QLight TQ-315
datasheet
QLIGHT™ SERIES ENGINEERING INFORMATION
The TQ-315 is a trapezoidal, switchable
The TQ-315 can be fitted to special order with
active/passive, full range two-way loudspeaker
optional RT-767 ring-type fittings, two on the
enclosure designed for use in mobile speech and
top and bottom and one on the rear, enabling
music sound reinforcement applications as well as in
it to be rigged in permanent installations as
a wide range of fixed installations.
well as in mobile applications. A pole mount
The loudspeaker complement consists of a
front loaded 15” low frequency driver and a
1.4” 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
TQ-315
socket is fitted for use with 35mm poles and
speaker stands. It is also compatible with
Turbosound wall and ceiling brackets and
Omnimount™ 300 series 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.
from the distortion typical of horns employing
A rear panel connector plate carries two
diffraction edges. The waveguide can be
Neutrik Speakon NL4MP connectors for loop
rotated within the enclosure, making it
in and loop out connections to additional
possible to swap the horizontal and vertical
enclosures, and a recessed toggle switch for
coverage patterns, for example when
bi-amped/passive mode selection.
The TQ-315 must be used with Turbosound
FEATURES
The quasi-trapezoidal enclosure has been
digital Loudspeaker Management Systems
CEW™ technology
designed with a 15° side angle on one side,
providing two inputs and four outputs, with at
and with a 15° and 45° angle on the other,
least five parametric EQ points per output,
allowing it to be used for either front of house
and output limiting functions.
installing the TQ-315 horizontally.
applications or as a floor monitor.
Trapezoidal cabinet
Rotatable HF waveguide
High power handling
Pole mount socket
Omnimount™ compatible
APPLICATIONS
Front of house
Floor monitor
Theatre
Houses of Worship
Corporate / industrial
datasheet
TQ-315
DIMENSIONS (HxWxD)
NET WEIGHT
COMPONENTS
QLIGHT™ SERIES ENGINEERING INFORMATION
691mm x 443mm x 381mm (27.2” x 17.4” x 15”)
32.5 kg (71.5 lbs)
1 x 15” (381mm) LF driver, 1 x 1.4” (35mm) HF driver on a Converging Elliptical Waveguide™
FREQUENCY RESPONSE1
55Hz - 20kHz ±4dB
NOMINAL DISPERSION2
80˚H x 50˚V@-6db points. Rotatable waveguide allows swap of horizontal and vertical pattern
POWER HANDLING
Passive: 680 watts r.m.s., 1360 watts program
Recommended amplifier 1360 watts @ 8 ohms
Bi-amp: LF 600 watts r.m.s., 1200 watts program
HF 80 watts r.m.s., 160 watts program
SENSITIVITY3
MAXIMUM SPL
CROSSOVER
99dB 1 watt @ 1 m
130dB continuous4, 136dB peak5
Configurable for passive/bi-amp operation with integral rear panel switch.
Internal passive crossover at 1k58Hz, 12dB/octave Butterworth
REC. CONTROLLERS
NOMINAL IMPEDANCE
CONSTRUCTION
Turbosound LMS-D24, LMS-D6, LMS-D26, BSS Minidrive FDS344
Passive: 8 ohms, Bi-amp LF: 8 ohms, HF: 8 ohms
15mm (5/8”) birch plywood; rebated, screwed and glued. Finished in black semi-matt textured
paint. Three recessed carrying handles. Integral pole mount socket
GRILLE
CONNECTORS
Powder coated perforated steel with acoustically transparent reticulated foam
(2) Neutrik Speakon NL4MP, wired (passive mode) pin1+: positive, pin1-: negative
(active mode) pin1+: LF positive, pin1-: LF negative, pin2+: HF positive, pin2-: HF negative
FLYING HARDWARE
M8 rigging points for Omnidrive 300 series brackets
M10 rigging points for M10 shoulder eyebolts
OPTIONS
Optional colour: TurboBlue™ textured paint
Optional RT-767 ring type flypoints on the top (2), bottom (2) and back (1)
SPARES AND
ACCESSORIES
page 2
LS-1520
15” (381mm) LF loudspeaker
RC-1520
Recone kit
CD-211
1.4” (35mm) HF compression driver
RD-211
Replacement diaphragm
PX-315
Crossover assembly
MG-315
Replacement grille
RT-767
Ring-type flying points
WB-55A
Wall bracket
CB-55A
Ceiling bracket
PB-55
Wall bracket, pole mount fixing
Notes
1
Measured on axis
2
Average over stated bandwidth
3
Average over stated bandwidth
4
Unweighted diode-clipped pink noise. Measured in a half space environment
5
Verified by subjective listening tests of familiar program material, before the onset of perceived signal
degradation
datasheet
QLIGHT™ SERIES ENGINEERING INFORMATION
TQ-315
FREQUENCY
RESPONSE
130
Fundamental
10% Power
120
Ref.
