A compact, extremely high-output array module, the versatile T2815 is often used at the bottom of T4805 vertical tangent arrays, and in traditional horizontal arrays. The 15° Hyperboloid Reflective Wavesource
is optimized so that multiple T2815s coherently radiate tangent wavefronts, when used in curved vertical arrays, to deliver consistent front-to-rear SPL across all coverage areas. Twin rear-firing passive resistors provide exceptional, passive midbass directional control.
Optimized for high power vertical tangent arrays. T2815 is nearfield/downfill element.
0.01° precision logarithmic array assembly system is engineered to maintain adequate safety factors when supporting curved vertical arrays.T2815 uses acoustic resistors. Dipolar LF sections produce a cardioid pattern from 70Hz to 250Hz. High power, long excursion neodymium 8” woofers deliver full range output.
Patent-pending Hyperboloid Reflective Wavesources project tangent wavefronts for coherent output and flexible coverage. Patent-pending Directivity Phase Device allows line source coupling throughout the midrange. GEOSoft2 is a proprietary software application that simplifies optimization and deployment of
NEXO GEO vertical arrays.
GEO T2815 PRODUCT FEATURES
Components HF: 1 x 3” voice coil, 1.4” throat neodymium 16Ω driver on a hyperboloid reflective wavesource.
MF/LF (front-firing): 2x 8” (20cm) neodymium hi-flux 16Ω drivers in series.
LF (rear-firing). 2x passive acoustic resistors
Height x Width x Depth 249 x 903 x 537mm (9 13/16” x 35 1/2” x 21 1/8”) including array assembly system
Shape 15° Trapezoid
Weight 29kg(63.9lbs) net, including array assembly system
Connectors 1x AMPHENOL 6-pole EP6 socket In; 1x AMPHENOL AP6 6-pole connector Through.
Construction Baltic birch ply finish with structured black coating for the main structure.
Metal box for the rear section, with dark grey coating.
Front Finish Injected polyurethane flange, with metallic grey coating.
Flying Points Integral flying system. Intercabinet angle adjustments from 6.3° to 15° in logarithmic steps. The degree sequence is (6.3°/8°/10°/12.5°/15°).
SYSTEM SPECIFICATIONS GEO T2815 with NX242 TDcontroller
Frequency response [a] 85Hz – 19Hz ±3dB
Usable range @-6dB [a] 77Hz – 20kHz
Sensitivity 1W @ 1m [b] 107dB SPL nominal (105dB SPL wideband)
Peak SPL @ 1m [b] Configuration dependent (d)
Dispersion [c] Vertical plane. Configuration dependent [d]. 120°Low Frequency: Cardioid
Crossover frequency MF/LF – HF (front): 1.3kHz active.
Nominal impedance HF: 16Ω; MF/LF front: 32Ω.
Recommended amplifiers HF: 3000Watts into ~3Ω (6 cabinets parallel per amp channel).
MF/LF front section: 6000Watts into ~6Ω (6 cabinets parallel per bridged mono amp)
Electronic Controller The NX242 Digital TDcontroller presets are precisely matched to the GEO T Series cabinets and include sophisticated protection systems. Using GEO T Series cabinets without properly-connected NX242 Digital TDcontroller will result in poor sound quality and can damage components.
Dispersion Configuration The CDD is configured for 120° in the non-coupling plane.
Array Design Via GEOSoft compiled Mat Lab ® application or EASE/CATT .dII (latest version available at www.nexo-sa.com).
SubBass CD18 Supercardiod SubBass (requires 2x NX242 outputs and two amplifier channels).
Speaker Cables 1(-)/2(+) NC – LF/MF front: 3(-)/4(+) – HF: 5(-)/6(+).
Rigging System Please refer to the GEOT User Manual before any operation.