🎧🔀 1/4" • 3.5mm Stereo Splitter

These adapters split a stereo signal between 1/4" and 3.5mm connectors, allowing two devices to share one source or one device to feed two destinations. They’re essential in hybrid setups where pro audio gear meets consumer-grade equipment.
 
🔧 Splitter Varieties & Use Cases
🔌 1x 1/4" TRS Male → 2x 3.5mm TRS Female
Use Case: Share stereo output from mixer or interface with two 3.5mm headphones
Devices: Audio interface → two earbuds, or keyboard → dual mobile recorders
Ideal for studio playback, podcasting, or headphone sharing
🔌 1x 3.5mm TRS Male → 2x 1/4" TRS Female
Use Case: Connect mobile device to two pro-grade headphones or monitors
Devices: Smartphone → two studio headphones, or laptop → dual powered speakers
Common in rehearsal spaces, mobile rigs, and AV testing setups
 
🖥️ Compatible Devices
🎧 Headphones, earbuds, and headsets
🎹 Keyboards, synthesizers, and stereo instruments
🎤 Mixers, audio interfaces, and patch bays
📱 Smartphones, tablets, and laptops
📼 Field recorders, cameras, and broadcast gear
 
✅ Common Uses
🧠 Share stereo signal between two listeners or devices
🎚️ Bridge 1/4" and 3.5mm formats for playback or monitoring
🛠️ Adapt mobile outputs to studio-grade headphones
🔁 Route stereo signal from pro gear to consumer devices
🧪 Test stereo compatibility across jack formats
 
🧠 Signal Format Notes
⚙️ TRS: Tip = Left, Ring = Right, Sleeve = Ground (Stereo)
📡 Both outputs carry full stereo signal—no channel collapse
📉 Passive split—no amplification or signal conversion
🔊 No mic support—audio playback only
🔁 Not suitable for TRRS (mic+audio) unless specified
 
⚠️ Things to Watch Out For
🚫 TRS ≠ TRRS—don’t use with headset/mic combos unless rated for it
🔌 Passive splitters may reduce volume depending on load
🧯 Not designed for mixing—only duplication or routing
📉 Using with powered outputs may cause distortion—verify compatibility
🧪 Always test with known-good gear before deployment
 
🛠️ Quick Tips for Beginners
🧠 Identify TRS by two black rings on the plug
🔍 Use stereo splitters for playback—not for recording or mic input
🧲 Choose gold-plated connectors for better contact and durability
🧼 Clean jacks gently—dust can cause crackling or dropouts
🏷️ Label splitter ends clearly—especially in shared rigs or AV racks