BRIDGE 4A+
19" DI box / line isolation box, 4 channels, active
$599.99
Backordered – More on the Way!
Product information "BRIDGE 4A+"
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.
| Width: | 18.98 in |
|---|---|
| Transformer isolated: | yes |
| Output attenuation (PAD): | 0 dB / 20 dB |
| THRU outputs/channel: | 0 |
| Accessories (included): | external power supply PW9V |
| Weight: | 4.63 lbs |
| Output connectors: | RJ45, XLR |
| Additional Features: | power LED, AoC output with ground lift, 6/12/18 dB gain |
| Power consumption: | 2 W |
| Height: | 1 U |
| Ground lift switch: | yes |
| Channels: | 4 |
| Product type: | Line isolators, DI boxes |
| Relative Humidity: | < 80 % ( non-condensing ) |
| input type: | balanced/ unbalanced |
| Type: | active |
| Width: | 19 Inch |
| Number of outputs: | 4 (+ 4 parallel XLR outs + AoC) |
| Inputs: | 4 |
| Ambient temperature during operation: | -20 - 70 °C |
| Output type: | balanced |
| Input connectors: | XLR, 6.3 mm jack |
| Depth: | 3.54 in |
| Height: | 1.73 in |
| Cabinet material: | sheet steel |
| Operating voltage: | 9 V - 18 V |
| Max. input level (< 1% THD, 1 kHz): | +16 dBu |
|---|---|
| THD + N (1 kHz, +4 dBu, unity, unweighted): | < 0.0009% |
| SNR (+4 dBu, 22 kHz BW, unity, unweighted): | 105 dB |
| Transformer ratio: | 10 : 1 |
| THD + N (30 Hz, +4 dBu, unity, unweighted): | < 0.0023% |
| Frequency response (±0,2 dB, relative 1 kHz): | 20 Hz - 20 kHz |
| Input impedance (1 kHz): | 20 KOHM |
| Output impedance (1 kHz): | 84 Ω |
| Max. input level (< 1% THD, 20 Hz): | +10 dBu |
| Max. output level (<1% THD, 20 Hz - 20kHz): | +7 dBu |
| IMD (SMPTE) (60 Hz / 7 kHz, 4:1, +4 dBu): | < 0.0018% |
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accessories
For professional applications on stage, in the studio or in the rehearsal room, excellent quality is available with our 5 STAR SERIES. This cable is made in the EU and therefore meets the relevant requirements for professional use.Durability and reliability find their master in the hard road everyday life! We have therefore developed a cable that is not only flexible, but also very robust. We use a special soft-PVC compound for all cables of the 5 STAR SERIES, which is friction resistant and bendable. For excellent signal transmission, but is also more abrasion resistance. The cable comes with a cable tie and two transparent, loose heatshrinks for labeling.Engineered in Germany & Made in EU: This stands for precision & quality.
The P AOC L XLR F is a multicore adapter cable that facilitates the stable transmission of 4 separate analog and balanced audio signals or 8 digital AES3 signals through a network cable (not included). The female XLR plugs are numbered and color-coded for easy identification. The Ethercon connection is safeguarded against unlocking to prevent accidental cable disconnection.In addition to audio signals, the P AOC L XLR F enables the transmission of DMX, or MIDI control signals, along with 48-volt phantom power, via a single, standard Ethernet cable. This versatility allows it to be used flexibly across various applications, be it for live concerts, studio sessions, press conferences, or other productions.Featuring high-quality Neutrik components, a solid aluminum-steel housing, and robust mesh cables with a 50 cm splice, the P AOC L XLR F guarantees reliable signal transmission and durability in professional environments. Its simple, high-quality design also enhances the visual appeal of any setup.All these factors make the P AOC L XLR F a reliable and durable tool that provides an affordable and flexible alternative to conventional 4-channel multicores without compromising audio quality - as you have always come to expect from Palmer.