Sensitivity
1W/1M
100
Distortion %
Sound Pressure Level in dB
110
90
80
1.0%
70
2nd Harmonic
10% Power
3rd Harmonic
10% Power
0.2%
60
20 Hz
50
100
200
500
1 kHz
2
5
10
20
Frequency
300
200
Bi-amped
IMPEDANCE
Ohms
100
16
10
8
4
2
1
20 Hz
50
100
200
500
1 kHz
2
5
10
20
Frequency
300
200
Passive
Ohms
100
16
10
8
4
2
1
20 Hz
50
100
200
500
1 kHz
2
5
10
20
F
Impedance A constant current circuit was used to measure the impedance. Frequency response The frequency response
shown was obtained by feeding a swept sine wave through the system in a full space environment. The position of the
microphone was vertically on-axis at a distance of 2 metres, then scaled to represent 1 metre. 2nd & 3rd Harmonic Distortion
Distortion measurements were obtained using an Audio Precision harmonic distortion analysis system and comply with
AES recommendations for enclosure measurement (AES paper ANSI S4-26-1984). Data Conversion All graphs were digitally
generated using the APEX custom software system, designed to translate data derived from Audio Precision ‘System
One’ test equipment into AutoCAD™. This program enables graphical information to be plotted to a high degree of
accuracy.
NOTES ON
MEASUREMENT
CONDITIONS
page 3
datasheet
QLIGHT™ SERIES ENGINEERING INFORMATION
0°
0°
30
10
90°
40
40
30
40
30
40
0°
0°
24
21
15
0°
0°
12
180°
630 Hz
800 Hz
1 kHz
180°
0°
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21
20
15
20
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10
90°
0°
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15
0°
15
0°
180°
180°
40
12
2.5 kHz
3.15 kHz
0°
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21
20
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20
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4 kHz
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0°
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40
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12
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15
180°
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15
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180°
10 kHz
12.5 kHz
16 kHz
21
0
0°
0°
24
12
10
90°
21
20
40
0
30
10
270°
20
40
10
°
30
0
60
20
0°
page 4
0°
°
10
24
5 kHz
6.3 kHz
8 kHz
30
60
0
°
0°
10
270°
30
0°
0°
°
33
30
33
30
10
90°
1.25 kHz
1.6 kHz
2 kHz
10
12
0
24
0
40
0°
10
270°
30
40
20
30
10
°
20
0
60
0°
°
10
60
0
°
0°
10
270°
30
0°
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°
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30
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30
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90°
315 Hz
400 Hz
500 Hz
10
0°
10
24
0
12
0
0°
10
270°
40
40
30
30
20
20
10
°
10
0
60
0°
°
0
°
0°
10
270°
30
0°
0°
°
33
30
33
30
10
90°
HORIZONTAL THIRD
OCTAVE POLARS
60
TQ-315
datasheet
TQ-315
QLIGHT™ SERIES ENGINEERING INFORMATION
0°
0°
30
10
90°
40
30
40
30
40
0°
0°
30
40
15
0°
0°
12
180°
21
630 Hz
800 Hz
1 kHz
180°
0°
20
0°
24
15
10
0°
30
12
0
21
20
0°
0°
30
10
90°
0°
0°
0°
0°
15
15
40
180°
180°
30
0°
0°
20
12
2.5 kHz
3.15 kHz
4 kHz
21
10
0°
24
12
0
21
20
0°
0°
0°
30
40
0°
12
0°
0°
15
180°
20
15
0°
10
180°
10 kHz
12.5 kHz
16 kHz
21
0
0°
0°
24
12
10
90°
21
20
40
10
30
0
20
0°
10
