Turbosound QLight TQ-310 Manuel utilisateur

QLIGHT

TQ-300 SERIES

USER MANUAL

TQ-310

TQ-315

Turbosound Ltd.

Star Road, Partridge Green

West Sussex RH13 8RY England

Tel: +44 (0)1403 711447 Fax: +44 (0)1403 710155

web: www.turbosound.com

Issue 1.0 Copyright 2001 Turbosound Ltd.

user manual

QLightseries

CONTENTS

Introduction ................................................................................................................................................. 3

Thanks................................................................................................................................................... 3

Unpacking the TQ series loudspeaker ............................................................................................... 3

Features ....................................................................................................................................................... 4

Product Range Summary........................................................................................................................... 5

TQ-310 passive two way loudspeaker ............................................................................................... 5

TQ-315 bi-amped two-way loudspeaker............................................................................................ 6

Amplifier Considerations .................................................................................................................... 7

Equalisation.......................................................................................................................................... 9

Converging Elliptical Waveguide.................................................................................................... 9

Mounting and Fixing ................................................................................................................................ 10

Rigging Hardware .............................................................................................................................. 10

Permanent Installations..................................................................................................................... 11

Choosing the best location ............................................................................................................... 12

Maintenance – TQ-310.............................................................................................................................. 13

Removal of the Low Frequency Driver ............................................................................................ 13

Removal of the HF unit...................................................................................................................... 13

Maintenance – TQ-315.............................................................................................................................. 14

Removal of the Low Frequency Driver ............................................................................................ 14

Removal of the HF unit...................................................................................................................... 14

Appendix A................................................................................................................................................ 15

Spares and accessories ..................................................................................................................... 15

Appendix B ................................................................................................................................................ 16

Technical Specifications.................................................................................................................... 16

Appendix C: Warranty .............................................................................................................................. 17

TQ-300 series manual

page 2

user manual

QLightseries

INTRODUCTION

Thanks

Thank you for choosing a QLight 300 series loudspeaker product for your application. Please spare

a little time to read the contents of this manual, so that you can obtain the best possible

performance from this unit.

All TURBOSOUND products are carefully engineered for world-class performance and reliability.

If you would like further information about this or any other TURBOSOUND product, please

We look forward to helping you in the near future.

Congratulations, you have just purchased a professional loudspeaker system from the renowned

Turbosound range, designed to give you the best in audio quality and many years of reliable,

trouble free operation. It offers superior audio quality, unsurpassed vocal projection, full technical

documentation including EASE data, and comprehensive rigging and flying hardware options.

Please read through this manual carefully before you attempt to operate the loudspeaker system.

It contains valuable information enabling you to quickly and easily set up and connect the

loudspeakers, important system and set-up checks together with positioning and mounting

instructions.

Unpacking the TQ series loudspeaker

After unpacking the unit please check carefully for damage. If damage is found, please notify the

carrier concerned at once. You, the consignee, must instigate any claim. Please retain all

packaging in case of future re-shipment.

TQ-300 series manual

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QLightseries

FEATURES

• Superb audio quality: carefully designed and matched loudspeaker drive units are used to

give you exceptional performance and many years of reliable, trouble free operation.

• Converging Elliptical Waveguide: eliminates reflections in the horn throat and gives

excellent pattern control.

• Rotatable HF waveguides: high frequency waveguides are designed to accommodate 90°

rotation within the enclosure for horizontal or vertical orientation.

• Ease of use: QLight 300 series products are exceptionally easy to set up and use with the

minimum of technical knowledge required.

• Multiple applications: the non-symmetrical enclosure shape of the TQ-310 and TQ-315 allow

them to be used both in front of house loudspeaker systems as well as for floor monitor

applications.

• Wide dynamic range: all drive units are capable of handling large amounts of amplifier power

in order to achieve high SPL without losing headroom.

• Wide dispersion: QLight 300 series enclosures exhibit wide dispersion patterns which

maximise the sound coverage directed at audience areas.

• Aligned components: low and high frequency components are physically aligned in the

enclosure to ensure perfect time arrival at the listener’s ear.

