AKG APS4 With No Power Supply B-Stock
In stock
Only 1 left
- SKU
- 3296H00010-B
Description
AKG APS4 Active Antenna Power Splitter (No Power Supply)
The AKG APS4 is a professional-grade UHF antenna distribution system built into a compact half-rack metal housing designed for multi-receiver wireless setups. This unit consolidates RF signals from multiple antenna sources and distributes them efficiently across up to four receivers, making it essential infrastructure for larger wireless microphone installations. The rugged construction and straightforward BNC connectivity make it a reliable centerpiece for expanding wireless system capacity without signal degradation.
Signal Distribution & RF Performance
The APS4 accepts RF input from two independent antenna paths via BNC connectors and distributes that signal across ten RF output BNC sockets, each capable of feeding a separate receiver. Switchable attenuation settings (0, 2, 4, 6, 8, 10, 12, 14 dB) allow precise level matching and prevent overdriving connected receivers, critical when managing multiple units in close proximity. The system operates across the extended 470–952 MHz frequency range, covering UHF wireless microphone bands used worldwide.
Power Management & Expandability
The rear panel antenna inputs supply 10 VDC to power up to three active antenna elements per signal path, eliminating the need for separate antenna power supplies on compatible active antennas. Two additional antenna outputs allow cascading of up to three further APS4 units for large-scale multi-zone installations. Note that this variant ships without its external 12 VDC power supply, which must be sourced separately.
Key Features
- UHF active antenna and power splitter for up to 4 receivers
- 2 x BNC RF inputs (50 Ohm), 10 x BNC RF outputs (50 Ohm)
- Frequency range: 470 to 952 MHz
- Switchable attenuation: 0, 2, 4, 6, 8, 10, 12, 14 dB
- 10 VDC supply voltage for powering up to three active antenna elements per path
- Two antenna outputs for cascading up to three additional APS4 units
- Rugged half-rack metal housing
- Requires external 12 VDC / 3500 mA power supply (sold separately)
- Includes rack mount kit (RMU4000), two front-mount antenna cables, and ten BNC cables
Road-tested antenna infrastructure for sound engineers and RF techs running multi-receiver wireless systems on stages, in theaters, and on broadcast sets. The APS4 handles heavy RF loads, scales to multiple zones, and keeps signal clean across large venue installs.
This specific B-Stock unit features a missing power supply, though the APS4 itself is in complete working order. The absence of the power adapter has absolutely zero impact on the device's performance, functionality, or structural integrity once a compatible power supply is obtained. This represents an excellent opportunity to acquire a premium AKG product at a significant B-Stock discount while retaining full manufacturer warranty coverage.
More Information
| Condition | Refurbished |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The AKG APS4 is a professional UHF antenna distribution system that consolidates RF signals from multiple antennas and feeds up to four wireless microphone receivers without signal loss, using switchable attenuation (0–14 dB) to match levels precisely. Built for live sound engineers and broadcast/theater techs running multi-receiver wireless setups across large venues or complex installations, it eliminates RF dropouts and receiver overload that plague amateur antenna solutions. This B-Stock unit ships without its external 12 VDC power supply (sold separately) but is fully functional—choose it to cut costs on proven AKG infrastructure that scales from single-zone rigs to multi-unit cascades.
Who This Is For
Great for
- ✓ Live Performance
- ✓ Broadcasting
- ✓ Theater
- ✓ Large-scale wireless microphone installations
Not the best pick for
- – Home Recording
- – Solo gigging
- – Small bedroom setups
Skill level: Professional
Frequently Asked Questions
What is B-Stock, and how does it affect this unit?
B-Stock means the APS4 is fully functional and complete with no defects to audio performance or build integrity. This unit ships without its external 12 VDC / 3500 mA power supply, which must be sourced separately; that absence has zero impact on operation once you supply compatible power.
How many receivers can this antenna system support?
The APS4 distributes antenna signal across ten RF output BNC sockets, allowing connection to up to four separate wireless receivers. You can also cascade up to three additional APS4 units to expand capacity for large-scale multi-zone installations.
What frequency range does the APS4 cover?
The unit operates across 470–952 MHz, covering the full UHF wireless microphone bands used worldwide for live sound, theater, and broadcast applications.
What attenuation settings are available, and why would I use them?
Switchable attenuation ranges from 0 to 14 dB in 2 dB increments, allowing you to match RF levels precisely and prevent receiver overload when multiple antennas or receivers operate in close proximity. This control is critical in complex multi-receiver setups.
What power supply do I need to buy separately?
You need an external 12 VDC / 3500 mA power supply, which is not included with this B-Stock variant. Once connected, the unit can power up to three active antenna elements per RF input path via 10 VDC rear-panel outputs.
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