. Tweeter


Crédit photo: .Kartesian company

Innovative 28mm soft dome tweeter.

It provides very dynamic and natural sounding with low distortion.


Ideal solution for accurate studio monitor loudspeaker, or High-End system.

Very flat response (+/-1.5dB) from 1800Hz to 22000Hz (+/-2dB - On axe).


T&S parameters

Fs : 720Hz

SPL : 92.5dB /2,8V /1m

Re : 3.8Ω

Qms : -

Qts : -

Bl : 2.97N/A

VAS : -

Mms : 0.24g

Sd : 6.16cm²

Frequency responses

On IEC baffle

Distance: 1m

Signal input: 2,83V

High-pass at 500Hz (48dB/Oct)

Dash curves: 30° & 60°

Smoothing: 1/12 Octave

Rep Fr + Z final for VC mag & TLHP.PNG

Mechanical drawing

Unit: [mm]

Advanced design

28mm damped soft dome

Suspension integrated to the dome

28mm CCAW voice coil

Vented Aluminum former

Innovative Koupled chambers design

Dual NdFeB magnets motor structure

High grade (N48H) NdFeB magnets

Advanced pole pieces design

Aluminum front plate

19000 Gauss on 2.4mm height

Aluminium back chamber

Kombo magnets.png
Konstant BI(X).png
Koupled chambers.png
Crédit photo: .Kartesian company
Konstant Le(X).png
Twt28_vMS _drawing.PNG


Crédit photo: .Kartesian company

Application example

Loudspeakers used:

Elegante HiFi speaker system, only 150mm wide, which cover 40 - 22000Hz (-3dB) with very smooth and accurate sounding.

The efficiency is 90dB/2,8V/1m

The passive filter is set at 3000Hz, 12dB/Oct.

Two vents on the back side tune the enclosure at 40Hz


Contact us for more information

Loudspeakers used:

The .Kourtisane_5 is a bookshelves speaker using an innovative 5" woofer and 28mm soft dome tweeter.

The THD is incredibly low from 50Hz to 10000Hz, and it sounds really open and clear.


The bass response is amazing compared with the enclosure size : always clean, accurate, with affordable energy.

It can be used as demanding professional monitoring system or HiFi stereo product.

Note: We improve continually our products. No contractual data.