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Shure PA421A PSM Antenna Combiner
MSRP: $224300
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About Inventory Status
About Inventory Status
Questions? Call or text us at 301-946-8808.
♫ In stock: It is in stock and available to ship or pickup. Apparel must be shipped from another location and is not available for in-store pickup. We can usually ship or have these items available for pickup by the next business day if they don't require inspection, special handling, or setup. Our pickup location is 11151 Veirs Mill Rd. Silver Spring, MD 20902.
📆 Preorder: It is on the way to our warehouse. We can't predict when preorder items will arrive due to current supply chain issues. If you place an order for one of these items someone will contact you to estimate the delivery date.
❓ Out of stock: We don't currently have it available but you're not out of luck yet. We still may be able to get it. If you order one of these items we will contact you with an estimated fulfillment date. You have the option to cancel the order if you change your mind.
❔ Special order: The item is so special that it needs to be custom ordered for you. Some of these items are works of art and have to be made individually. Orders for special order items must be prepaid and we cannot accept cancellations or refunds.
█ Sold out: We don't think we can get this item because it was either discontinued by the manufacturer or was limited in quantity. If you want or need this item call or text us. Sometimes we can help you track down the item through other sources or help you find something similar.
About Item Conditions
About Item Conditions
Questions? Call or text us at 301-946-8808.
New: The item is brand new as received from the manufacturer with a full manufacturer warranty. Instruments such as guitars, snare drums, drum kits, brass and woodwind instruments may be opened for photography and quality control inspection and may not be in a factory sealed box.
Mint or Open Box: The item may have been opened and tested but has been repackaged. The original packaging may have superficial issues but the item itself and any originally included accessories are in perfect, like new condition.
Display Model: These items are so cool that we put them on display in our legendary shop. The condition is brand new as received from the manufacturer with manufacturer warranty. Rest assured, these items undergo a very careful inspection before shipping.
Demo: These items have been on our sales floor for demo purposes and will likely show signs of use. The original packaging may no longer be included, but you can be assured that you are receiving an awesome item and an awesome price.
Used: The item is used. These item may have varying degrees of wear. Please read the description for information about the condition of the item. Used items do not carry a warranty.
B or C Stock: Factory refurbished. These items were purchased from the manufacturer in a refurbished condition. They will show some cosmetic issues, but nothing that would impact performance. Being that these are sealed from the manufacturer, we generally do not open these to photograph the cosmetic issues. They are guaranteed to work and may have a limited warranty or you may purchase an extended warranty in some cases. Please see the listing description for item specific information.
Description
Description
Reliable Signal Management – The Shure PA421A PSM Antenna Combiner
The Shure PA421A PSM Antenna Combiner actively combines antenna outputs from multiple PSM wireless transmitters into a single antenna, improving RF performance while reducing rack clutter. With four DC power outlets, it allows additional PSM systems to connect without requiring external power supplies. Designed for compatibility with Shure PSM transmitters such as the P9T, the PA421A provides efficient power distribution and streamlined antenna management for professional wireless setups.
- Combines multiple PSM transmitter antenna outputs into a single antenna
- Four DC power outlets supply 15 V at up to 660 mA each
- LED indicators display current draw per DC output
- Expansion port enables linking with other PSM transmitters or combiners
- Includes BNC-BNC cables and power line cords
- Compatible with Shure wideband antennas and accessories
- Reduces rack clutter while improving RF performance
Front-panel LEDs provide status of connected devices, while the expansion port offers flexible system growth. With its rugged build and professional-grade performance, the PA421A ensures reliable operation for demanding live and broadcast applications.
SPECIFICATIONS
General
- Dimensions: 43 x 401 x 365 mm (1.7 x 15.8 x 14.4 inches), H x W x D
- Weight: 4.3 kg (9.5 lbs)
- Operating Temperature Range: -18°C (0°F) to 63°C (145°F)
- Power Requirements: 100–240 V AC, 50–60 Hz
- Current Drain: 1.65 A (at 100 V AC)
- Power Consumption: 80 W max
RF Input
- Connector Type: BNC (4)
- Configuration: Active
- Impedance: 50 Ω
- Frequency Range: 470–952 MHz
- Gain: 0 / -5 dB
- Absolute Maximum RF Input: 24 dBm
- LED Indicator Minimum Detection Threshold: 5.5 dBm
Distribution Output
- Connector Type: BNC
- Configuration: Active
- Impedance: 50 Ω
- Output Intercept Point (OIP3): >30 dBm typical
Expansion Port
- Connector Type: BNC
- Configuration: Passive
- Impedance: 50 Ω
- Insertion Loss: <4 dB
DC Output
- Output Voltage: 15 V DC
- Output Current: 660 mA max per outlet
- Output Power: 9.9 W
- LED Indicators: Green >85 mA, Red >660 mA
Manufacturer: Shure
Model: PA421A
SKU: I276465-N-0-WHXB
UPC: 042406216210
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Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.
Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.
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