Full Range 15" Loudspeaker for Touring and Installation Applications
Product Features
2-way full range loudspeaker for installations and portable applications
550 Watts continuous, 2200 Watts peak power
Ideal for FOH, side fill applications
15" neodymium low frequency transducer with low mass voice coil for improved response
1.4” Compression driver with FEA optimized phase plug with titanium diaphragm and surround
Integral Dendritic Plane Wave Transformer (DPWT) waveguide
Rotatable Exponential Horn provides 80 H x 30 V dispersion
15mm (5/8") birch plywood enclosure with hard wearing semi matte black paint finish
Rugged powder coated perforated steel grille
Integral dual angle 35mm pole mount
Internal rigging points for bracket mount suspension
IP44 dust and water ingress protection
Industry standard 4-pole twist-lock speaker connectors for reliable long life operation

TQ15
The 2-way full range TQ15 is a processed passive 2,200-Watt 15" loudspeaker system ideally suited for a wide range of speech and music sound reinforcement applications. Engineered to work in conjunction with Lab Gruppen powered loudspeaker management systems, the TQ15 provides optimal performance for FOH, sidefill and delay line loudspeakers. 

The TQ15 loudspeaker features an 15" neodymium low frequency driver with a low mass voice coil for improved transient response, and a titanium dome 1.4" neodymium high frequency compression driver mounted onto an 80° horizontal by 30° vertical rotatable exponential horn paired with a dendritic plane wave transformer (DPWT) waveguide. All drivers are matched with an internal passive crossover network in a reflex-loaded enclosure.  The rear panel connector plate carries 2 industry-standard twist-lock speaker connectors for input and link connections to additional enclosures. 

Finished in a highly durable semi matt black paint, the cabinet is constructed from 15 mm (5/8") plywood – and includes a rugged powder coated cloth wrapped perforated steel mesh grille. Multiple threaded rigging points are provided for suspension in any orientation, or for mounting. Optional flying yoke, swivel brackets, (each available separately). The TQ also features a dual 35 mm socket for standard pole mounting – plus integrated handle for convenient transport. 

Custom-Engineered Drivers, Waveguides and Horns
Turbosound is recognised the world over for designing and building some of the most iconic loudspeakers and subwoofers. We take meticulous care and pride in maintaining that reputation by utilising only drivers, waveguides and horns designed and specified by ourselves or to our exacting standards. Often imitated but never bettered our dendritic waveguide uni-phase response has been part of our premium design approach for the last two decades, TQ series has a refined curved exit dendritic married to a new 80° x 30° rotatable horn for accurate dispersion though the entire bandwidth of the high frequency device 

Integration with Lab Gruppen PLM+
With the ever-increasing complexity of modern-day sound systems. Seamless integration with the Lab Gruppen PLM+ is a prerequisite for the TQ series from Turbosound. Our engineers have prepared and meticulously designed a series of presets that will allow the user to achieve the maximum system performance and consistency possible. These can be found within the download section. Future FIR capable platforms from Lab Gruppen will also be supported. 

Acoustic Simulation Tools
EASE GLL files are provided for the EASE Focus 3 Acoustics Simulation Software, which is available for free download. This allows accurate calculation of both acoustic coverage and selection of suspension pick point for tilting and aiming the cabinet at the desired angle. 

Architecture & Engineering Specifications
The speaker shall be of the full range, two-way passive type consisting of one 15" (380 mm) LF neodymium driver with 3” voice coil and one 1.4" (34 mm) HF neodymium compression driver with 3” voice coil. Performance specifications of a typical production unit shall meet or exceed the following: frequency response, measured with swept sine wave input, shall be flat within ±3 dB from 52 Hz to 20 kHz and within -10 dB from 39 Hz to 20 kHz. Nominal dispersion, at -6 dB points, shall average 80° H x 30° V, rotatable. Nominal impedance shall be passive: 8 Ohms. Power handling shall be passive: 550 Watts continuous, 2,200 Watts peak. Sensitivity, measured on axis, mean averaged over the stated bandwidth, shall be 99.5 dB, 1 Watt @ 1 metre. Maximum SPL of 139dB in passive mode (Average Peak level over overlap bandwidth. SPL level at 1 m under free field conditions, using pink noise with crest factor 4, with dedicated pre-set). 

Dimensions: 745 mm high x 415mm wide x 420mm deep (29.33" x 16.34" x 16.54"). Net weight: 23.5 kg (51.8lbs). The loudspeaker system shall be the Turbosound TQ15. No other loudspeaker shall be acceptable unless submitted data from an independent test laboratory verifies that the above combined performance / size specifications are equalled or exceeded. 
 
Specification
Frequency response (-3dB)*
52 Hz – 20 kHz
Frequency response (-10dB)*
39 Hz – 20 kHz
Nominal dispersion 80
80° H x 30° V
Power handling (IEC)
550 W continuous, 2200 W peak
Impedance
8 Ω
Sensitivity (1 W @ 1 m)2
99.5 dB
Maximum SPL3
139 dB peak
IP Rating
IP44
Notes:
1. Average over stated bandwidth. Measured at 1 metre on axis.
2. SPL level at 1 m under free field conditions, using pink noise with crest factor 4, with dedicated pre-set.
3. Peak level at 1 m under half space conditions using pink noise with crest factor 4, with dedicated pre-set.
4. Passive Power handling is combined LF/HF on dedicated preset with (IEC)
5. Ease Data can be downloaded from www.turbosound.com