BRIDGE 4P 19" DI box, 4 channels, passive

Item No.: PBRIDGE4P

Series: BRIDGE

Balancing and impedance matching for guitar, bass, keyboards & synthesizers

Eliminates ground loop hum thanks to galvanic transformer isolation

4 independent DI boxes in a solid 19" housing (1U)

Extremely fail-safe, no power supply required

THRU-output for passing the input signal

Audio over Cat output (AES72 Type 5e) for forwarding all signals via a single Cat cable

Pure and unaltered low-noise audio

Handles even high-level inputs without distortion thanks to switchable -30dB pad

Ground-lift switch for each output

Engineered in Germany

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Balancing and impedance matching for guitar, bass, keyboards & synthesizers

Eliminates ground loop hum thanks to galvanic transformer isolation

4 independent DI boxes in a solid 19" housing (1U)

Extremely fail-safe, no power supply required

THRU-output for passing the input signal

Audio over Cat output (AES72 Type 5e) for forwarding all signals via a single Cat cable

Pure and unaltered low-noise audio

Handles even high-level inputs without distortion thanks to switchable -30dB pad

Ground-lift switch for each output

Engineered in Germany

Description

Are you aiming to capture the pure signal from a guitar, bass, or keyboard without any noise and tonal loss, even over long cable runs? In that case, you need a DI box - and a high-quality one at that - to ensure your sound won't be compromised.

The BRIDGE 4P from Palmer is a 4-channel passive DI box in 19" rack format with high-quality transformers that handle even high levels without distorting or losing the pure sound of your instrument. Each channel is equipped with a 1/4" jack input, a THRU output (for forwarding the input signals to an amplifier, for example), and two transformer-balanced XLR outputs - one at the front and one at the rear.

With a transformation ratio of 10:1, the transformers ensure optimum impedance and level matching for connecting instrument signals from guitar, bass, keyboard or synthesizer to a balanced microphone input. At the same time galvanic isolation prevents ground loop hum, so that the signal remains pure, clear and ultra-low noise, without any interference.

Thanks to a switchable 30dB pre-attenuation, the BRIDGE 4P can be fed with extremely high input levels in addition to line signals, which means it can even be looped in between the amplifier output and speakers, for example. The Audio-Over-Cat output enables the signals of all 4 channels to be routed via a single Cat (Cat5e or higher) cable. This saves material, space and time. Due to its passive design, the BRIDGE 4P requires no power supply, which makes it extremely fail-safe.

The BRIDGE 4P is the ideal solution for audio technicians, semi-professional and professional musicians as well as recording studios that value reliable and durable products.

Specifications

General data

Product type

DI boxes

Type

passive

Transformer isolated

yes

Channels

Inputs

input type

unbalanced

Input connectors

6.3 mm jack

Input pad

0 dB / 30 dB

Number of outputs

4 (+ 4 parallel XLR outs + AoC)

THRU outputs/channel

Output type

balanced

Output connectors

RJ45, XLR

Output impedance

30 Ohm(s)

Frequency response

20 Hz - 20 kHz

Cabinet material

sheet steel

Width

482 mm

Width

19 "

Depth

90 mm

Height

44 mm

Height

1 U

Weight

1.92 kg

Ground lift switch

yes

Additional Features

AoC output with ground lift

Ambient temperature during operation

-20 - 70 °C

Relative Humidity

< 80% (non-condensing)

Audio

Max. input level (< 1% THD, 20 Hz)

+ 21 dBu

Max. input level (< 1% THD, 1 kHz)

+25 dBu

Frequency response (±0,1 dB, relative 1 kHz)

20 Hz - 20 kHz

Input impedance (1 kHz)

27 kOhm

Output impedance (1 kHz)

30 Ohm(s)

THD (30 Hz, +4 dBu, unity, unweighted)

< 0.029%

THD (1 kHz, +4 dBu, unity, unweighted)

< 0.0006%

IMD (SMPTE) (60 Hz / 7 kHz, 4:1, +4 dBu)

< 0.0012%

Transformer ratio

1 : 10

Name	Category	Type	File size
User manual	Manual	pdf	3 MB
Information sheet	Data Sheet	pdf	3 MB
Palmer Catalogue	Catalog	pdf	31 MB
Product images	Image files	zip	-