. Woofer


Crédit photo: .Kartesian company

Ideal 4" woofer for high-quality 2 ways monitoring system, or demanding HiFi bookshelves.


Designed to provide remarkable low frequency response  beside its size in a vented enclosure

(52Hz @ -3dB in 6L).

T&S parameters

Fs | 54Hz

SPL | 86dB /2,8V /1m

Re | 5.6Ω

Qms | 3.08%

Qts | 0.4%

Bl | 5.08N/A

VAS | 5.65

Mms | 6.2g

Sd | 52.8cm²

Frequency responses

On IEC baffle

Distance: 1m

Signal input: 2,83V

Low frequency simulated in  vented enclosure, 8L.

Tuning frequency= 48Hz


Dash curves: 30° & 60°

Smoothing: 1/12 Octave

Impedance measured in free air

Mechanical drawing

Unit: [mm]

Crédit photo: .Kartesian company

Advanced design

Treated paper cone

Concave dust cap

NBR surround

25mm Cu voice coil

Aluminum former

Demodulated by cooper ring

Optimized pole pieces, vented T-Yoke

Innovative DynamiK spider profile

Aluminum frame with vented spider

To be noted

On this graph, we see the effect of our innovative DynamiK spider, and our linear inductance system used on the Wom120_vMS.

The blue curve is our Wom120_vMS, and the red curve is an alternative version with an ordinary spider and no inductance linearization.

All the other parts remains the same.

We easily see the improvements provided by our devices on the mechanical damping (impedance peak) and the inductance linearity (in high frequency).

Measurement proceeded with 1V input

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