Drivers - JAMO C 80 CEN Brochure

Drivers

Tweeter
The DTT/WaveGuide tweeter in the C 80 series is a completely new development.
One of the biggest challenges when designing speakers is preventing unwanted
cabinet vibrations from clouding or colouring the sound. High frequencies are par-
ticularly susceptible. This problem has effectively been solved thanks to the inge-
nious Jamo Decoupled Tweeter Technology (DTT).
Difference between vibrations in a normal face-plate and vibrations in a face-
plate employing Decoupled Tweeter technology.
By decoupling the tweeter from the rest of the loudspeaker, vibrations transmitted
from the front baffl e to the tweeter are reduced by more than 20dB, resulting in an
uncommonly detailed and realistic reproduction of high frequencies.
Another big challenge is to secure a uniform dispersion pattern in the treble and
midrange frequencies. In general the dispersion gets narrower the higher the fre-
quencies – and this applies to both midrange and treble. Consequently in the area
where the mid/woofer and the tweeter should integrate smoothly, you'll have a
mid/woofer with a narrow dispersion and a tweeter with a relatively wide disper-
sion.
This problem is solved with the Jamo WaveGuide, which is a carefully designed
concave faceplate into which the 1in DTT tweeter is integrated. Doing so results in
a uniform treble dispersion pattern from 10kHz all the way down to the critical x-
over point at 2kHz and thus secures a seamless transition to the mid/woofer – both
when listening on and off axis.
Normal face-plate
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