Shure PA421B-E
Professional music gear - detailed information and where to buy
Shure
PA421B-E
Product Info
Article Number:
438523
Brand:
Shure
Model:
PA421B-E
Category:
Splitters and Combiners
Price:
$2,359.50
* Prices may vary. Check retailer for current pricing and availability.
The PA421B-E is a serious piece of kit for pro touring and large-scale monitor mixes. It’s designed to handle the demands of multiple Shure transmitters, providing clean, strong signals without the headaches of wireless interference. If you’re running a professional in-ear monitoring system with multiple transmitters, this is a game-changer.
Product Description
- Shure PA421B-E
- Active Broadband Antenna Combiner
- For up to 4x Shure P9T or P10T InEar transmitters
- 4x BNC inputs outputs on the back side
- 4x DC power outputs
- 1x BNC out at the front
- Expansion port for cascading two combiners with 2x BNC in and 1x BNC out
- Internal power adapter
- Status LEDs
- 19"/ 1 U metal housing
- Frequency range: 470 - 865 MHz
- Incl. 4x 0.6 m BNC cable
- 1x power cable and 4x DC cable
PROS
- • Robust 19-inch rackmount chassis ensures reliable road use.
- • Excellent signal combining minimizes interference for complex wireless setups.
- • Expansion port allows scaling for larger in-ear monitoring systems.
- • Integrated DC power outputs simplify transmitter powering.
CONS
- • Premium-priced, a significant investment for smaller operations.
- • Limited frequency range may require careful channel planning.
- • Can be complex to configure initially, requires some technical understanding.
Product Video
Key Features
Type
Active Broadband Antenna Combiner
Channels
4
Frequency Range
470 - 865 MHz
Gain
Typically +10dB, adjustable via internal trim pots
Connections
4x BNC inputs/outputs (rear), 1x BNC output (front), Expansion port
Rack Mountable
Yes, 1U
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Frequently Asked Questions
The expansion port offers a cleaner, more integrated solution, reducing cable clutter and potentially improving signal integrity compared to daisy-chaining separate units.
While it’s designed for Shure P9T/P10T transmitters, it *might* work with others using BNC connectors, but compatibility isn’t guaranteed and could impact performance.
The trim pot allows fine-tuning of the combiner's gain to optimize signal levels and minimize any potential intermodulation distortion, requiring a bit of experimentation for best results.
