With the LA-Stick 4x4, Voice-Acoustic has created a completely new and revolutionary species of loudspeaker: the Line-Array Stick, in short LA-Stick.
At first glance it resembles an ordinary column speaker, of which there are three types:
A basic column with a row of midrange drivers and a high-frequency waveguide either at the top or in the middle. This type of loudspeaker only finds solitary application; it cannot be variably scaled because effective coupling in the high frequency area is not possible when adding loudspeakers; they are singular sound sources.
Then there are column speakers with a continuous row of wide bands or midrange drivers. These columns can be connected to one another, but they cannot be directed. With each additional unit, the vertical directivity becomes inevitably narrower. To expand the directivity in the listener area, the boxes in a loudspeaker series are offered in a multitude of straight and bend forms. This results in a relatively high number of speaker types needed, reducing flexibility and complicating storage.
Another approach is the so-called dsp beam steering. The loudspeakers are operated in-line from top to bottom. Each transducer in the column has to have its own power amplifier channel and DSP-controller. An electric phase and time delay as well as an algorithm compiler calculate and electronically adjust the directivity. However, this technology is extremely expensive and too complicated for many users.
Large line-arrays in trapezoid-shaped boxes can be angled in order to project the narrow vertical directivity field to the listener area in a very practical way. This goal is achieved very precisely, avoiding unintended room reflections, and enhancing the amount and quality of sound.
In coupling the line-arrays to a so-called coherent wavefront, interference is prevented and system range increased. This explains the line-array effect in simple terms.
The development of the LA-Stick 4x4 has made it possible to adapt this technology into a column format, incorporating many of the advantages found in a functioning line-array into compact dimensions, making it so much more user friendly. Not a column speaker but a line-array stick! Not only that, but just as with the large line-arrays, the LA-stick boasts a trapezoid-shaped base and top with an 8˚ slope. The inclination angle can be externally fine-tuned via a newly developed, innovative ball-bearing-mounted spindle mechanism on the back panel. This very sturdy mechanism renders the bending joints in ball-lock-pin form on the front side of the loudspeaker unnecessary. No mechanism or mounting parts are visible on the front side. With this discreet look it is easy to integrate and use the loudspeaker in each sophisticated ambiance.
Through a special woodworking method, the box sides have been given a tapered shape emphasizing their elegant appearance. With the LA-stick, depending on the desired acoustic pressure, any number of long lines can be constructed with only one loudspeaker type. This makes the LA-series the most flexible column-style loudspeaker system in the world. A construction incorporating 16 Ω output impedance allows for operation of up to 8 LA-sticks with one self-powered active base or up to 16 with one HDSP-6 power amplifier.
The next generation lightweight 4” neodymium wide-band transducers are waterproof. The LA-stick can be used in humid or high-moisture environments, even temporarily in rain. Sophisticated accessories allow for diverse applications and installation possibilities.
4 x 4" Neodym wideband transducer with 0,75" voice coil
161 Hz - 18 kHz (- 10 dB)
210 Hz - 15,4 kHz (+/- 3 dB)
Coverage range (h x v)
70° x 25° (vertically dependent on the angle between the elements)
Powerhandling (AES / Program / Peak)
120 W / 240 W / 480 W
Sensitivity 1 W/1 m
96 dB SPL
Sound pressure at (AES / Program / Peak)
116 dB SPL / 119 dB SPL / 122 dB SPL
2 x NEUTRIK NL4 IN/OUT 1+/- (4-pole looped-through)
Polyurea coating in RAL 9005. Special colours also possible with Warnex textured paint
Dimensions / Weight
419 (H) x 119 (W) x 160 (D) mm / 3,2 kg
Carrying bag for LA-Stick 4x4 and 8x4
Item no. 500442000
Carrying bag for up to two LA-Stick 4x4 with angular mechanics or one LA-Stick 8x4. Including insertable partition, if you want to carry the LA-Sticks without angle mechanism separately.
Heavy-Duty Flightcase for LA-Stick 4x4 and 8x4
Item no. 500443000
Heavy-Duty Flightcase for up to four LA-Sticks 4x4 included angle mechanism or two LA-Stick 8x4. 2 internal 90°rolls, 2 large Butterflys, 6 large folding handles, 7 mm wood with black and scratch-resistant surface, stable 35 x 35 mm edge profile with 2.5 mm thickness and 5 mm outer radius and recessed grooved rivet, truck pack size. Case can be run like a suitcase trolley. Dimensions/Weight: 172 (h) x 590 (w) x 991 mm (d) / 15,8 kg.
U-mounting bracket LA-Stick
Item no. 400441001
Stable swivel bracket for installation on trusses and ceiling. Is also used by several LA sticks to mount directly to a subwoofer without spacer bar.
Spindle mechanics LA-Stick
Item no. 400443001
The inclination angle can be externally fine-tuned via ball-bearing-mounted spindle mechanism. This very sturdy mechanism renders the bending joints in ball-lock-pin form on the front side of the loudspeaker unnecessary.
Tilt Adapter for LA-Stick
Item no. 4004450X1
Tilt adapter for connecting and aligning the speakers to each other instead of the spindle mechanics. The four adapters each have a fixed angle of 0°, 4° and 8° degrees and are attached with the speakers in the back existing M6 and M10 screws.
