FIBAE 7 Unlimited utilizes the world’s first, patent pending, Flat Impedance design. Featuring seven drivers: Dual Sub-Low, Single Low-Mid, Dual Mid-High, and Two Top-Firing Tweeters. It is an epitome of natural sound, delivering even frequency response with immense details without fatigue. We are unlocking the potential of FIBAE 7 and removing all the limits!

Thanks to our revolutionary Flat Impedance technology, FIBAE 7 Unlimited will retain its sound signature with all audio players, sound cards, amplifiers or just a smartphone. Read more

  • Dual Sub-Low, single Low-Mid, dual Mid-High, single proprietary High, single proprietary Super High
  • 122dB @1kHz @0.1V
  • 3D-printed waveguide
  • 12 Ohm @1kHz (+-1.7 Ohm 10Hz-20kHz)
  • 10Hz-21000Hz (+-5dB into IEC 60318-4 coupler)
  • Custom or universal fit

We tuned FIBAE 7 Unlimited to be an even better IEM than its predecessor. We listened to feedback from our customers and entrusted reviewers over the years and adjusted accordingly. We added more sub-bass, slightly reduced mids to make it less vocal-forward, and greatly improved high frequency presence by adopting an advanced crossover with a dedicated, 3D-printed special waveguide. The effect is an ultimate frequency response, smooth natural tonality, spacious and expansive soundstage.

FIBAE 7 Unlimited portrays musicality combined with balance and an ultimate extension of frequencies. FIBAE 7 Unlimited has been fully redesigned. The new updated crossover adds more headroom and improves the dynamics and transient response. With increased sensitivity, the updated F7 is easier to drive, achieving much higher loudness before distortion. This will prove incredibly beneficial especially for professional musicians on stage. Top-Of-The-Line modern sound signature, offering a balance between musicality and engagement. A perfect IEM for both musicians and audiophiles.


FIBAE 7 Unlimited


3.5 mm is provided by default, 2.5 mm and 4.4 mm cables available upon request.

Extra options:
Artwork: €25/side
Special faceplate (wood, carbon, aluminum): €15/side
Special canal color: €15/side
Custom shell color: €50/side
Galaxy or bespoke designs (faceplate only): €50/side
Galaxy or bespoke designs (shell only): €50/side
Galaxy or bespoke designs (whole IEM): €100/side

– Dual Sub-Low, single Low-Mid, dual Mid-High, single proprietary High, single proprietary Super High
– Two Top-Firing Balanced Armature Drivers
– Flat Impedance technology
– 122 dB @1kHz @0.1V
– 12 Ohm @1kHz (+-1.7 Ohm 10Hz-20kHz)
– 10Hz-21000Hz (+-20dB into IEC 60318-4 coupler)
– Null Audio Arete OCC Copper cable
– Custom or universal fit

– EVA case
– Wax pick tool
– Drying pellet
– Warranty card
– Ear tips in 4 sizes (universal fit only)

Non-customizable, ready-to-ship version is available here.



Ear impressions

Impressions have to be made from soft silicone material. Dreve, Egger and Westone brands are recommended. It is suggested to use foam or cotton swabs to protect eardrum.

Impressions have to be made past the second bend and shall include: full concha, helix, crus helix, tragus and antitragus.

After injecting impression material into ear the mass needs to be pushed with thumb to remove air bubbles and reduce impression wastage. Typically material cures within 5 minutes. Impressions cannot be taken out before that period.

During the process, mouth should be open with bite-block inserted between teeth in order to maximally stabilize the jaw. If a bite block is unavailable then teeth might rest against something of similar size, for example a thumb. Keeping mouth open at about 2.5 cm in relaxed manner without talking and moving is required for achieving full comfort and isolation of final product.

If above instructions are insufficient, please mail us at When your molds are done, please send them to our lab (remember about 5-15 USD customs value).

We strongly advise to send us pictures of your ear impressions for first quality evaluation. We also accept 3D-scanned earmolds.
If you live in a country where our dealers operate, they will be happy to assist you with the whole process and recommend trusted and skilled local audiologists.

Impressions can typically be made in shops selling hearing aid products. We recommend checking google maps for nearby audiologists.

In Europe we recommend Amplifon hearing aid chain.

In the US H.E.A.R. associated audiologists.
Our experience is that prices vary greatly depending on place. It can be anywhere from 5 to €100 so please contact your audiologist beforehand and ask for quote.
We are happy to take your ear impressions in our lab. Please call or email us in advance to make sure our audiologist is available for the procedure. The price is 60 PLN.
Every ears do change, but custom IEMs should fit an adult for a few years.
Impressions will be stored at our lab in physical form for up to 2 years, and indefinitely in form of 3D scans. If you want molds to be sent back together with the order please select this option at check out or let us know via e-mail.
In some unique cases - yes - especially in case of silicone IEMs, which are manufactured differently than acrylic and require thicker shell walls. Therefore, if your ears are compatible with, say, 8-driver acrylic IEMs, it doesn’t automatically mean that 8-driver silicone IEMs will fit your ears.

In most cases we can make a judgment from picture of your impressions and thus spare you unnecessary cost of shipping if your ears are too small.

Our typical turnaround is 4-5 weeks from the moment of accepting your ear impressions and getting payment.

Note: turnaround time is subject to change depending on current load. Please inquire before ordering.
We ask for payment only after receiving and accepting your ear impressions.
Wire transfer in EUR or USD is the best option.

Make sure to check charges rate at your bank first!
For overseas transfers we recommend using Transferwise service.

We also accept PayPal in EUR or USD, however it involves additional fee of 4%.
All of our clients are equally important so all orders are processed chronologically based on payment date, no matter if they concern the cheapest or the most expensive IEMs.
It all depends on what stage your order is. Please contact us at and we will do our best to help you.
Sure! Please call us or mail us to make an appointment.
No, we no longer offer such services.
Surely, customs offer great fit and level of isolation you won’t ever get from universal IEMs. More real estate inside a custom shell allow for more sophisticated acoustic solutions.