Hertz MLK 2 [6/36] Technology

The load seen by the tweeter dome rear part affects the tweeter performance, as it occurs to a

midrange or a big diameter woofer. Traditional geometry creates asymmetric movement because

the membrane can “see” a free space in the front, while there is a rear load due to the very small

volume between central pole and dome.

We designed eight vents in ML 280; they ensure a resonance-free matching with the rear damping

chambers. The volumes and vents size, as well as the special absorbing material, provide mobile

voice coil with optimal damping, generating natural, clear, dynamic sound. We put a different type

of acoustic material under the dome; it is thicker and more efficient at high temperatures and it

traces the membrane rear profile. This eliminates all remaining resonances and provides very

detailed, natural trebles.

ML 280 resonances

Traditional tweeter resonances

Section

ML 280

The elaboration of an advanced set of dynamic measurements pointed out a determinant factor,

usually ignored by most manufacturers. Mobile voice coil inductance modulation, derived from the

winding interaction with central pole and gap, seems to generate the biggest second harmonics

distortion. When the component excursion gets bigger than the voice coil height, there is an

interference which heavily affects FFT (Fourier Transfert Function), causing strong intermodulation.

ML 1600 magnet geometry, together with central pole complete shielding through a pure copper

plate, provides exceptionally constant parameters even with high power in the input and at long

excursions.

You can listen to totally controlled, accurate musical signal even with very high sound pressure and

to firm dynamics in whatever conditions.

When designing these drivers, we focused on installation versatility in order to have light speakers,

sized according to international standards. By easing installation, we give you the chance to get

extraordinary performance also in difficult conditions, without having to modify cars interiors.

These are very high quality components, whith thrilling look and very easy to use.

VOICE COIL DISPLACEMENT

+10mm

CENTERED VOICE COIL VOICE COIL DISPLACEMENT

-10mm

Center / -10 mm

displacement

+10 mm

displacement

Center

-10 mm

displacement

+10 mm

displacement

Traditional woofer ML 1600

Technology

English