Audix APS911 Phantom Power Supply & Adapter

Portable Phantom Power for Electret Microphones

The Audix APS911 is a compact phantom power supply and adapter designed to power energy-efficient electret microphones when traditional phantom power is unavailable. It provides a reliable solution for lavalier, headset, boundary, and hanging microphones by supplying the correct voltage through a mini XLR connection. This makes it ideal for field recording, presentations, interviews, and portable audio setups where consistent microphone power is required without relying solely on a mixer or audio interface.

Dual-Mode Operation for Maximum Flexibility

The APS911 functions in two operating modes to support a wide range of audio workflows. When powered by a single AA battery, it delivers 9V phantom power for compatible electret microphones. When connected to a standard XLR input that supplies phantom power, the unit switches to passive mode, correctly routing incoming power to the mini XLR pins. This dual-mode design ensures compatibility across portable rigs, installed systems, and professional mixers.

On-Off Switching for Power Management and Control

An integrated on-off switch allows users to conserve battery life during downtime and manage power delivery with confidence. The switch also serves as a simple mode selector, making it easy to transition between battery operation and external phantom power conversion. This added control is especially useful for mobile production environments and extended recording sessions where power efficiency matters.

Built-In Low-Cut Filter for Cleaner Speech Audio

The APS911 includes a selectable bass roll-off filter that reduces low-frequency rumble and unwanted handling noise. By cutting frequencies below 150 Hz, the filter helps improve speech intelligibility and overall clarity, particularly for voice applications. This feature is valuable for podium microphones, lavaliers, and headset mics used in presentations, worship services, and broadcast settings.

Designed for Audix Electret Microphone Compatibility

Engineered specifically for Audix electret microphone models, the APS911 ensures proper power delivery and signal integrity. It is compatible with a range of Audix microphones including lavalier, headset, boundary, and hanging designs. The compact housing and straightforward connectivity make it easy to integrate into existing signal chains without adding unnecessary complexity.

Reliable Solution for Portable and Installed Audio Systems

Whether used in corporate AV, educational facilities, houses of worship, or mobile recording kits, the APS911 offers dependable performance in a small footprint. Its ability to operate independently on battery power or adapt standard phantom power makes it a practical accessory for audio professionals who need flexibility without sacrificing reliability.