Description
The Shure AD8C Axient Digital PSM 8-Port Combiner is designed to streamline complex RF environments by consolidating multiple transmitter outputs into a single antenna system. Built for use with Axient Digital PSM ADTQ and ADTD transmitters, this high-performance combiner reduces intermodulation distortion while maximizing spectrum efficiency in demanding live sound and broadcast applications.
With support for both 8:1 and dual 4:1 combining modes, the AD8C provides flexible deployment options. In 8:1 mode, it enables up to 32 WMAS channels through a single antenna, while 2x 4:1 mode supports spatial diversity with two antennas for enhanced coverage and reliability. Automatic Transmitter Compensation ensures optimal signal integrity by offsetting passive RF loss, maintaining consistent output performance across all connected transmitters.
The integrated DC powering module adds redundancy to mission-critical setups, ensuring continuous operation even in power-sensitive environments. An onboard Ethernet switch allows for seamless remote management and firmware updates, making the AD8C a scalable and future-ready solution for professional wireless monitoring systems.
| Specification | Details |
|---|---|
| Product Type | 8-Port Passive Antenna Combiner |
| Compatibility | Shure Axient PSM ADTQ and ADTD Transmitters |
| Frequency Range | 470 to 960 MHz (UHF) |
| Combining Modes | Selectable 8:1 or 2x 4:1 |
| WMAS Channel Support | Up to 32 channels (8:1 mode), up to 16 channels (2x 4:1 mode) |
| Antenna Configuration | Single antenna (8:1) or dual antennas with spatial diversity |
| RF Optimization | Automatic Transmitter Compensation |
| Ethernet Connectivity | Integrated Ethernet switch for control and updates |
| Power Source | AC input with DC redundancy support |
| AC Input | 100 to 240 VAC, 50/60 Hz at 0.68 A |
| DC Output | 10.9 to 14.8 VDC, 3.3 A maximum |
| Mounting | Rackmount with included rack ears |
| Construction | Low carbon steel and aluminum |
| Operating Temperature | 0 to 145°F / -18 to 63°C |
| Storage Temperature | -20 to 165°F / -29 to 74°C |
| Dimensions | 19 x 15.2 x 1.7 inches |
| Weight | 8.6 lb |
| Included Accessories | 8 BNC cables, Ethernet cable, Ethernet jumper cable, rackmount kit |
| Warranty | Limited 2-year manufacturer warranty |
Payment & Security
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Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
