Vanco AD511 3.5mm Mono to 1/4 Inch Mono Audio Adapter

Product Description

The VANCO AD511 is a compact audio adapter that converts a 3.5mm mono jack to a 1/4 inch mono plug, enabling connection between devices with mismatched audio ports. This adapter fits into the interconnect cable category and serves as a direct, passive signal bridge with no power required. It is a single-unit item suited for audio technicians, AV installers, and electricians working with sound reinforcement, intercom, or low-voltage audio systems where port compatibility is a common jobsite obstacle.

This adapter is used in residential and commercial AV installations where a 3.5mm mono output needs to interface with a 1/4 inch mono input, or vice versa depending on orientation. Typical applications include mixing boards, amplifiers, intercoms, PA systems, and portable audio equipment. It is a standard solution for bridging consumer-grade and pro-audio connectors in a single adapter without additional cabling.

Key Features

• Converts 3.5mm mono jack to 1/4 inch mono plug in a single compact unit
• Passive design requires no external power source
• Single-unit packaging suitable for individual installations or inventory stocking
• Fits interconnect cable applications in low-voltage AV systems

Compatibility

Designed as a standard interconnect adapter for use with mono audio devices featuring 3.5mm or 1/4 inch mono ports, typical of pro-audio and commercial AV equipment.

Installation Notes

Installation requires no tools and no power shutdown. Ensure both connected devices are at low or zero volume before making or breaking the connection to avoid signal transients that can damage speakers or amplifiers. Low-voltage AV work should follow applicable local codes and manufacturer guidelines for the connected equipment.