Enceinte en Kit Visaton CASABLANCA MKIV
[K-CASAB MKIV] Avis/Critiques KIT DIY, prix affiché pour les accessoires de 2 enceintes
acoustiques.
Paire d'enceintes acoustiques en kit, le kit comprend les
haut-parleurs, les câbles, les matériaux d'amortissement, les vis de fixation,
les borniers de connexions, filtres passifs...
Paire d'enceintes 3 voies équipées unitairement de UN
woofer-mediums Visaton AL200, d'un AIGU DSM50FFL et d'un tweeter
DSM25FFL.
Characteristics and sound properties
The first thing one notices about the CASABLANCA IV cabinet is its striking
design. This cabinet shape, however, has more than just eye-catching qualities,
its acoustic qualities have to be heard to be believed.
The speaker consists of a large lower chamber and a top-mounted upper chamber
and the two are interconnected through an opening that has been exactly
calculated. This is, in fact, a twin-chamber bass reflex cabinet. As a result of
the twin-chamber arrangement, it is possible, in comparison with a conventional
bass reflex cabinet, to extend the range downwards by a considerable amount. The
Helmholtz resonance of the upper chamber is around 90 Hz, that of the lower
chamber around 33 Hz.
The woofer in the CASABLANCA IV is the AL 200 8 OHM, which is so popular
among connoisseurs of high-end technology. Thanks to its long-stroke woofer, the
AL 200 8 OHM helps the CASABLANCA IV achieve unbelievably low-range bass levels
and, at the same time, producing remarkable maximum volume levels for a speaker
of this size. Another "first" in this model is the two tried-and-tested DSM 50
FFL 8 OHM and DSM 25 FFL 8 OHM titanium dome units, that guarantee transparent,
rounded sound qualities across the entire mid- and high-range.
Results: The result is an unusual speaker both as regards its design and its
construction principles with excellent low-range bass reproduction coupled with
tremendous signal fidelity.
Technical Data:
Rated power 120 W
Maximum power 180
W
Nominal impedance Z 8 Ohm
Frequency response 25 - 30000
Hz
Mean sound pressure level 84 dB
(1 W/1 m)
Cut-off frequency
700 / 6500 Hz
Principle of Housing Doppelkammer Bassreflex /
double chamber bass reflex
Net volume 70 l
Outer dimension height
1174 mm
Outer dimension width 350 mm
Outer dimension depth
400 mm
CONSTRUCTION
Although the design of this cabinet may appear at first sight to be complex,
it is, in fact, made up of simple, rectangular panels and only the radii and
openings need more careful attention. The crossover is mounted on the rear wall
behind the bass vent.
Inner damping
When damping this cabinet, remember that the opening between the larger and
smaller chambers of the cabinet (diameter 100 mm) must remain free. One bag of
damping material is inserted into the upper cabinet. The lower cabinet chamber
remains free.
Component parts list for 1 box
The kit includes
all necessary components (see list below). Cabinet parts are not
included.
Tweeter: DSM 25 FFL 8 Ohm 1 piece
Midrange: DSM 50 FFL 8
Ohm 1 piece
Woofer: AL 200 8 Ohm 1 piece
Crossover:
Crossover CASBLANCA IV
Bass reflex tube: BR 15.34 (full length) 2
pieces
Terminal: ST 77 1 piece
Damping material: 1 bag
Wood
screws: 4 x 20 mm 14 pieces
Countersunk screws: 3,5 x 25 mm 4
pieces
Cable: 2x 1,5 mm2 3,4 m
Cabinet parts list for 1 box
Parts Size
(mm) Quantity
Material: 19 mm MDF or chipboard
Lower top, bottom
panel 381 x 350 2
Lower front panel 550 x 350 1
Lower
rear panel 512 x 312 1
Lower side panels 512 x
381 2
Front for AL 200 700 x 230 1
Insertion panel 235
x 230 1
Front for DSM 50 FFL 413 x 230 1
Front for DSM 25
FFL 555 x 230 1
Upper Front panel 574 x 230 1
Top
panel 181 x 230 1
Upper side panels 181 x 555 2
Upper
rear panel 192 x 555 1
Base 50 x 312 2
Base 50 x
324 2
Plan de fabrication pour enceinte Visaton CASABLANCA MKIV
Schéma du filtre passif de l'enceinte Visaton CASABLANCA MKIV :
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