Used Audio Technica AT8531 Pro Sound Accessory

Used Audio-Technica AT8531 Power Module

Overview:

The Audio-Technica AT8531 is an in-line power module designed to work with Audio-Technica’s line of condenser microphones that use the UniPak or miniature mic system. It allows these microphones to be powered via standard 48V phantom power or a single 1.5V AA battery, making it an extremely versatile solution for both studio and field use. The AT8531 delivers clean, consistent power to the connected mic while maintaining low noise and a flat, accurate frequency response.

Features:

• Works with Audio-Technica condenser mics using the UniPak system
• Provides power via 48V phantom power or one AA battery
• Standard 3-pin XLR output for connection to mixers, interfaces, or recorders
• On/off switch and low-frequency roll-off (bass cut) control
• Compact, durable metal housing designed for long-term reliability
• Ideal for stage, broadcast, or recording applications

Condition:

This unit is in very good condition with minor cosmetic wear from normal use. All switches, inputs, and outputs function properly. A solid, dependable power module perfect for powering Audio-Technica lavalier or instrument microphones in professional audio setups.

Item Condition & Testing

All used gear is fully tested when it arrives and again before shipping, so you can buy with confidence. Any included accessories are shown in the photos, and any functional issues are always noted. Expect normal cosmetic wear that may not show clearly in pictures. Since items are also available in-store, light demo wear may be present.

Shipping

We ship to the contiguous 48 states using flat-rate pricing that includes insurance. If shipping looks high, send us your ZIP for a more accurate quote. Orders outside the lower 48 may require additional costs—please reach out before purchasing. Larger or fragile items (amps, cabs, drum kits, etc.) may be local pickup only; contact us if you’re unsure.

Returns

Returns are accepted within 48 hours of delivery. The buyer covers return shipping, and a 20% restocking fee applies. If you have any questions before buying, feel free to message us—we’re happy to help.

Order Issues

If your order isn’t processing, double-check that your billing and shipping addresses match. For any other issues, just reach out and we’ll get it sorted quickly.