3
10
The guidelines for the Extreme System were now set out: the speaker had to have a basket relatively
open at the rear to obtain a more brilliant, color-free sound, and had to be built in the usual sizes: 165,
130 and 100 mm.
As concerns the 165 mm model, I insisted it be optimized to produce good bass tones even if installed
in the door and Emilio straightaway said: “I agree, Fred. And that’s why I’m looking to develop a truly
special speaker. I’ve got a revolutionary idea in my head…”. And so he explained his ideas to me: it
would be possible to concentrate the best dynamic and timbre performance of the entire system in a
single speaker (two 165 mm midwoofers and a 100 mm midrange in each door) by judiciously optimi-
zing the Thiele and Small parameters, making the performance extreme only in that part of the frequen-
cies involved, and by using a special cone.
You think that’s easy? Just to come up with the right cone, we and the R&D team deve-
loped almost 100 speaker prototypes in 165, 130 and 100 mm sizes, combined with
numerous magnetic circuits and various voice coils. We rejected the idea of testing by
computer right from the start – music computers don’t understand a thing! – and deci-
ded to rely strictly on our own sensations. At the end of the day, we chose the magnesium
cone and a 32 mm voice coil. Why? The answer is easy: because magnesium is an excellent material
and the performance is out of this world.
After a few more nights of tests and counter-tests, we were ready to try out the first prototype in a car.
It was such a rainy day that it seemed as if the sky was dropping on our heads. I won’t hide the fact
that the weather only inspired us with the grimmest pessimism.
We hooked up the speakers to a Synthesis amplifier and began with a number by James Newton
Howard.
Emilio and I got goose bumps: the sound was simply exceptional, with the sound-scenario sculpted so
well in front of us that we felt we were at the concert with James. It was a hugely realistic live concert
experience, exceeding all our rosiest expectations.
Only the crossover was missing.
When I suggested using the specially built passive filter that I had used for the IASCA competitions,
Emilio laughed right in my face, saying that that crossover – as big as a car – was simply
ridiculous, although he did admit it put out an excellent sound.
And so, we selected the best components (polypropylene capacitors, air-wrapped
inductors, etc.) and developed a truly special crossover, so special and spectacular that
we enclosed it in a Plexiglas housing.
It took us 18 months of hard work to develop the
Extremes. And then we camped out for hours and hours
in the Macrom demo room to compare the music of our
Extremes with that reproduced by the competitors’
speakers.
But that’s another story.
F l u s h M o u n t i n g
F l u s h M o u n t i n g w i t h r e a r c h a m b e r
These speaker units have been designed spe-
cially for use as part of a car audio system.
Correctly installed they will provide hours of
listening pleasure.
Take care to keep all dirt, metal cuttings and
other debris clear of the speaker during the
installation procedure.
NOTE: These unit is made to be used as a
tweeter in an audio system. NEVER connect it
without using the correct capacitor/condenser/filter when installing these units as part of the
system.
Remove the part where you
need to fit the tweeter and
drill a 59 mm hole in
the requied position.
Insert the Tweeter into the rear chamber and screw it
on the triangle face plate. (connect cable through rear
chamber access and put again the sponge
filter into the rear chamber)
Use the supplied screws (3MAx12)
to fix the face plate on to the desired position.
The rear chamber is designed to increase the excellent performance of the Ex 32tw.
Coupling the tweeter with a large rear air chamber, reduces the resonance frequency
of the tweeter itself and delete the reflection with the woofer.
Remove the part where you need to fit
the tweeter and drill a 59-mm hole in
the required position.
Insert the Tweeter into the back plate
and screw it on the faceplate.
NOTE:
Before screwing the face place, you need to adjust
the sprung steel behind the back plate.
By checking the thickness of the part where you need
to fix the tweeter, adjust the space between the faceplate and sprung, using the screw in the middle
of the back plate.
Extreme
E X T . 3 2 T
WARNING
Do not use the lenses to adjust the angle
of the tweeter in the support.
Summary of Contents for Extreme series
Page 1: ...Extreme series...
