Info
One system. Three dispersion angles. Maximum flexibility. Tailored coverage: 70°, 90° or 110°.
The Convert-412PS from Voice Acoustic is a 3-way, bi-amped, fully horn-loaded, high-performance point-source loudspeaker. Four 12-inch drivers, arranged symmetrically in a V-shape, drive a large, CAE-simulated exponential horn via a compression (slot loading). A coaxial 2-way mid-high-frequency driver with 4-inch and 2.5-inch voice coils feeds into a large, interchangeable 1.4-inch constant-directivity horn. The user can choose between coverage patterns of 70° x 50°, 90° x 50° and 110° x 50°. This allows the Convert-412PS to be adapted to different sound reinforcement geometries – from wide near-field coverage to targeted coverage of deep spaces.
Four 12-inch drivers. One horn. Low-mids redefined. More pressure, more dynamics, more headroom.
The newly developed 12-inch neodymium drivers feature high sensitivity and a patented dual-gap drive system. The dual-gap motor design linearises the inductance and distributes the heat generated across a larger voice coil surface area. This reduces power compression at high output levels and ensures the driver remains precise even with large excursion. The four bass-reflex ports are aligned directly with the magnet systems and provide additional cooling through their own excursion.
The drivers are partially covered by the horn’s profile and radiate into the horn via a contoured cut-out that matches the diaphragm geometry, further increasing efficiency. This combination of four high-sensitivity 12-inch drivers, efficiency gains through compression and high horn loading generates reserves and dynamics that set a new benchmark for powerful low-mids.
With its 4x 12‘ configuration, the Convert-412PS is actually slightly more compact, significantly lighter and considerably louder than classic large-format dual 12’ horn systems of earlier designs.
Coaxial precision – even at highest levels. Midrange and high frequencies from a single point.
With the Convert-412PS, midrange and high frequencies are generated at the same acoustical point. The coaxial driver reproduces both frequency ranges through a single 1.4-inch throat, ensuring they are radiated in phase and without any time delay between them. In comparison to systems with physically separated midrange and high-frequency horns, this results in a consistent, coherent dispersion pattern across the entire crossover range.
The result is an exceptionally cohesive and natural sound image with high transparency and detail resolution. Voices, instruments and sounds are reproduced precisely and clearly; transients remain immediate, and even complex audio material retains its structure at high sound pressure levels. During development, it was particularly important to us to achieve a powerful yet never intrusive sound character: the Convert-412PS sounds confident, balanced and pleasant even at high volumes.
A passive crossover, developed specifically for this driver-horn combination, provides a phase-linear crossover at 3,600 Hz. The separation between the low-frequency and the coaxial mid-high-frequency range is achieved actively at 650 Hz. FIR filters compensate for the time delay, enabling the Convert-412PS to achieve time alignment comparable to active 3-way crossover, despite its passive mid-high-frequency crossover. In addition, the FIR filters linearise the phase response.
The result is a system that is both time- and tone-coherent across the entire frequency range – with the precision of a modern high-performance system, without sacrificing musicality and naturalness for the sake of maximum sound pressure. The Convert-412PS is not simply a loudspeaker that is just loud. It is the sound that gives a room its energy.
Controlled energy. Exactly where it is needed. The architecture dictates the space. The Convert-412PS adapts.
The constant-directivity mid-high-frequency horn, made from thick-walled, robust GRP, is available in three dispersion patterns: 110° x 50°, 90° x 50° or 70° x 50°. It can be purchased separately and swapped out by the user. Matching full-range and cut-top presets are available for each of the three horns. The sturdy GRP construction and a braced metal mounting frame prevent unwanted resonance caused by vibrations at high sound pressure levels. The frame also serves as rear support for the large driver, preventing transport damage.
Flying. Clustering. Ground stacking. Maximum freedom in setup.
For flying applications, the patent-pending Easyfly-mechanics is integrated into the top of the enclosure. It allows tool-free suspension and precise alignment in a matter of seconds, whilst being significantly more elegant and compact than a conventional flying bracket. The Easyfly-mechanics clicks into the loudspeaker in seconds and is automatically secured by two spring-loaded locking pins.
An additional rigging frame and an integrated, integrated 3-point steel-in-steel flight hardware within the enclosure allow further Convert-412PS to be flown with each other. The loudspeaker housing is trapezoidally bevelled by 12.5° at the top and bottom, so that the units connect seamlessly at the front, angle up to 25° toward each other and can be adjusted at the rear in 1° steps. The result is a cohesive, discreet appearance rather than a visibly clustered multi-box array with gaps and acoustic disruption at the front.
A ground-stacking plate enables stable mounting on subwoofers or, with half-cones screwed on, on 4-point trusses. The mechanism also allows for a down-tilt. When two Convert-412 units are stacked on top of one another, the lower top section – ideally fitted with the 110° horn to cover the near field – can be directed towards the area directly in front of the stack. The upper top section, fitted with the more narrowly focused 70° horn, can be used to direct the sound energy towards the rear.
From a discreet touring look to a unique club statement. Performance that’s a sight to behold.