• Solid construction: all QLight 300 series cabinets are built from high-grade birch plywood,

rebated, screwed and glued together for maximum rigidity and durability.

• Integral rigging points: fitted as standard, enabling use with optional Turbosound flying

hardware, as well as OmniMount and Powerdrive brackets, for all types of fixed installations

and mobile sound reinforcement applications.

• Compact enclosures: the overall dimensions of all QLight 300 series enclosures have been

kept as small as possible to enable portable use as well as fitting easily into permanent

installations.

TQ-300 series manual

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QLightseries

PRODUCT RANGE SUMMARY

TQ-310 passive two way loudspeaker

The TQ-310 is a trapezoidal passive full range two-way loudspeaker enclosure designed for use in

mobile speech and music sound reinforcement applications, including use as a floor monitor, as

well as in a wide range of fixed installations.

The loudspeaker complement consists of a front loaded 10” low frequency driver and a 1” high

frequency compression driver on a 100°H x 60°V HF waveguide, matched with an internal passive

crossover network.

The TQ-310 features Turbosound’s Converging Elliptical Waveguide™ (CEW™) technology. 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 while giving excellent

pattern control. 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-310 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 ether front of house or as a floor monitor.

The TQ-310 includes the provision for fitting optional RT-767 ring-type fittings, two on the top and

one on the rear, enabling it to be suspended and angled in permanent installations as well as in

mobile applications. A pole mount socket is fitted for use with 35mm poles and speaker stands.

M10 rigging points are provided on the sides for horizontal orientation. It is also compatible with

optional Turbosound hardware, as well as Omnimountand Powerdrivebrackets.

The cabinet is constructed from 12mm (1/2”) birch plywood, screwed and glued together for

maximum strength and rigidity, and includes a reticulated foam and steel mesh grille. It is finished

in durable semi-matt black textured paint; TurboBluetextured paint is optionally available. A

rear panel connector plate carries two Neutrik Speakon NL4MP connectors for loop in and loop

out connections to additional enclosures.

The TQ-310 is intended for use with professional quality digital controllers providing at least five

parametric EQ points per output, and output limiting functions.

The TQ-310 is a full range loudspeaker, and used by itself will provide high quality audio for all

speech and many music reproduction applications. In order to extend the effective bass frequency

range of the loudspeaker by a further octave the use of the complementary TQ-115 or TQ-425

subwoofer is recommended.

TQ-300 series manual

page 5

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

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QLightseries

System requirements for QLight 300 series products

The TQ-310 is a passive loudspeaker enclosure, meaning that it requires only one amplifier

channel for correct operation, the frequency splitting between the low frequency driver and the

high frequency driver being accomplished by the internal passive crossover network built into

each enclosure. If subwoofer enclosures are used as part of a bi-amplified system in conjunction

with QLight 300 series 2-way enclosures to extend low frequency response, additional amplifier

channels and external electronic crossovers will be required. The Turbosound LMS-D6 digital

loudspeaker management system is recommended for this purpose, as well as other professional

quality digital controllers.

The TQ-315 is a bi-amplified loudspeaker, meaning that each frequency band requires the use of

one amplifier channel for correct operation. Frequency splitting between the low frequency driver

and the high frequency driver is accomplished by an external electronic crossover. The

Turbosound LMS-D6 digital loudspeaker management system is recommended for this purpose,

as well as other professional quality digital controllers.

If subwoofer enclosures are used as part of a bi-amplified system in conjunction with the TQ-310

or TQ-315 to extend low frequency response, additional amplifier channels and external electronic

crossovers will be required.

Amplifier Considerations

Turbosound speaker enclosures should be driven by high quality power amplifiers designed for

true professional use. Such amplifiers will have balanced inputs, DC and RF fault protection, and

well designed cooling systems for reliability. Turbosound power amplifiers such as the TMC-1250,

TMC-750 and TMC-T1000 are recommended for this purpose.

The program power listed in the loudspeaker’s technical specification is the best guide to the size

of amplifier required for general purpose applications. The amplifier should therefore be capable

of delivering long term broadband power equal to the loudspeaker’s program power rating at the

loudspeaker’s stated nominal impedance. This approach allows sufficient headroom to generate

good dynamic range.

