Contents and categories

Display all

Contents and categories

Series

Search suggestions

Display all results

BRIDGE 4A+ 19" DI box / line isolation box, 4 channels, active

Item No.: PBRIDGE4APLUS
Series: BRIDGE
For connecting devices with unbalanced or balanced outputs to PA systems
Reliably eliminates ground loop hum thanks to galvanic transformer isolation
Combo inputs, can be used with XLR connectors or 1/4" jacks
2 balanced XLR outputs per channel
Audio over Cat output (AES72 Type 5e) for forwarding all signals via a single Cat cable
Ground-lift switch for each output
Solid 19" housing, 1U
Power supply: 9-18V DC, center negative
Engineered in Germany
 

Contents and categories

Display all

Contents and categories

Series

Search suggestions

Display all results
For connecting devices with unbalanced or balanced outputs to PA systems
Reliably eliminates ground loop hum thanks to galvanic transformer isolation
Combo inputs, can be used with XLR connectors or 1/4" jacks
2 balanced XLR outputs per channel
Audio over Cat output (AES72 Type 5e) for forwarding all signals via a single Cat cable
Ground-lift switch for each output
Solid 19" housing, 1U
Power supply: 9-18V DC, center negative
Engineered in Germany
Description

The BRIDGE 4A+ 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 data
Product type
DI boxes, Line isolators
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
Width
19 "
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
Downloads & links
Name
Category
Type
File size
User manual Manual pdf 2 MB
Information sheet Data Sheet pdf 3 MB
Palmer Catalogue Catalog pdf 31 MB
Product images Image files zip -
User manual

Category: Manual

Type: pdf

File size: 2 MB

Information sheet

Category: Data Sheet

Type: pdf

File size: 3 MB

Palmer Catalogue

Category: Catalog

Type: pdf

File size: 31 MB

Product images

Category: Image files

Type: zip

File size: -

(0) Download files
Related Products
Buy
No suitable online shop found? Then search on Google Shopping Or find a local dealer: