. Coaxial


Crédit photo: .Kartesian company

Advanced coaxial speaker designed to cover the audio band from 80Hz to 22000Hz with high dynamic range, natural sounding and high power handling.


Our Cox165_vPA is one of the best choice for compact professional source point, working with a subwoofer below 80Hz.

We recommend a vented enclosure of 8 to 10L, tuned at 75Hz, and a crossover point at 3100Hz.

(See our .Koncept .Korpus SP6)

T&S parameters


Fs | 63Hz

SPL | 93dB /2,8V /1m

Re | 5.9Ω

Qms | 18%

Qts | 0.253%

Bl | 8.7N/A

VAS | 14.93

Mms | 8.3g

Sd | 117cm²

Frequency responses

On IEC baffle

Distance: 1m

Signal input: 2,83V

Lines: speaker axe

Dash curves: 30° & 60°

Low frequency simulated:

10L vented enclosure

Tuning frequency: 75Hz

Blue: Woofer

Yellow: Tweeter

Smoothing: 1/12 Octave


Impedance measured in free air

Mechanical drawing

Unit: [mm]

Advanced design

Crédit photo: .Kartesian company


Carbon fiber cone

NBR low profile surround

36mm Cu voice coil

Kapton former

Demodulated by Aluminum ring

Optimized pole pieces

.kiet coil venting

Innovative .dynamiK spider profile

Fully opened Aluminum frame

Dual magnets (Fe & NdFeB)


Treated aluminum dome

KSV former

1inch CCAW  voice coil

Al. cooled back chamber

Dome front radiation

Low compression rate

Optimized pole pieces

High grade NdFeB magnet (N48H)

To be noted

A 2nd order passive crossover located at 3100Hz provides the frequency response shown on this graph.

The result is a smooth frequency response from 100Hz to 22000Hz at +/-3dB.

It as been measured on our .Koncept named .Korpus SP6

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