Full Description
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What's included?
All the essential cables are provided, making the unit ready to install straight out of the box.
- 1 x SubZero Four Channel Antenna Divider
- 1 x DC Power adaptor 12V-15V/5A
- 1 x User manual
- 4 x DC adaptor power cables, 50cm
- 10 x BNC-BNC signal cables, 50cm
Reduce clutter with shared antennas and power
This unit allows you to connect one pair of UHF antennas (sold separately here) and distribute their received signals to up to five wireless receiver units. That means fewer antenna cables and less setup hassle, ideal for live shows or touring rigs where space and speed matter. It streamlines the job while helping keep your signal routing simple and reliable.
The SZ-AD4 also includes four DC power outputs, allowing you to run up to four wireless receivers entirely independently. This helps eliminate the need for separate power adapters, keeping your rack setup clean and centralised, especially useful in mobile or compact systems.
Wide UHF compatibility
With coverage from 470 MHz to 1000 MHz, the SZ-AD4 works seamlessly across common UHF wireless system frequencies. Whether you’re using it for mics, in-ear monitors or instrument packs, the wide range means you won’t need to worry about signal dropouts or frequency mismatches during setup.
Built for racks and tidy cable runs
The SZ-AD4 comes with rack ears ready to mount into any standard 19” rack setup. Whether you're installing into a flight case or a venue rack, it fits in easily and stays secure. On the front, two antenna cable threading holes let you route cables from the back to the front panel, ideal for rack-mounted systems where front access is essential. This helps keep cable runs neat and accessible, saving time during setup and teardown.
Expand as your system grows
Need to connect more receivers? No problem. You can daisy-chain two SZ-AD4 units to expand the number of available outputs to nine. It’s a simple step that makes scaling up your setup fast and stress-free, without needing a complete overhaul or additional antennas.
Specifications
- Carrier Frequency: 470-1000MHz
- IIP 3: +32dBm
- RF Output Gain: +0.1dB+1dB
- Input / Output Gain: +0.1dB+1dB
- Output Isolation Rate: > 18dB Between 500-1000MHz
- Band Selecting: Low End ≥35dB, High End ≥30dB
- Input / Output Impedance: 50Ω
- Power Supply: 12-15V DC

The latest in music technology, for modern musicians and producers. SubZero combines innovation and quality, with the determination to help you get the sound you want. From studio and guitars, to powerful PA systems and home audio setups - SubZero is all about cutting-edge audio.