. Compression drivers


Crédit photo: .Kartesian company

Compression driver designed for high-end products and demanding studio monitoring speaker.


It has been designed to be used in 2 ways system, with a crossover point  between 1000Hz and 1500Hz.

Motor structure and moving parts use our innovative technology to provide extended response, over 20kHz.

T&S parameters

Fs | 1020Hz

SPL | 106dB /2,8V /1m

Re | 14.2Ω

Qms | NA

Qts | NA

Bl | 9.6N/A


Mms | 0.31g

Sd | 8.25cm²

Frequency responses

On IEC baffle

Distance: 1m

Signal input: 2,83V

Smoothing: 1/12 Octave

High pass filter at 500Hz, 48dB/Oct

Measured on normalized tube.

Mechanical drawing

Unit: [mm]

Advanced design

Photos in progress - coming soon

Crédit photo: .Kartesian company

Mylar annular diaphragm

Non-resonant asymmetric diaphragm

Polyimide vented former

38mm CCAW  ribbon voice coil

Twin damped back chambers

Radial compression phase plug

Optimized pole pieces

Demodulated by Cu and Al rings

NdFeB magnet (N48H grade)

Machined aluminum troath

To be noted

This graph shows the frequency response and the related distortion rate when our Cmp38_vHE is used with exponential horn, 285mm output diameter, 2V input signal,

Thanks to the dual chambers device, tuned to maximize the efficiency in the mid-band, the high-pass filter can be set at 10kHz, and get flat frequency response from 1000Hz to 22000Hz.

This filtering method minimize the diaphragm excursion and the related distortion.

Note: We improve continually our products, as a consequence, so technical information shouldn't be updated. Non contractual data.