IEM Earphones Manual
๐ Table of Contents
- What's in the Box
- Quick Start Guide
- Finding Your Fit
- Connecting to Your System
- Care & Maintenance
- Specifications
- Frequently Asked Questions
CODA Earphones Quick Start Guide
Professional Dual Driver IEM Earphones
๐ฆ What's in the Box
- CODA Earphones (1 pair)
- Detachable cable (5ft / 1.5m)
- Hard-shell carrying case with carabiner clip
- Silicone ear tips (S, M, L)
โ Quick Start Guide
- Select your ear tips: Try each size (S, M, L) to find the best seal. A proper seal is essential for sound quality and noise isolation.
- Attach the cable: Align the 2-pin connectors and gently push until secure. The left earphone has a blue indicator; the right has a red indicator.
- Position the earphones: Insert the ear tip into your ear canal, then loop the cable over and behind your ear. The flexible ear hooks will conform to your ears.
- Cinch for security: Slide the cable cinch up toward the back of your head for a secure fit during performance.
- Connect to your system: Plug the 3.5mm TRS connector into your wireless IEM receiver, wired monitoring system, or any device with a 3.5mm headphone output.
- Adjust volume on your source device: Start at a low volume and increase gradually to protect your hearing.
๐ง Finding Your Fit
Why fit matters: Proper fit directly affects sound quality, bass response, and noise isolation. An improper seal is the most common cause of "thin" or "weak" sound.
How to test your seal:
- Insert the earphones and play music at low volume
- Gently press on the earphones โ if sound quality improves significantly, you need a larger tip size or deeper insertion
- A good seal should reduce ambient noise by up to 36dB
Tips for best results:
- Try all three tip sizes โ most people donโt use the size they expect
- Insert the tip fully into your ear canal, not just resting at the entrance
- The over-ear cable loop should sit comfortably without pressure
- Use the cinch behind your head to prevent cable pull from affecting the seal
๐ Connecting to Your System
Compatible with:
- AirSync G2 Wireless IEM System
- IEM-1, IEM-1R, IEM-Pro Wired Monitoring Systems
- Any in-ear monitoring system with 3.5mm output
- Smartphones, tablets, laptops, and audio interfaces
Cable details:
- 5ft (1.5m) high-purity oxygen-free copper cable
- 3.5mm TRS termination
- Standard 2-pin detachable connector (compatible with standard replacement cables)
๐งผ Care & Maintenance
After each use:
- Wipe earphones and ear tips with a dry, soft cloth
- Store in the included hard-shell case to prevent damage
Ear tips:
- Remove and clean ear tips periodically with mild soap and water
- Allow tips to dry completely before reattaching
- Replace ear tips if they become worn, torn, or no longer seal properly
Cable:
- Avoid sharp bends or kinks in the cable
- Disconnect by gripping the connector, not pulling the cable
- When storing, loosely coil the cable โ do not wrap tightly
What to avoid:
- Exposure to extreme heat or moisture
- Sharing earphones without cleaning (hygiene)
- Forcing connectors โ they should attach with gentle pressure
โ๏ธ Specifications
| Specification | Value |
|---|---|
| Driver Configuration | Dual-magnet dynamic (10mm) + balanced armature |
| Frequency Response | 20Hz - 20kHz |
| Sensitivity | 118 dB |
| Impedance | 22ยฑ3ฮฉ |
| Noise Isolation | Up to 36 dB |
| Cable Length | 1.5m / 5ft |
| Cable Material | High-purity oxygen-free copper |
| Cable Termination | 3.5mm TRS |
| Earphone Connector | 2-pin detachable |
Frequently Asked Questions
ย
The sound is thin or has no bass. What's wrong?
This is almost always a fit issue. Try a larger ear tip size and ensure you're inserting the earphones deep enough to create a seal. Test by gently pressing on the earphones while listening โ if bass improves, you need a better seal.
Which ear is left and which is right?
The left earphone has a blue indicator at the 2-pin connector; the right has a red indicator. The cable connectors are also marked L and R.
Can I use these with my phone or laptop?
Yes. The CODA Earphones work with any device that has a 3.5mm headphone output. For devices without a headphone jack, use a USB-C or Lightning to 3.5mm adapter.
Are these compatible with other wireless IEM systems (not just Coda)?
Yes. The CODA Earphones work with any in-ear monitoring system that has a 3.5mm output, including systems from Shure, Sennheiser, Xvive, and others.
How do I replace the cable?
Gently pull the 2-pin connectors straight out from each earphone. To attach a new cable, align the pins and push gently until secure. The CODA Earphones use a standard 2-pin connector compatible with most aftermarket IEM cables.
The earphones keep falling out. What should I try?
First, try a different ear tip size. Then ensure the cable is looped over your ear correctly and use the cinch behind your head to reduce cable movement. A proper over-ear fit should keep the earphones secure even during active performance.
How much noise do these block?
Up to 36dB of passive noise isolation when properly fitted. This is enough to significantly reduce stage volume while allowing you to hear your monitor mix clearly.
Can I use just one earphone?
Yes. Many musicians prefer monitoring in one ear while leaving the other open to hear the room. Simply disconnect one earphone from the cable.
Need help?
Visit our support page at codamusictech.com/contact-us or email support@codamusictech.com.