RECOMMENDED AMPLIFIER POWER RATINGS:

The amplifier's rated r.m.s. continuous power output (20Hz – 20kHz, per

channel) should be equal to the program power handling of the

loudspeaker at its nominal impedance.

TQ-300 series manual

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QLightseries

In general, the more powerful the amplifier, the better it will sound, provided that it is not driven

into sustained clipping. It should be understood that overdriving an insufficiently powered

amplifier is more likely to cause loudspeaker damage – the total energy in a heavily clipped signal

is far higher than in an unclipped signal – than operating a more powerful amplifier within its

ratings.

One loudspeaker management system can be used to feed several amplifiers as long as all the

amplifiers are the same (or have the same gain ratings). More than one loudspeaker management

system may be required if the amplifiers are of different gain or type. Please contact your dealer if

you require help in this area.

TQ-300 series manual

page 8

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QLightseries

Equalisation

QLight 300 series enclosures are designed to provide smooth and even frequency response. They

do not need excessive amounts of external equalisation to overcome the sonic deficiencies often

found in many lesser designs.

Should an extended frequency response be required at more than moderate sound pressure

levels, the use of complementary TQ-115 or TQ-425 subwoofer enclosures is strongly

recommended.

In order to compensate for the room acoustics, QLight 300 series enclosures require only minimal

equalisation. As in any system, over-equalisation introduces phase shifts, distortion and a

reduction in headroom, usually causing more problems than it cures. Under most circumstances a

1/3 or 1/2 octave graphic equaliser will generally be adequate, with the fader settings applied

smoothly and as little as possible for the required room compensation. Most rooms will have

resonances that will be excited at particular frequencies needing some

cut

to help tame the sound.

These problems are most pronounced at the lower frequencies where loudspeakers generally

exhibit very little directional control. If you find that the system needs a lot of

boost

at lower

frequencies you may need additional sub-bass units. It is good practice to use as little equalisation

as possible, aiming to cut frequencies rather than adding large amounts of boost.

Converging Elliptical Waveguide

A design feature of the TQ-310 and TQ-315 is the Converging Elliptical Waveguide(CEW),

available in two directivity patterns: 100°x 60°for the TQ-310 and 80°x 50°for the TQ-315. This

gives many user advantages. The comparatively short flare length allows the HF and LF

components to be physically aligned in the cabinet, so ensuring coherent arrival at the listener’s

ear irrespective of distance from the loudspeaker. The elliptical format shapes the wavefront

smoothly, and eliminates reflections in the throat area. Additionally this design does not suffer

from the distortion typical of horns employing diffraction edges.

The waveguides can be removed and rotated through 90º in the cabinet, which allows the

products to be installed in either vertical or horizontal formats while retaining the required

coverage.

TQ-300 series manual

page 9

user manual

QLightseries

MOUNTING AND FIXING

Rigging Hardware

A versatile range of mounting hardware is available that allows enclosures to be used in a variety

of ways, in either mobile applications or permanent installations.

A top hat stand type fitting is mounted in the base of both cabinets for use with 35mm diameter

loudspeaker stands with a load rating of at least 37kgs (82lbs).

An optional 35mm diameter straight pole used between these enclosures enables a minimum

footprint and ensures the correct vertical distance between cabinets.

RT-767 ring type flying points. Rigging points are

provided on the top and rear of the TQ-310 for use

with optional RT-767 rings, enabling it to be rigged

in permanent installations and for mobile

applications. Downward inclination of the enclosure

can be adjusted using the RT-767 rigging point on

the rear of the cabinet.

The TQ-310 can also be installed with M10

shoulder eyebolts in a horizontal orientation

using the M10 internal rigging points on the

side of the cabinet. In this case use the rear

RT-767 flypoint on the rear as a pull-back.

The SB-310 swivel bracket provides a means of wall

mounting the TQ-310 in either a horizontal or vertical

orientation. The swivel bracket is attached to the box

using the integral pole mount fitting at the bottom and

the M8 internal rigging point on the top of the cabinet.

TQ-300 series manual

page 10

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