonifex
- Modèle : RB-DMA2
- Catégorie : Préamplis à transistors
- Fiche créée le : 27/03/2019
Desciption:
The RB-DMA2 consists of two independent low-noise microphone preamplifiers for converting microphone level signals to digital AES/EBU, or S/PDIF, and analogue line level outputs.
The RB-DMA2 can be used as a front end for digital mixing desks or routers, which do not have microphone inputs.
The analogue outputs can be used for routing to talkback systems.
The microphone inputs are XLR-3 type and are electronically balanced.
The input gain for each input can be adjusted individually by coarse and fine gain controls on the front panel and each input has a level indicator.
Additionally the fine gain control knob can be disabled by internal jumpers.
A switch on the rear panel allows input 1 to be routed to both left and right digital outputs, or as input 1 to left output and input 2 to right output respectively.
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.
It also has AES/EBU, S/PDIF and Word Clock sync inputs.
Technical Specifications:
| Connections: | |
| Analogue Mic Inputs | 2 x XLR 3 pin (balanced) |
| Analogue Line Outputs | 2 x XLR 3 pin (balanced) |
| Digital Sync Inputs | 1 x AES/EBU XLR 3 pin female 1 x S/PDIF RCA phono 1 x TTL BNC female (sync) 50 ohm impedance |
| Digital Outputs | 1 x AES/EBU XLR 3 pin plug 1 x S/PDIF RCA phono socket |
| Mains Input | Filtered IEC, 110-120V, or 220-240V switchable, fused 10W max |
| Fuse Rating | Anti-surge fuse 100mA 20 x 5mm (230VAC) Anti-surge fuse 250mA 20 x 5mm (115VAC) |
| Audio Specification: | |
| Min/Max Input Level | -63dBu / 5dBu to give FSD |
| Input Impedance | 2kΩ nominal balanced |
| Gain Range | 68dB |
| Signal to Noise | 128dB EIN |
| Dynamic Range | >110dB |
| Distortion and Noise | < 0.01% THD + N absolute @ 1kHz |
| Phantom Power | +48V |
| Low Frequency Roll-off | 125Hz @ 6dB/octave |
| Analogue Output Level | +18dBu Ref. FSD |
| Operational Controls & Indicators: | |
| Bit Depth | 16, 20 or 24 bits via DIP switch |
| Digital Output Select | AES/EBU or S/PDIF, via push-switch |
| Sample Frequencies | 32kHz – 96kHz, via rotary switch |
| Sync Modes | Master, Slave, Auto, Auto-Lock via rotary switch |
| Digital Input Select | AES/EBU or S/PDIF, via push-switch |
| Channel Status Bits | Set to consumer or professional mode via DIP switch |
| Output Routing | Set dual mono output via DIP switch |
| Led Level | Green ind. -18dBFS, Orange ind. -12dBFS, Red ind. -6dBFS |
| Equipment Type: | |
| RB-DMA2 | Dual digital microphone amplifier |
| Physical Specifications: | |
| Dimensions (Raw) | 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U) 19” (W) x 4.3” (D) x 1.7” (H) (1U) |
| Dimensions (Boxed) | 53cm (W) x 20.5cm (D) x 6cm (H) 21” (W) x 8” (D) x 2.4” (H) |
| Weight | Nett: 1.6kg Gross: 2.2kg Nett: 3.5lbs Gross: 4.8lbs |
Manuels et autres fichiers
Autres catégories dans Préamplis microphones
Autres dénominations : rbdma2, rb dma 2
