The KBEAR Tourbillon Pro is one of those IEMs that immediately grabs your attention—both with its looks and the way it sounds. Retailing at 100USD, does it sound as good as it looks?

Spoiler : no. It sounds better.


***Reviewer’s Note***
This will be a quick review that covers ONLY THE SOUND QUALITY. The full review will be done in video form here :

Thanks to Anna from KEEPHIFI for sending this my way for evaluation. There will be a discount code you can use at KEEPHIFI for 30% off on the Tourbillion Pro which is : DexterAudio

Official website: t.co/0vWQDF3N2P
AliExpress: t.co/qy4mKx4rfw

However, the code is purely for the consumers and I am not being paid a single cent with the mentioned discount code.

Specifications :

• 10mm dynamic driver (PU + PEEK + DLC Composite Diaphragm)
• Driver design composing of dual-magnetic circuit and dual chamber cavity
• Freq response : 20 Hz - 20kHz
• Impedance : 19 ± 2 ohms
• Sensitivity : 0.78 mm 2-pin detachable cable
• Cable : OFC SPC
• Shell : Zinc Alloy all metal shell

How Does It Sound?
Testing Conditions :

- KBEAR Tourbillion Pro with provided TRI Clarion Wide-Bore Tips
- Hidizs AP80 Pro Max
- Hiby R6 iii 2025
- ifi GO Bar Kensei
- Macbook Pro M3

Tracks include but not limited to :
Kei Marimura - P.S. I Love You
Quadeca - Vanisher, Horizon Scraper
YOASOBI Discography ( The BOOK 1 - 3 )
Mac Miller Discography
Tyler, The Creator Discography
Snarky Puppy - We lIke It Here
Ryo Fukui - Scenery
Ryuichi Sakamoto Discography
Kaicrewsade Discography
Sora - re.sort


General Impressions :

• V-shaped tuning
• Has a general warm-ish tonality to it but varies with FR range
• Bass is extremely fun and exciting
• More focused on a fun and dynamic tuning, with good technicals

Bass :

• Plentiful, Fun, Deep Bass
• Lowerbass is quite domimant overall in this bottom part with good texture
• Midbass is beefy, on the bloatier side for bassy tracks
• Bass definition is alright for a newcomer, but will be apparent that it's subpar compared to other more technical sets
• Basslicks go deep and has good bounce to it
• Bass bleed present if listening to extremely bassy tracks

Vocals :

• Laidback presentation but maintains the energy overall - not recessed feeling
• Vocal timbre is dependent on the FR
  • Male will sound thinner and sometimes have a cold tinge
  • Female vocals sound more warm-ish
• Male vocals with deeper voices (Rich Brian) tend to feel more thin and sometimes nasally
• Female vocals specifically Jpop are quite pleasing and has enough note weight without that thinness
• Overall still quite transparent - so if the master is bad it will sound bad

Mids :

• Warm, smooth, light
• Overall presentation of instruments are quite enjoyable as the macrodetails provided are pleasing to listen to
• Grand pianos specifically have a slightly darker tinge which adds to ambience
• Synths are the same as vocals where :
  • Analog synths will sound more smooth and resolving
  • Digital synths will sound more hard

Upper-Mids and Treble :

• Quite good amount of energy - might feel splashy sometimes on heavy tracks
• Hi-Hats and percussions have quite good levels of dynamics - velocities can be discerned quite well where each hi-hat's volume is heard
• Details in this are are quite sparkly
• Instruments lying in this region will tend to have more microdetail presentation

Technical Capabilities :

Dynamics

The KBEAR Tourbillion Pros definitely require burn in as initally using this, there is some slight incoherencies in the midrange. After a 20-30 hour burn-in, it is gone.

Initial listening will also be very warm, after the burn in it settles in and feels less saturated

Staging

Quite good for the price, spacious and has decent reach

Imaging and Seperation

probably can be done better - occasionally there are times when things are separated but i feel like its starting to mix.

Nevertheless, this also comes down to the fact that this IEM is more focused for a musical experience rather than being technical

Detail retrieval

If we are comparing this in the context of an upgrade, it's best described as upgrading from a Hidizs MK10 to a MK12. The upgrade provides a tuning with better dynamic and musicality, but there are definitely better technical sets if we were to not put tuning as the sole priority.

Macros are great,
Micros mainly perform well in mids to uppermids

If you want a more technical set, there are better options out there.




Final Thoughts :

The KBEAR Tourbillion Pro definitely an IEM that shows that they are trying to focus on doing something well and catering to a certain demographic, rather than being the jack of all trades, but master of none.

With its fun and dynamic bass, and simple and enjoyable presentation throughout, I can see this being a good consideration for people who wants to upgrade from their entry level IEMs to something better.

Once again, thanks to Anna from KEEPHIFI for sending these my way.
The full review video form here :