Enceinte en Kit Visaton VOX 301
[K-VOX 301] 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 2 voies équipées unitairement d'un woofer Visaton TIW300, de deux mediums Visaton AL130 et d'un tweeter Visaton KE25SC.
Characteristics and sound properties
The VOX 301 extends the high-end VOX series upwards. While the mid-to-high-range is the same as in the VOX 253, the TIW 300 8 Ohm has been chosen as the woofer for this model. As a result, while the excellent characteristics experienced in the mid-to-high range remain the same, the level accuracy and dynamics in the bass department have been increased and the lower limiting frequency reduced to a remarkable 23 Hz. The VOX 301 can, therefore, be seen as the VOX variant for high-volume aficionados who like to hear concerts at close to the original sound levels in large rooms.
Extract from Stereo
The VOX series of speakers made by VISATON never fail to impress with their remarkably good low-frequency output for the size of the speakers. In addition, audiophile connoisseurs have already spread the word that the drivers used here are particularly high performance ones.(...). The VOX 301 is a fully-grown loudspeaker which is quite able to fascinate its listeners due to the highly successful mix of precision reproduction and animal power.
(...)
The VOX loudspeakers are so universal and, above all, so remarkably good that a number of well-known colleagues from our field are outspoken fans of the series. A real insiders' tip.
... Without any doubt, these loudspeakers will blow you off your feet!
Technical Data:
Rated power 300 W
Maximum power 600 W
Nominal impedance Z 4 Ohm
Frequency response 23 - 25000 Hz
Mean sound pressure level 85 dB (1W/1m)
Cut-off frequency 210 / 2500 Hz
Principle of Housing Bassreflex
Net volume 100 l + 4 l
Outer dimension height 1225 mm
Outer dimension width 260 mm
Outer dimension depth 455 mm
Plan de fabrication pour enceinte Visaton VOX 300 :
CONSTRUCTION
At first sight, the construction of the VOX 253 MTI looks complicated, which is why it is worth looking at each internal part individually first.
In the lower part of the cabinet, you can see the bass reflex tunnel, made up of the base and two upper boards. In the middle, there are five cross-reinforcements to prevent resonance. At the top of the cabinet, behind the cut-out in the acoustic baffle for the mid- to high-range unit, is the enclosure required for the mid-range cone, made up of two wooden boards. Three 8 mm holes will have to be drilled in the rear wall of the mid-range chamber for the cables. They should not be drilled directly behind the driver because otherwise there will not be enough depth available for the wires behind the magnets. The holes must be well sealed afterwards.
Fitting the TIW 250 XS into the side is a special feature. The mounting board for the TIW 250 (380 x 283 with a 235 mm cut-out) itself is glued in place from inside behind the cut-outs in the corresponding side-wall. This means that the bass driver can be recessed by 19 mm (19 mm = thickness of the boards). For optical reasons the side-wall cut-out must be made extremely accurately.
Two triangular reinforcing pieces are installed between the front panel and side walls to provide the required rigidity at the front despite the broad bevel.
The frequency crossover unit is mounted on the side-wall behind the bass cut-out.
Inner damping
The damping uses one mat placed in the medium range cabinet. The remainder is evenly distributed throughout the cabinet. The area above the tunnel opening (at the rear of the front panel) up to the lower edge of the reinforcement remains free. If, as a result of the acoustics in the room, the low-range bass is too powerful, damping this area will have a corresponding effect on the overall bass output level.
Component parts list for 1 box
The kit includes all the components listed here but not the cabinet.
Tweeter MHT 12 8 Ohm 1 piece
Midrange TI 100 8 Ohm 2 pieces
Woofer TIW 250 XS 8 Ohm 1 piece
Crossover Crossover VOX 253 MTI
Terminal BT 95/75 1 piece
Damping material polyester wool 4 bags
Special wood screws 5 x 30 mm 6 pieces
Wood screws 3,5 x 19 mm 12 pieces
Countersunk screws 3,5 x 25 mm 4 pieces
Cable 2x 1,5 mm² 2 m ; 2x 2,5 mm² 2,5 m
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Cabinet parts list for 1 box
Parts Size (mm) Quantity
Material: 19 mm MDF or chipboard
Front panel 1150 x 197 1
Side panels 1150 x 381 2
Bottom, top panel 197 x 381 2
Rear panel 197 x 1032 1
Bass reflex channel 1 197 x 270 1
Bass reflex channel 2 197 x 65 1
Braces 197 x 50 5
Midrange rear panel 197 x 399 1
Midrange bottom panel 197 x 60 1
Monting board woofer 380 x 283 1
Material: Triangular ledge
Brace 1112 x 30 x 30 2
Schéma du filtre passif de l'enceinte Visaton VOX 300 :
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