The protective grille is magnetically attached and additionally secured mechanically, and can be quickly removed. It can also be screwed into place for safety against ball throwing in stadiums and sports venues. With the grille fitted, the Convert-412PS looks like an elegant rental or installation product. Without the grille, it displays the typical look often favoured in EDM and club environments – a design concept that was part of the development from the beginning. The extra-stylish horn mounting frame and the bolted aluminium plates on the base and top can be painted in a custom RAL colour on request and are supplied in red as standard.
The Convert-412PS shares the same width, rubber feet spacing and stacking recesses as the Paveosub-118 and the vertically mounted Paveosub-121. It can be stacked directly onto these subwoofers without the need for an adapter. This results in an extremely stylish and powerful monitoring set for drummers or DJs at large festivals or in clubs.
More performance per truck metre. Designed for performance. Engineered for logistics.
To ensure that the Convert-412PS can be transported in the optional flight case, which measures 60 x 80 cm (half a Euro pallet), the Quick-Lock pins on the front of the flight hardware can be stowed in a kind of parking position, concealed within the handle recesses.
Freedom of planning without compromise. Flexible mounting. Precise alignment. Seamless integration.
A comprehensive range of accessories is available for installations, including a swivelling and tilting wall bracket, a ceiling suspension bracket, a U-bracket, a compact single-fly mechanism, a sturdy rigging frame for stacking multiple units vertically, and a ground stack mechanism.
Built to last for years. Made in Germany. For heavy daily use.
The front grille is coated with an innovative metal alloy, making it seawater-resistant and backed by a ten-year guarantee against rust. This ensures that the Convert-412PS will still look good even after years of use – even when operated near the coast or in demanding rental applications.
As with all Voice-Acoustic loudspeakers, the cabinet is made from sturdy, top-quality birch plywood: CNC-milled, tongue-and-grooved, bolted and glued with waterproof adhesive. The surface is protected by a durable, moisture-resistant black polyurea coating. White loudspeakers and custom colours with a 2K textured finish are available as options. The Convert-412PS, like all Voice-Acoustic loudspeakers, is engineered and manufactured in Dörverden, Germany.
Applications. Where performance, control and sound quality allow for no compromises
• EDM and Goa events
• Club installations
• Stadium installations for sound reinforcement of seating areas under roof structures
• Theatre and auditorium installations
• Exhibition halls
• Top 40 bands and large mobile discos for tent, indoor and open-air events
• Mobile stages, particularly those with low roof load-bearing capacity
• Rock events with high demands for powerful low-midrange
Drive. Full performance with the right amplification
The Convert-412PS is operated in a bi-amping configuration across two channels of a VADAS-12K4D amplifier.
The low-frequency drivers are rated at 4 Ω and the coaxial mid-high-frequency driver at 16 Ω.
Two Convert-412PS units can be connected in a bi-amping configuration to a single VADAS-12K4D.
Presets for use with HDSP amplifiers or the free amplifier channels of the Paveosub-sp subwoofers are not available. The amplifier power is insufficient
Technical Data
Drivers
LF: 4 x 12" neodym woofer with 2,5" Dual-Gap voice coil, water-repellent
MF/HF: 1 x 1,4" coaxial 2-way neodym compression driver with 4" (MF) and 2,5" (HF) voice coil
Frequency range
60 Hz – 20 kHz (- 10 dB)
80 Hz – 19 kHz (+/- 3 dB)
Coverage range (h x v)
70° x 50°, 90° x 50°, 110° x 50° (interchangeable)
Impedance
LF: 4 Ω,
MF/HF: 16 Ω
Powerhandling (AES / Program / Peak)
LF: 2.000 W / 4.000 W / 8.000 W
HF: 110 W / 220 W / 440 W
Sensitivity 1 W/1 m
LF: 110 dB,
MF/HF: 112 dB
Sound pressure at (AES / Program / Peak)
143 dB SLP / 146 dB SPL / 149 dB SPL
Connection
2 x NEUTRIK NL4 IN/OUT, LF: 2+/2-, MF/HF: 1+/1-, (4-pole looped-through)
Finish
Polyurea coating in RAL 9005. Special colours also possible with Warnex textured paint
Dimensions / Weight
927 (H) x 530 (B) x 666 (T) mm / 69,75 kg
Accessoires
1,4“ horn 70° x 50° for Convert-412P
Item no. ET110140975412-9005
1,4“ horn 70° x 50° for Convert-412P in black. Also available in special RAL colours.
1,4“ horn 90° x 50° for Convert-412P
Item no. ET110140995412-9005
1,4“ horn 90° x 50° for Convert-412P in black. Also available in special RAL colours.
1,4“ horn 110° x 50° for Convert-412P
Item no. ET1101409115412-9005
1,4“ horn 110° x 50° for Convert-412P in black. Also available in special RAL colours.