270°
10
40
0
°
30
10
90°
60
0°
°
20
24
5 kHz
6.3 kHz
8 kHz
30
60
10
°
0°
0
30
0°
0°
°
33
30
33
30
10
270°
40
1.25 kHz
1.6 kHz
2 kHz
10
30
24
0
20
0°
10
270°
10
40
0
°
30
10
90°
60
0°
°
20
60
10
°
0°
0
30
0°
0°
°
33
30
33
30
10
270°
40
315 Hz
400 Hz
500 Hz
10
30
24
0
20
0°
10
270°
10
40
0
°
30
10
90°
60
0°
°
20
60
10
°
0°
0
30
0°
0°
°
33
30
33
30
10
270°
VERTICAL THIRD
OCTAVE POLARS
page 5
datasheet
TQ-315
QLIGHT™ SERIES ENGINEERING INFORMATION
BEAMWIDTH
360
300
Degrees between -6dB points
200
100
90
80
70
60
50
40
30
20
Horizontal
Vertical
10
20 Hz
50
100
200
500
Frequency
page 6
1 kHz
2
5
10
20
datasheet
QLIGHT™ SERIES ENGINEERING INFORMATION
M10 rigging points are provided on each side to allow the enclosure to be flown horizontally
using the rear rigging point as a pull-back. M8 rigging points are provided on the rear of the
TQ-315
INSTALLATION AND
FLYING HARDWARE
cabinet for use with Omnidrive 300 series brackets.
The enclosure can be fitted to special order with optional RT-767 ring type flying points on the
top and rear of the cabinet, enabling it to be rigged in permanent installations and for mobile
applications. The rear rigging point provides a means of adjusting the downward angle of the
cabinet.
WB-55A
wall bracket
CB-55A
ceiling bracket
page 7
datasheet
TQ-315
ARCHITECTURAL
& ENGINEER’S
SPECIFICATIONS
QLIGHT™ SERIES ENGINEERING INFORMATION
The system shall be of the two-way switchable active/passive trapezoidal type consisting of
one 15” (381mm) low frequency loudspeaker and one 1.4” (35mm) high frequency driver on a
rotatable 80° x 50° Converging Elliptical Waveguide™. Performance specifications of a typical
production unit when used with a recommended digital crossover shall meet or exceed the
following: frequency response, measured with swept sine wave input, shall be flat within
±4dB from 55Hz to 20kHz. Nominal dispersion, at –6dB points, shall average 80°H x 50°V.
Nominal impedance shall be passive: 8 ohms; bi-amp LF: 8 ohms, HF: 8 ohms. Power
handling shall be passive: 680 watts r.m.s., 1360 watts program, 1700 watts peak; bi-amp LF:
600 watts r.m.s., 1200 watts program, 1500 watts peak, HF: 80 watts r.m.s., 160 watts
program, 200 watts peak. Sensitivity, measured with 1 watt input at 1 metre distance on axis,
mean averaged over stated bandwidth, shall be 99dB. Maximum SPL (peak) measured with
music program at stated amplifier input shall be 136dB. Dimensions: 691mmH x 443mmW x
381mmD (27.2”H x 17.4”W x 15”D). Weight: 32.5 kg (71.5lbs). The loudspeaker system shall
be the Turbosound TQ-315. No other loudspeaker shall be acceptable unless submitted data
from an independent test laboratory verify that the above combined performance / size
specifications are equalled or exceeded.
DIMENSIONS
148mm
[5.8"]
234mm
[9.2"]
15°
120°
328mm
[12.9"]
150°
196mm
[7.7"]
162.5mm
[6.4"]
TOP
BOTTOM
443mm
[17.4"]
381mm
[15"]
NEUTRIK
334mm
[13.1"]
NEUTRIK
456mm
[18"]
691mm
[27.2"]
175mm
[6.9"]
87mm
[3.4"]
FRONT
TQ-315 Version 1.6 02/06
© Turbosound 2006
SIDE
BACK
TURBOSOUND Ltd Star Road Partridge Green West Sussex RH13 8RY UK
tel: +44 (0) 1403 711447 fax: +44 (0) 1403 710155 • www.turbosound.com
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