Signia Pure 312 Nx RIC – Compatibility & Accessories Guide | Japebo
Looking for the right Signia Pure 312 Nx RIC accessories? This guide helps you identify which consumables and replacement parts typically fit the Signia Pure 312 Nx RIC hearing aids—so you can choose compatible domes, receivers, wax protection and batteries without guessing.
What is the Signia Pure 312 Nx RIC?
The Signia Pure 312 Nx is a RIC (Receiver-in-Canal) hearing aid. With RIC models, the speaker (receiver) sits in the ear canal and connects to the hearing aid via a thin wire. That design affects accessory compatibility because the parts that wear out most often are the items closest to the ear: domes, wax guards/filters, and receivers.
Which accessories are commonly used with Signia Pure 312 Nx RIC?
Most users will need a mix of these accessory types over time:
Ear domes (the soft tip that sits in the ear canal)
Receivers / speaker units (the wire + speaker assembly)
Wax protection (wax guards/filters that protect the receiver)
Hearing aid batteries (Pure 312 models use size 312 batteries)
Cleaning tools (to keep sound outlets and domes clear)
Domes for Signia Pure 312 Nx RIC: how to choose
Domes must match the receiver system used on your device. For Signia RIC hearing aids like the Pure 312 Nx, compatibility is typically determined by the receiver type and the dome attachment style.
When choosing domes, focus on:
Fit type: Open (more natural ventilation), Tulip (balanced), or Closed/Power (more amplification and less leakage)
Size: Usually measured in mm—choose the size that seals comfortably without slipping
Retention: If your dome moves, consider a better size or adding a retention solution recommended for your receiver
If you’re unsure which dome you currently have, remove the dome and compare its shape (open vs closed) and approximate diameter. The safest approach is to match the same style and size you already use, then adjust only if you have a clear comfort or feedback issue.
Receivers (speaker units) for Signia Pure 312 Nx: what matters
Receiver compatibility is more specific than domes. To pick the correct receiver for a Signia Pure 312 Nx RIC, you typically need to match:
Receiver platform/type used by your device
Power level (e.g., S / M / P depending on your fitting)
Wire length (left vs right and numeric length)
If you still have the original receiver, its markings often indicate power and length. If not, check your fitting papers or ask your hearing care professional to confirm the receiver specification used in your fitting.
Wax guards / filters for Signia Pure 312 Nx RIC
Wax protection is essential for RIC hearing aids because earwax and moisture can block or damage the receiver. The correct wax guard depends on the receiver system and the sound outlet design.
To choose the correct wax filters:
Match the existing filter type you remove from your receiver (shape and insertion tool style)
Do not force a filter that doesn’t seat properly—this is a common sign it’s the wrong type
Replace wax guards when sound becomes weak, dull, or intermittent (or on your routine schedule)
Batteries for Signia Pure 312 Nx: what to buy
Signia Pure 312 Nx uses size 312 hearing aid batteries. If your device doesn’t power on, drains quickly, or cuts out, always rule out batteries first:
Use fresh 312 zinc-air batteries from a sealed pack
After removing the sticker, wait about 1 minute before inserting (helps activation)
Store batteries at room temperature and keep packs closed
Common problems and quick fixes
Whistling / feedback
Often caused by a dome that’s too small or not seated well. Try a better-fitting dome (size or style) and ensure the receiver sits correctly in the canal.
Weak or no sound
Most commonly due to a blocked wax guard or dirty dome. Replace the wax filter, change the dome if needed, and check the microphone openings for debris.
Sound cuts in and out
Try a new battery first. If the issue persists, moisture or a failing receiver may be the cause—receiver replacement is often the next step.
Where to buy Signia Pure 312 Nx RIC accessories
At Japebo, you’ll find compatible accessories for Signia Pure 312 Nx RIC—including domes, receivers, wax protection, and size 312 batteries. To avoid ordering the wrong item, confirm your receiver type, power level, and wire length (for receivers) and match your current dome/filter style when reordering.
FAQ – Signia Pure 312 Nx RIC accessories
Are all Signia domes compatible with the Pure 312 Nx?
Not necessarily. Dome compatibility typically depends on the receiver platform used with your hearing aid. Match the dome type to your receiver system and the dome style you currently use.
How do I know which receiver length I need?
Receiver length is usually marked on the receiver itself and differs for left and right. If you can’t find the marking, your dispenser/audiologist can confirm the correct length from your fitting information.
How often should I change wax guards?
Change them when sound becomes weaker or dull, or if you notice intermittent sound. Some users replace them routinely every few weeks depending on wax build-up.
What battery size does Signia Pure 312 Nx use?
It uses size 312 hearing aid batteries.
Can I use a closed dome to get more volume?
A more closed fit can increase perceived loudness and reduce feedback in some cases, but it can also reduce comfort or make your own voice sound different. If you change dome style, monitor comfort and sound quality.