The P AOC L TRS M is a multicore adapter cable that facilitates the stable transmission of 4 separate analog and balanced audio signals through a network cable (not included). The 6.3 mm TRS jacks are numbered and color-coded for easy identification. The Ethercon connection is safeguarded against unlocking to prevent accidental cable disconnection.Audio is transmitted via a single, standard Ethernet cable, allowing the P AOC L TRS M to be used flexibly across various applications, be it for live concerts, studio sessions, press conferences, or other productions.Featuring high-quality Neutrik components, a solid aluminum-steel housing, and robust mesh cables with a 50 cm splice, the P AOC L TRS M guarantees reliable signal transmission and durability in professional environments. Its simple, high-quality design also enhances the visual appeal of any setup.All these factors make the P AOC L TRS M a reliable and durable tool that provides an affordable and flexible alternative to conventional 4-channel multicores without compromising audio quality - as you have always come to expect from Palmer.
The AOC B XLR F is a multicore box that facilitates the stable transmission of 4 separate analogue and balanced audio signals or 8 digital AES3 signals through a network cable (not included). To mitigate the risk of ground loops, the etherCON connection features a ground lift switch. In addition, a secondary etherCON THRU connection – linked in parallel – facilitates the transmission of signals to external devices. Both of the etherCON connections are safeguarded against unlocking to prevent accidental cable disconnection.In addition to audio signals, the AOC B XLR F enables the transmission of DMX, or MIDI control signals, along with 48-volt phantom power, via a single, standard Ethernet cable. This versatility allows it to be used flexibly across various applications, be it for live concerts, studio sessions, press conferences, or other productions.Featuring high-quality Neutrik components as well as a solid aluminium-steel housing, the AOC B XLR F guarantees reliable signal transmission and durability in professional environments. Its simple, high-quality design also enhances the visual appeal of any setup.All these factors make the AOC B XLR F a reliable and durable tool that provides an affordable and flexible alternative to conventional 4-channel multicores without compromising audio quality - as you have always come to expect from Palmer.
The P AOC L XLR M is a multicore adapter cable that facilitates the stable transmission of 4 separate analog and balanced audio signals or 8 digital AES3 signals through a network cable (not included). The male XLR plugs are numbered and color-coded for easy identification. The Ethercon connection is safeguarded against unlocking to prevent accidental cable disconnection.In addition to audio signals, the P AOC L XLR M enables the transmission of DMX, or MIDI control signals, along with 48-volt phantom power, via a single, standard Ethernet cable. This versatility allows it to be used flexibly across various applications, be it for live concerts, studio sessions, press conferences, or other productions.Featuring high-quality Neutrik components, a solid aluminum-steel housing, and robust mesh cables with a 50 cm splice, the P AOC L XLR M guarantees reliable signal transmission and durability in professional environments. Its simple, high-quality design also enhances the visual appeal of any setup.All these factors make the P AOC L XLR M a reliable and durable tool that provides an affordable and flexible alternative to conventional 4-channel multicores without compromising audio quality - as you have always come to expect from Palmer.
The AOC B XLR M is a multicore box that facilitates the stable transmission of 4 separate analogue and balanced audio signals or 8 digital AES3 signals through a network cable (not included). To mitigate the risk of ground loops, the etherCON connection features a ground lift switch. In addition, a secondary etherCON THRU connection – linked in parallel – facilitates the transmission of signals to external devices. Both of the etherCON connections are safeguarded against unlocking to prevent accidental cable disconnection.In addition to audio signals, the AOC B XLR M enables the transmission of DMX, or MIDI control signals, along with 48-volt phantom power, via a single, standard Ethernet cable. This versatility allows it to be used flexibly across various applications, be it for live concerts, studio sessions, press conferences, or other productions.Featuring high-quality Neutrik components as well as a solid aluminium-steel housing, the AOC B XLR M guarantees reliable signal transmission and durability in professional environments. Its simple, high-quality design also enhances the visual appeal of any setup.All these factors make the AOC B XLR M a reliable and durable tool that provides an affordable and flexible alternative to conventional 4-channel multicores without compromising audio quality - as you have always come to expect from Palmer.