Proel DB 1A
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DB 1A Order code
DI Box activ, 1 canal DB1A
This single-channel, top-of-the-range active DI BOX has been designed to fit into the most demanding setups and applications with an outstanding performance.

DB1A includes an MU-METAL core transformer able to reduce phase and harmonic distortion to a minimum, with noticeable improvement of the linear phase even on very long cables.

The audio integrity is guaranteed by low-noise, low-consumption IC for balancing the signal, able to handle very low-impedance loads. The input section features JACK and XLR connectors with link possibility and a PAD of up to 30 dB that permits very high-level signal inputs to be used.

Type: 1 channel active DI
Rack units: 1/2 rack unit removing the two molded sides and attaching two units, with the supplied brackets, you can mount two by two DI boxes into a standard 19" rack.
Power supply: Phantom Power: +24 volts DC to +48 volts DC External AC/DC adaptor: +9 volts DC with link Standalone/Standby: 9 volt PP3 type battery.
Current drain: <8 mA
Inputs: Two Parallel 1/4" jack connectors and one parallel XLR connector (unbalanced).
Input impedance: 1M Ohm (pad at 0 dB) 47 kOhm (pad at -10/-20 dB) 44k Ohm (pad at -30 dB)
Input levels: +5 dBu (pad at 0 dB) +15 dBu (pad at -10 dB) +25 dBu (pad at -20 dB) +35 dBu (pad at -30 dB)
Outputs: XLR male: Pin 2 Hot / Pin 3 Cold / Pin1 Ground
Output levels: Into 600 Ohms or greater +3 dBu (for 0.1% THD at 50 Hz) +5 dBu (for 0.1% THD at 1k Hz)
Connectors: XLR male: Pin 2 Hot / Pin 3 Cold / Pin1 Ground
Channels: 1
Frequency response: 10 Hz to 100 kHz, +0dB/-1 dB
Distortion (THD): < 0.007 %
S/N Ratio: < -105 dBu unweighted
Controls: On/off, Pad -10, Pad -20, Gnd Lift, Ø inv.
Width: 215 mm
Height: 50 mm
Depth: 125 mm
Weight: 1 kg
Notes: CMR > 60 dB Phase distortion +14° at 20 Hz, -6° at 20k Hz
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