Choosing the correct dome for your RIC (Receiver-in-Canal) hearing aids is essential for comfort, sound quality, and overall hearing performance. The right dome type and size can affect loudness, feedback, clarity, and even how your own voice sounds.
This guide walks you through:
The different dome types (open, closed, tulip, power)
How to choose the right dome size
When to replace your domes
1. Dome Types Explained
① Open Domes
Open domes have small vents that allow natural sound to enter the ear canal.
Best for:
· People who prefer a more natural, airy sound
· Mild–moderate high-frequency hearing loss
· Users who do not experience feedback or whistling issues
Benefits:
· Very comfortable
· Less “plugged” feeling
· More natural perception of your own voice
② Closed Domes (Vented Domes)
Closed domes have fewer or smaller vents, creating a more sealed fit.
Best for:
· Higher amplification needs
· Users who experience feedback or whistling
· Situations requiring stronger low-frequency support
Notes:
· You may feel more occlusion (fullness).
· If you feel your own voice sounds “boomy,” consider switching to open domes or a tulip dome.
③ Power Domes
Power domes provide the most sealed fit, consisting of a double-layer dome.
Best for:
· Moderate to severe hearing loss
· Maximum amplification
· Users who struggle with feedback
Benefits:
· Reduced feedback
④ Tulip Domes
Tulip domes have overlapping “petals” that adapt to different ear shapes.
Best for:
· Users who want a universal, flexible fit
· Those who find closed domes too occluding
· People who experience slipping or discomfort with other domes
Benefits:
· Good comfort and stability
· Can help reduce feedback
· Universal size fits many ear canals
2. How to Choose the Right Dome Size
General rule:
· If the dome slips out → try a larger size
· If it feels too tight or painful → go smaller
· If you hear whistling → size up or switch to closed/power dome
· If your own voice sounds too loud → size down or switch to open dome
How Often Should You Clean or Replace Your Dome?
🧼 Clean your domes every 2 days
Wipe them thoroughly with an alcohol swab. This helps prevent wax buildup and keeps sound clear.
🔄 Replace or clean your domes immediately if you notice:
· Cracks or tears
· Hardening or discoloration
· Domes slipping out more easily
· Reduced or muffled sound
· Persistent feedback or whistling
· Wax blockage that can’t be fully cleaned
· Any sign the dome is becoming loose on the receiver
🎬 Video: How to Change Your Hearing-Aid Dome
For a clear demonstration on replacing domes, watch this step-by-step guide:
How to Change Domes
How to Change Domes
Final Thoughts
Choosing the right dome is just as important as choosing the right hearing aid. The right size and style dramatically improve comfort, sound clarity, feedback control, and overall satisfaction.
If you’re unsure which dome is best for you, start with your current fit and adjust based on comfort and sound. A small change—switching from open to tulip, or from medium to large—can make a big difference.
