3 architects’ & engineers’ specifications – Nexo GEO T User Manual
Page 51
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ECHNICAL
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PECIFICATIONS
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7.1.2 GEO T4805 Dimensions
7.1.3 Architects’ & Engineers’ Specifications
The 3-way full range tangent array module shall have four 8 inch 16 Ohm long excursion neodymium hi-
flux cone transducers in series (two front-firing, two rear-firing), and a 1.4 inch exit 16 Ohm neodymium
compression driver on a hyperboloid reflective wavesource. Coverage shall be configuration-dependent
in the vertical plane and 90° in the horizontal plane. The system shall have a nominal sensitivity of
109dB (107dB wideband). When driven by a NEXO NX242 Digital TDcontroller properly connected to
amplification capable of delivering 5200 Watts into a 5 Ohm load (6 cabinets per channel in parallel),
the system shall produce 138dB peak SPL at 1 meter (for a single enclosure: configuration-dependent
when arrayed) with a frequency response of 67 Hz to 19 kHz ±3 dB (60 Hz to 20 kHz ±6 dB). The
system shall have an active crossover with crossover points of 250 Hz and 1.3 kHz. Low frequency
directional control shall be achieved with DSP algorithms. Electrical connections shall be made via one
6 pole AMPHENOL EP6 socket and one 6 pole AMPHENOL EP6 plug. The system shall have a tuned
ported 5° trapezoidal enclosure constructed of 18 ply Baltic birch (midsection) and aluminium (rear
driver compartment), finished in structured black coating and having exterior dimensions no greater
than 286mm H x 903mm W x 627mm D (11 1/4 in H x 35 1/2 in W x 24 5/8 in D): the system shall weigh
52kg (114.6 lbs). Exterior hardware shall include an integral array assembly system with logarithmic
steps and 0.01° precision: interior components shall be protected by an injection-molded polyurethane
Configurable Directivity Device flange. The full range system shall be the NEXO GEO T4805 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.
.
286 mm
286 mm
[11.26"]
[11.26"]
250 mm
250 mm
[9.84"]
[9.84"]
627 mm
627 mm
[24.68"]
[24.68"]
750 mm
750 mm
[29.53"]
[29.53"]
903 mm
903 mm
[35.55"]
[35.55"]