Palmer BRIDGE 4A+ 4-Channel 19" DI Box & Line Isolation Box

Product #121511 | SKU PBRIDGE4APLUS | Palmer
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Our Price $1,179 AUD
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Features

  • Connecting devices with unbalanced or balanced outputs
  • Eliminates ground loop hum
  • Combo inputs
  • 2 balanced XLR outputs per channel
  • Ground-lift switch for each output
  • Solid 19" housing, 1U

Description

The **Palmer BRIDGE 4A+ 4-Channel 19" DI Box & Line Isolation Box ** is a multifunctional device: each of the four channels can be used independently as an active DI box, a line isolation box, or a booster. The input combo socket accepts unbalanced and balanced signals. The outputs are designed as two transformer-balanced XLR sockets per channel (one on the front and one on the rear).

The galvanic isolation via transformer eliminates hum loops, and the ground lift switch can also be used to eliminate noise and interference that occurs with already balanced input signals. The Palmer BRIDGE 4A+ reliably eliminates any hum - and when connecting unbalanced equipment, the signal is also balanced.

If necessary, the signal level can be raised in three stages by 6dB, 12dB or 18dB. The audio over Cat output allows the signals of all 4 channels to be routed via a single Cat cable. This saves material, space, and time.

The BRIDGE 4A+ line isolation box is a universal problem solver for eliminating ground loops. Whether it's at home, at lectures, in the rehearsal room, on stage, in clubs, or at large events - the Palmer BRIDGE 4A+ ensures a clean sound without interference anywhere.

Specifications

General
Type Active
Transformer Isolated Yes
Channels 4
Inputs 4
Input type Balanced / Unbalanced
Input connectors 6.3 mm jack, XLR
Number of outputs 4 (+ 4 parallel XLR outs + AoC)
THRU outputs/channel 0
Output type Balanced
Output connectors RJ45, XLR
Output attenuation (PAD) 0 dB / 20 dB
Cabinet material Sheet steel
Width 482 mm
Depth 90 mm
Height 44 mm
Height 1 U
Weight 2.1 kg
Ground lift switch Yes
Operating voltage 9 V - 18 V
Power consumption 2 W
Additional Features 6/12/18 dB gain, AoC output with ground lift, power LED
Ambient temperature during operation -20 - 70 °C
Relative Humidity < 80% (non-condensing)
Accessories (included) External power supply PW9V
Audio
Max. input level (< 1% THD, 20 Hz) +10 dBu
Max. input level (< 1% THD, 1 kHz) +16 dBu
Max. output level (<1% THD, 20 Hz - 20kHz) +7 dBu
Frequency response (±0,2 dB, relative 1 kHz) 20 Hz - 20 kHz
Input impedance (1 kHz) 20 kOhm
Output impedance (1 kHz) 84 Ohm(s)
THD + N (30 Hz, +4 dBu, unity, unweighted) < 0.0023%
THD + N (1 kHz, +4 dBu, unity, unweighted) < 0.0009%
IMD (SMPTE) (60 Hz / 7 kHz, 4:1, +4 dBu) < 0.0018%
SNR (+4 dBu, 22 kHz BW, unity, unweighted) 105 dB
Transformer ratio 10 : 1

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Details

  • Product: Palmer BRIDGE 4A+ 4-Channel 19" DI Box & Line Isolation Box
  • Manufacturer: Palmer
  • Model: PBRIDGE4APLUS
  • SKU: PBRIDGE4APLUS
  • RM Product #: 121511
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