Palmer DELTA 4PL - 4-Channel Passive Line Splitter with Audio-over-Cat
Delivery time: approx. 1 week
- 4 independent line splitters in a solid 19" housing (1U)
- 3 balanced XLR outputs per channel (1x THRU output and 2x galvanically isolated)
- Balanced line-level splitting with impedance matching
- Audio over Cat In- and output (AES72 Type 5E) for forwarding all signals via a single Cat cable
- Eliminates ground loop hum thanks to galvanic transformer isolation
- Designed to handle high-level line signals up to +20dBu without distortion
- Extremely fail-safe, no power supply required
- Pure and unaltered low-noise audio
- Engineered in Germany, Made in Europe
DELTA 4PL is a passive 4-channel line splitter for professional audio applications and part of the Palmer Audio over Cat ecosystem. It reliably distributes line-level signals to multiple outputs without the need for external power.
Compliant with the common AES72 Type 5E standard, DELTA 4PL is fully compatible with such Audio-over-Cat systems and integrates easily into existing infrastructures.
Each of the four channels provides one THRU output and two galvanically isolated, transformer-balanced XLR outputs. Symmetrical signal routing with impedance matching ensures clean transmission and eliminates ground loop noise. All 4 channels can also be transmitted via a single Cat cable, which is especially useful in fixed installations with limited or discreet cabling.
The rugged 1U 19-inch housing is designed for standard rack mounting in both permanent and mobile environments. The reversible rack mounts allow convenient mounting from the front or rear for easier access to the most frequently used connections.
Ideal for installations, studios, and touring setups where passive signal splitting, Audio-over-Cat compatibility, and maximum reliability are essential. DELTA 4PL delivers pure, unaltered audio and robust performance. Engineered in Germany. Made in Europe.
Technical data:General| Type: | Passive |
| Material: | Steel sheet |
| Isolated transformer: | Yes |
| Transformer Ratio: | 1:1:1 |
| Ground Lift: | Yes |
| Number of inputs: | 4 |
| Number of outputs: | 12 |
| Number of channels: | 4 |
| Input signal type: | AES72 (type 5E), Balanced |
| Max. input level ( | 20 dBu: |
| Max. input level ( | 20 dBu: |
| Input impedance (Ra = 1 kO): | 10 kO |
| Output signal type: | AES72 (type 5E), Balanced |
| Number of line outputs: | 2 |
| Output impedance (Ra = 600 O): | 300 O |
| Linked outputs per channel: | 1 |
| Max. THD (1 kHz, +4 dBu, unity, unweighted): | 0.04 % |
| Max. THD (30 Hz, +4 dBu, unity, unweighted): | 1.5 % |
| Max. IMD (SMPTE, 7 kHz, 4:1, +4 dBu): | 0.02 % |
| Max. IMD (SMPTE, 60 Hz, 4:1, +4 dBu): | 0.02 % |
| Maximum air humidity (non-condensing): | 80 % |
| Width: | 483 mm |
| Height: | 44 mm |
| Depth: | 176 mm |
| Rack width: | 19" |
| Rack height: | 1 U |
| Weight: | 3.35 kg |
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Information about the manufacturerObligation to provide information on product safety (GPSR)Manufacturer:Adam Hall GmbH
Adam-Hall-Str. 1
DE-61267 Neu-Anspach
[email protected] -
Safety instructions and warningsSafety instructions and warnings (GPSR)Specific safety instructions that apply to the product can be found in the operating instructions for the product.
| Mon-Fri: | 08:00 am – 05:00 pm |
Delivery time: approx. 1 week
| Mon-Fri: | 08:00 am – 05:00 pm |