user manual
TFS-780
TFS-780 user manual
Page 5
equipment from different sources may therefore be freely combined without difficulty. This
provides Flashlight system owners with a considerable competitive advantage in servicing
the requirements of international touring productions, and in co-operating with other
Flashlight suppliers within the worldwide network.
The system is supplied as multiples of a unit package comprising 12 enclosures (6 bass and 6
mid-high), a single rack of four dual-channel power amplifiers, two loudspeaker management
system controllers, flying hardware, and all the requisite cables and connectors. Two of
these packages (or 24 bass and 24 mid-highs) will provide a formidable system for distant
audience coverage in large arenas, and can be integrated with Turbosound Floodlight
enclosures for short and medium range coverage. This set of components also forms a
standard building block for the construction of spherical arrays.
The controller functions as an electronic loudspeaker management system, comprising a
24dB per octave crossover, with factory preset limiters matched to the power amplifiers,
digital time-alignment and electronically balanced inputs and outputs. The power amplifiers
are supplied as a set of four in a 19" rack with all necessary wiring and multi-pin connectors.
The loudspeakers are of six types, of compatible dimensions but with differing frequency
ranges, projection capabilities and dispersion patterns:
TFS-780L low frequency enclosure
The TFS-780L low frequency enclosure covers the sub-bass and bass ranges up to 150 Hz. It
contains a single 21" drive unit with a 6" voice coil, loaded with a TurboBass
device. The
TFS-780L combines relatively compact dimensions and low weight with the ability to provide
beneficial low frequency coupling when used in multiples. The enclosure may be ground-
stacked or flown.
TFS-780H mid-high enclosure
The TFS-780H enclosure covers frequencies above 150 Hz and contains three drive units. A
large TurboMid
device containing a very powerful 12" driver covers frequencies from 150Hz
to 1.3kHz. A smaller TurboMid
device containing a specially developed 6½" cone driver
covers the range from 1.3kHz to 8kHz. The remaining frequencies above 8kHz are covered by
a 1” compression driver on a waveguide horn specifically designed for this purpose. All three
drive systems are designed to have a narrow dispersion angle of 25º horizontal x 25º vertical.
This high Q provides the projection necessary for true
long throw applications such as large
arena and outdoor productions.
The TurboBass
and TurboMid
devices are unique to Turbosound and are covered by
principle patents world-wide. They utilise specialised forms of horn loading which provide