Whitepaper

DALI A/S [phone]
www.dali-speakers.com
10
The same attention was paid to the voice coil, the
magnetic system etc. Even the slightest change
of a driver in the development process has meant
hundreds of hours of verification, and in getting it
all working together seamlessly.
The woofer is housed in a rigid die-cast aluminum
chassis. The chassis has been designed to provide
a free flow of air from the backside of the cone, both
below and above the spider. Actually, the ventilated
area below the spider has increased by a solid 17%
compared to the woofer in the original IKON series.
Combined with careful milling of the front baffle,
the optimized airflow ensures very limited loss of
energy within the driver, minimizing compression
– resulting in uncolored, transparent and time
coherent reproduction.
The chassis is fixed to the front baffle with no less
than 7 screws. This anchors the chassis firmly
to the front baffle, thereby minimizing the loss of
energy in the chassis itself and avoiding resonance
- again a measure to preserve the integrity of the
audio signal.
Designing drivers from scratch
DALI’s engineers apply various
tools in the process. An example
is Finite Element Modelling, used
to evaluate even tiny changes in
driver parameters.
The illustration to the left (6½”
woofer for IKON MK2) shows
that the required flux density
has been achieved. FEM is also
applied to ensure that all drivers
feature temperature stable motor
systems.