Audio-Technica AT8539 In-line type power module, phantom power only; also for use with any A-T Wireless Essentials microphone terminated with 4-pin locking connector
Audio-Technica AT8539 In-line type power module, phantom power only; also for use with any A-T Wireless Essentials microphone terminated with 4-pin locking connector is backordered and will ship as soon as it is back in stock.
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Product Overview
The Audio-Technica AT8539 is an in-line power module that lets any Audio-Technica wireless microphone terminated with a 4-pin locking connector operate as a wired microphone. It uses an HRS-type 4-pin input connector on one end and a standard 3-pin XLR male output on the other for direct connection to a standard microphone input. A built-in low-cut filter helps minimize the pickup of unwanted low frequencies. The rugged steel housing provides durability and shielding from hum, and a snap-on belt clip is included.
Product Description

The AT8539 is an in-line power module that converts an Audio-Technica wireless microphone capsule into a phantom-powered wired microphone. It accepts an HRS-type 4-pin input connector from compatible Audio-Technica microphone elements and presents a standard 3-pin XLR male output, allowing direct connection to any standard microphone input on a mixer or interface. This makes it a practical way to repurpose wireless lavalier and headset elements for hardwired use when a wireless link is not needed. A low-cut filter is included to help reduce the pickup of unwanted low-frequency energy such as stage rumble and handling noise. The module is constructed of rugged steel for maximum durability and effective shielding from hum, supporting reliable performance in installed and portable rigs. A snap-on belt clip is included so the module can be worn or secured during use. AV integrators sourcing power modules and related Audio-Technica accessories can review this unit through the AT8539 power module page at Creation Networks. It is a dependable interface between 4-pin Audio-Technica microphone elements and standard XLR inputs.
Key Features
- Wired Operation for Wireless Mics — The module lets any compatible Audio-Technica wireless microphone operate as a wired microphone.
- HRS 4-Pin Input — An HRS-type 4-pin input connector accepts compatible Audio-Technica microphone elements.
- Standard XLRM Output — A standard 3-pin XLR male output connects directly to a standard microphone input.
- Low-Cut Filter — A built-in low-cut filter helps minimize the pickup of unwanted low frequencies.
- Rugged Steel Construction — The steel housing provides durability and shielding from hum.
- Belt Clip Included — A snap-on belt clip is included for convenient mounting during use.
Technical Specifications
| Type | In-line power module (phantom power) |
| Input Connector | HRS-type 4-pin |
| Output Connector | Standard 3-pin XLR male |
| Filter | Low-cut filter |
| Construction | Rugged steel (hum shielding) |
| Included Accessory | Snap-on belt clip |
Specifications sourced from Audio-Technica (audio-technica.com).
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- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
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