Flightcase heavy-duty for 1 x Convert-412
Item no. 504123001
Heavy-Duty Flightcase for one Convert-412. The loudspeaker can be lifted straight out of the case using a chain hoist for flying operations and returned to the case again. 4x 100mm wheels, 2 of them with brakes, 4 large butterflys, 8 large folding handles. 9 mm Wood with black scratch-resistant surface. Stable 35 x 35 mm edge profile 2.5 mm thick, 5 mm outside radius. Optimal truck dimensions: One case measures half the standard dimensions of a Euro pallet. Dimensions/Weight: 1155 (H) x 600 (B) x 770 mm (T) / 48,8 kg.
2-In-1 Rolldolly for 1 x Convert-412
Item no. 504124000
The roll dolly, designed to match the contours of the Convert-412’s housing and featuring a 2-in-1 function, enables compact transport and significantly reduces weight compared to a flight case.
A special feature is the quick-release casters: They are not conventionally screwed to the base plate, but are mounted on separate wheel carrier plates and snapped into place and secured without tools via a spring steel latch. This allows the wheels to be removed in just a few seconds.
The real highlight: The base plate of the roll dolly is structurally identical to the ground-stacking/truss mechanism of the Convert-412. Once the casters are removed, the transport dolly instantly transforms into a fully functional mounting plate for setting up a ground stack.
With additional M10 half-cones, the same plate can also be mounted as a truss adapter on F33 or F34 trusses with a 29 cm flange width.
Transport Cover for 1 x Convert-412 on a rolldolly
Item no. 504121000
Transport cover for one Convert-412 on a rolldolly, made of sturdy Cordura fabric with padding. All handles have been cut out.
Transport lid for the Convert-412
Item no. 504125000
Transport lid for the Convert-412. It is mounted over the transport cover. This creates a flat, stable surface on top where additional equipment can be stacked during loading.
Groundstacking/Truss-Adapter for Convert-412
Item no. 404125000-9005
Ground-stacking/truss adapter for the Convert-412. With additional M10 half-cones, the adapter can be mounted directly onto F33 or F34 trusses with a width of 29 cm.
An M20 × 30 mm screw is included of delivery for secure mounting on subwoofers with an M20 flange.
In addition, the adapter plate features integrated cut-outs for securing and lashing with straps up to 50 mm wide.
Using the rigging mechanism integrated into the rear of the loudspeaker enclosure, the Convert-412 can be connected to the adapter plate and precisely adjusted to the listening area. The loudspeaker can be tilted both downwards and upwards, allowing for precise control of the vertical positioning. 695 (H) x 530 (B) x 40 (T), 12,9 kg.
Carrying bag for 1 x Convert-412 Groundstacking/Truss-mechanics
Item no. 504122002
Carry bag for a Convert-412 ground-stacking/truss adapter, made from sturdy Cordura fabric with padding.
Rigging Frame for Convert-412
Item no. 404122000-9005
Rigging frame designed for flying up to six Convert-412 units in a cluster. The frame features an integrated mounting plate for the optionally available LAP-TEQ Clinometer, which allows the frame tilt of the flown system to be precisely measured and controlled.
Flightcase Heavy-Duty for 2 x Rigging Frame from Convert-412
Item no. 504123002
Heavy-Duty Flightcase for two rigging frames from the Convert-412. 4 x 100 mm wheels, 2 of them with brakes, 4 large butterflys, 8 large folding handles. 9 mm Wood with black scratch-resistant surface. Stable 35 x 35 mm edge profile 2.5 mm thick, 5 mm outside radius.
LAP-TEQ Clinometer
Item no. 987001008
Device for precise positioning of line arrays. The set consists of a display module and two sensor modules with a resolution of 0.01° within an angle of +/- 40°.
Easyfly-mechanics
Item no. 409991001
Tool-free flight-mechanics for clicking and exact alignment of the speaker in the horizontal and vertical axis. Removable recording for example the self-lock clamp included. Available in black, white and RAL custom colors.
Carrying bag for Easyfly-Mechanics
Item no. 409992000
Carrying bag for up to two Easyfly-Mechanics with attached truss clamp plus accessory compartment for e.g. two safetys with single studs.
Self-lock clamp
Item no. 999950731
Loudspeakers can be flown by one person with the self-lock clamp. The clamp hooks directly into the truss and can be easily tightened. Load capacity 250 kg.
U-bracket for Convert-412
Item no. 404121000-9005
Sturdy U-bracket for mounting on trusses, ceilings or on structures. Fixing screws are included. Available in black, white and custom RAL colours.
Tilting and swivelling wall holder heavy-duty
Item no. 404004001
Wall bracket with large wall plate for heavy loudspeakers. Flat design with small distance between wall and speaker. The mounted speaker can be swiveled sideways and tilted up to 20° in 1° steps. Vertical slippage after adjustment of the tilt angle is eliminated by a hole pattern. Easy installation thanks to practical hanging and screwing. Two truss clamps can be mounted for use on vertical trusses. Max. load capacity 80 kg.
Adapter plate Convert-412 for wall holder heavy-duty
Item no. 404124000-9005
Convert-412 adapter plate for the heavy-duty wall mount. The adapter can be screwed into place at various positions on the rear rigging track of the Convert-412. A secondary safety device (safety rope) must be attached to the upper integrated Easyfly track of the Converts-412 using a single stud.