🎙️🎧 XLR • 3.5mm Stereo Adapter

This adapter connects a 3-pin XLR connector to a 3.5mm stereo TRS plug. It’s used to route audio between professional and consumer-grade gear, often converting mic-level or line-level signals into stereo-compatible inputs.
 
🔧 Adapter Form
XLR male → 3.5mm TRS male
Used to send mic or line-level signal into stereo input (e.g., camera, recorder)
XLR female → 3.5mm TRS male
Used to receive audio from a mic or mixer into a stereo device
Typically short cables or barrel-style adapters
Passive wiring—no signal amplification or balancing circuitry
 
🖥️ Compatible Devices
🎙️ XLR side:
Microphones, mixers, PA systems, audio interfaces
Field recorders, stage gear, broadcast equipment
🎧 3.5mm side:
DSLRs, camcorders, smartphones, tablets
Laptops, portable recorders, headphone amps
Embedded boards with stereo TRS input
 
✅ Common Uses
🎥 Connect pro mic to camera or mobile recorder
🎛️ Feed mixer output into stereo input jack
📼 Record balanced audio into consumer-grade device
🧪 Prototype hybrid audio paths across gear tiers
🎤 Use lavalier or shotgun mic with 3.5mm input device
 
🧠 Signal Format
🎙️ XLR (3-pin):
Pin 2 = Hot (signal)
Pin 3 = Cold (inverted signal)
Pin 1 = Ground
🎧 3.5mm TRS:
Tip = Left audio
Ring = Right audio
Sleeve = Ground
⚠️ Adapter may sum XLR signal to both L/R channels or route to one side only
🔁 Signal remains unbalanced—no true stereo separation from mono XLR source
 
⚠️ Things to Watch Out For
🚫 Phantom power mismatch—can damage unbalanced gear
🔄 Signal may appear only on one channel (left or right)
📉 Impedance mismatch can cause low volume or distortion
🔌 Not suitable for stereo mic input—XLR is mono
🧪 Some adapters split signal; others sum it—check wiring before use
 
🛠️ Quick Tips for Beginners
🧭 Use XLR male → 3.5mm TRS male for mic-to-camera setups
🔍 Confirm TRS plug—not TRRS (which adds mic channel for phones)
🧯 Avoid phantom-powered XLR ports unless adapter is rated for it
🧵 Keep cable short to reduce interference
🎛️ Test adapter with known signal source before live use