user manual
QLight
series
TQ-315 bi-amped two-way loudspeaker
The TQ-315 is a trapezoidal, switchable bi-amped/passive two-way loudspeaker enclosure,
designed for use in mobile speech and music sound reinforcement applications as well as in a
wide range of fixed installations.
The loudspeaker complement consists of a front loaded 15” low frequency driver and a 3”
diaphragm high frequency compression driver on a 80
°
H x 50
°
V HF waveguide. The TQ-315 may
be used either in bi-amped mode, or in fully passive mode by means of a rear panel switch.
The TQ-315 features Turbosound’s Converging Elliptical Waveguide
(CEW
). The comparatively
short flare allows physical alignment of the HF and LF devices, and ensures that the wavefront is
shaped smoothly, eliminating reflections in the throat area. Additionally this design does not
suffer from the distortion typical of horns employing diffraction edges. The waveguide can be
rotated within the enclosure, making it possible to swap the horizontal and vertical coverage
patterns, for example when installing the TQ-315 horizontally.
The quasi-trapezoidal enclosure has been designed with a 15
°
side angle on one side, and with a
15
°
and 45
°
angle on the other. This shape allows the loudspeaker to be used for either front of
house applications or as a floor monitor.
The TQ-315 includes the provision for fitting optional RT-767 ring-type fittings, on the top, bottom
and rear, enabling it to be rigged in permanent installations as well as in mobile applications. A
pole mount socket is fitted for use with 35mm poles and speaker stands. It is also compatible with
Omnimount
300 series and Powerdrive
120 series wall and ceiling brackets. M10 rigging
points are provided on the sides for installing in a horizontal orientation.
The cabinet is constructed from 15mm (5/8”) birch plywood, screwed and glued together for
maximum strength and rigidity, and it is finished as standard in durable semi-matt black textured
paint. TurboBlue
textured paint is optionally available. An acoustically transparent, reticulated
foam and perforated steel mesh grille protects the drive units.
A rear panel connector plate carries two Neutrik Speakon NL4MP connectors for loop in and loop
out connections to additional enclosures, and a recessed toggle switch for bi-amped/passive
mode selection.
The TQ-315 is intended for use with professional quality digital controllers providing two inputs
and four outputs, with at least five parametric EQ points per output, and output limiting functions.
TQ-300 series manual
page 6