Inclinable Stand Adapter
Item no. 999919780
With this adapter you can attach speakers without built-in flange on stands or wall brackets and adjustable up to 30 ° in the tilt.
Item no. 400444001
Tool-free flight-mechanics for exact alignment of the La-Stick in the horizontal and vertical axis.
Universal suspension device for flight mechanics
Item no. 409992001
For suspending speakers from very high ceilings or trusses. Prevents speakers from twisting due to two parallel steel cables or chains and allows horizontal alignment due to central pivot axis. Suitable for Easyfly mechanics, LA-Stick flying mechanics, Ikarray-8 flying mechanics and all U- and C-brackets. Delivery without further mounting accessories.
Wallholder for LA-Stick 4x4
Item no. 999908131
Wallholder for LA-Stick 4x4, for hanging on the M10 thread from the top. Alignment in both axes.
Speaker ceiling mount
Item no. 999924496
Robust and useful loudspeaker ceiling mount with 250 mm distance and internal cable management. The swivel area is +/-45 °. Within the parameters - the settings range from 0 to 45°. Max. load capacity: 25 kg. Available in white and black.
Tilting and swivelling wall holder
Item no. 999924481
Wall holder with large wall plate for heavy boxes. The mounted box can be swivelled sideways and tilted up to 30 °. Easy installation due to practical mounting and screwing. Max. load capacity: 25 kg. Available in white and black.
Wall mount with extension
Item no. 409992031
Wall mount with extension (180° horizontal and 30° vertical adjustment) for parallel positioning. Max. Load capacity: 25 kg. Available in white and black.
Tilting and swivelling wall holder XL
Item no. 999924120
Stable wall holder with tilt and swivel orientation: 180° horizontal, 22° vertical adjustable in 11 steps. Expanding mandrel for play-free seating in the tripod base of the speaker. Max. load capacity: 50 kg.
Wall- and Trussholder
Item no. 999924150
Wall- and Trussholder with a joint and a tube clamp, circa 520 mm long. Max. load capacity: 50 kg.
Item no. 999981201
With this traverse clamp you can easily and loosely mount your devices to all common traverses with 48-51 mm strap tubes. The clamp impresses with its compact design, its lightness and the maximum tensile load of 100 kg. Locking screw M8 Wing nut and device screw M10.
Item no. 999917370
M10 x 40 mm eye bolt is screwed into rearward mounting point and the speaker can also be secured directly to the housing with a safety cable.
Screwable quick connect
Item no. 999908000
Screwable quick connect member for e.g. single and double stud fittings or safetys.
Item no. 999963100
1 m safety cable 6 mm Ø for securing a suspended loudspeaker. One side with a screwable quick connect.
Speaker stand crank
Item no. 999921300
Stable stand for cranking with double protection against falling. Height: 139 to 218 cm. Max. load capacity: 50 kg.
Item no. 999921467
Stable stand with expanding mandrel system which provides a tight and firm fit for the speaker. Double protection against falling. Height: 132 - 220 cm. Max. load capacity: 50 kg.
Distance rod with crank
Item no. 999921340
Distance rod for cranking with expanding mandrel system which provides a tight and firm fit for the speaker. Height: 92 - 152 cm. Max. load capacity: 50 kg.
Item no. 999921368
Telescopic rod with expanding mandrel system for play-free seating in the tripod base. Height: 110 to 180 cm. Max. load capacity: 35 kg.
Item no. 999921441
Adapter for mounting on stands or speaker rods. With Expanding mandrel system which provides a tight and firm fit for the speaker.
Iron base with weight plate
Item no. 999912311
The set includes a flat 10 kg iron base Ø 45 and a 5 kg weight disc. It is suitable distance rods with an M20 screw thread. The weight disc can be mounted tool-free.
Carrying bag for round base Ø 45 cm
Item no. 999912399
Padded bag made of robust, water-repellent nylon, with space for a round base Ø 45 cm with weight disc. The bag has two carrying straps with a soft velcro handle, a sturdy zipper and a transparent window for labels.
Item no. 999926705
The iron base 55 x 55 cm has a carrying handle and a cable bushing. The base is suitable distance rods with an M20 screw thread. Weight: 13,5 kg.
Carrying bag for iron base
Item no. 999933100
Padded bag made of robust, water-repellent nylon, with space for a iron base 55 x 55 cm. The bag has a padded handle and a stable zipper.
Carrying bag for 2 x speaker stand/ rod
Item no. 999920000
Carrying bag for two speaker stands or distance rods, also with crank. Two inside compartments with zipper and sturdy handles. Material waterproof nylon.
Cable Clip for speaker stand/ rod
Item no. 999935000
The cable clip made of robust, durable ABS plastic is specially designed for speaker stands and distance rods with 35 - 36 mm tube. It adheres firmly to the tube and holds the cables securely and neatly in the 24 x 16 mm guide accessible from the outside.
speakON cable 0.5/1/3/6/10/15/20/30 m
Item no. 80440XXX1
Speaker cables in various lengths with Neutrik plug NL4FX. 4 x 4 sq mm, each wire 224 x 0.15 copper, diameter 11 mm, weight 273 g / m. Assembled with some pressed ferrules for maximum contact area and minimal contact resistance.
Item no. 999654669
Adapter to connect two speaker cables.