Nexo GEO T - Manual (Page 55)

T ECHNICAL S PECIFICATIONS Page 55/67
7.3.2 CD18 dimensions
7.3.3 Architects’ & Engineers’ Specifications
The subbass loudspeaker system shall have two 18 inch long excursion 8 Ohm cone transducers. Its
horizontal and vertical dispersion shall be 120° (cardioid pattern). The system shall have a Q of 4.3
(cardioid mode) over is entire operating frequency range. The system shall have a nominal sensitivity of
105dB/1W/1m. When driven by a NEXO NX242 Digital TDcontroller properly connected to amplification
capable of delivering 1000 to 2000 Watts into a 2x 8 Ohm load (two channels required for directional
VLF), the system shall produce 142 to 145dB peak SPL with a frequency response of 32 Hz to 80 Hz ±3
dB (29 Hz to 180 Hz ±6 dB). The system shall have an active crossover with DSP algorithms for
directional control of sub bass with a crossover point of 80 Hz. Electrical connections shall be made via
two 4 pole NL4MP SPEAKON connectors. The system shall have a tuned dual-ported rectangular
enclosure constructed of 18 ply Baltic birch with low speed port geometry, finished in structured black
coating or dark grey carpeting and having exterior dimensions no greater than 750mm H x 1200mm W x
750mm D (29 1/2 in H x 47 1/4 in W x 29 1/2 in D): the system shall weigh 116kg (256 lbs). Exterior
hardware shall include four front-mounted flytracks, four rear-mounted flytracks and four handles. The
subbass system shall be the NEXO GEO CD18 with a NEXO NX242 Digital TDcontroller. Other
integrated loudspeaker/controller systems shall be acceptable, provided submitted results of testing by
an independent laboratory verify that the above specifications are equalled or exceeded.
1200 mm
[47.24"]
750 mm 750 mm
[29.53"] [29.53"]
750 mm 750 mm
[29.53"] [29.53"]
1200 mm 1200 mm
[47.24"] [47.24"]
750 mm
[29.53"]
750 mm
[29.53"]