Turbosound TQ-425, TQ-445, TQ-308, TQ-310, TQ-115 User Manual

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QLIGHTSERIES

USER MANUAL

TQ-230

TQ-308

TQ-310

TQ-315

TQ-445

TQ-425

TQ-115

Turbosound Ltd.

Star Road, Partridge Green

West Sussex RH13 8RY United Kingdom

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

Web: www.turbosound.com

Issue 1.2 July 2006

Copyright 2006 Turbosound Ltd.

user manual

 

QLightseries

 

CONTENTS

 

Thanks.................................................................................................................................................

4

Unpacking the QLight™ series loudspeaker.....................................................................................

4

Features ....................................................................................................................................................

5

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

6

TQ-230.................................................................................................................................................

6

TQ-308.................................................................................................................................................

6

TQ-310.................................................................................................................................................

6

TQ-315.................................................................................................................................................

6

TQ-445.................................................................................................................................................

6

TQ-425.................................................................................................................................................

7

TQ-115.................................................................................................................................................

7

System requirements...............................................................................................................................

8

Amplifier considerations....................................................................................................................

8

Equalisation ........................................................................................................................................

9

Dispersion ...........................................................................................................................................

9

Converging Elliptical Waveguide..................................................................................................

10

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

11

Rigging Hardware..............................................................................................................................

11

Summary of rigging options ............................................................................................................

17

Permanent installations ....................................................................................................................

17

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

18

Maintenance ...........................................................................................................................................

19

TQ-230 - Removal of the drivers.......................................................................................................

19

TQ-308/TQ-310/TQ-315 – Removal of the drivers ............................................................................

19

TQ-445 - Removal of the 12”/1” driver.............................................................................................

19

TQ-115 - Removal of the 15” driver..................................................................................................

20

TQ-425 – Removal of the 15” driver(s) .............................................................................................

20

TQ-445 - Removal of the midrange drive unit and horn assembly ................................................

20

Appendix A .............................................................................................................................................

21

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

21

Flying accessories..............................................................................................................................

22

Appendix B: Technical specifications....................................................................................................

24

Appendix B: Technical specifications....................................................................................................

24

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

26

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Limited Warranty ..............................................................................................................................

26

Warranty Coverage...........................................................................................................................

26

Shipping ............................................................................................................................................

26

Incidental and consequential damages ...........................................................................................

27

Limitation of implied warranties......................................................................................................

27

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Introduction

Thanks

Thank you for choosing a QLight™ 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 contact us. Detailed product information is available on our web site at www.turbosound.com

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 QLight™ 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.

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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.

Ease of use: QLight™ series products are exceptionally easy to set up and use with the minimum of technical knowledge required.

Multi-way designs: the exclusive use of cone transducers in the mid frequency bands guarantees seamless crossover regions, as well as greater power handling, lower distortion and less mechanical stress.

Custom-designed drive units: a special 12”/1” co-axial driver was developed for the TQ-445 which allows this three-way enclosure to exceed the performance of equivalentsized traditional two-way designs.

Wide dynamic range: all drive units are capable of handling large amounts of amplifier power in order to achieve high SPL without sacrificing headroom.

Controlled dispersion: QLight™ series mid/high frequency enclosures feature controlled dispersion patterns which minimise room reflections and focus sound coverage directed at audience areas without overspill.

Aligned components: mid and high frequency components are physically aligned to ensure perfect time arrival at the listener’s ear.

Solid construction: all QLight™ 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 for all types of fixed installations and mobile sound reinforcement applications.

Compact enclosures: the overall dimensions of QLight™ series enclosures have been kept as small as possible to enable portable use as well as fitting easily into permanent installations.

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PRODUCT RANGE SUMMARY

TQ-230

The TQ-230 is a compact passive 2-way loudspeaker with two 5” woofers designed for foreground, background and in-fill music applications as well as a theatre under-balcony loudspeaker. Its wide horizontal dispersion and a rotatable high frequency horn enable horizontal or vertical orientation. Intended for portable use as well as for fixed installations, the TQ-230 is provided with rigging points to enable use with eyebolts, wall and ceiling brackets, swivel brackets and pole brackets.

TQ-308

The TQ-308 is a compact 8” quasi-trapezoidal passive 2-way loudspeaker designed for use with Turbosound digital controllers such as the LMS-D4 or LMS-D6. Its primary application is as a small and unobtrusive speech and music system ideal for corporate rentals or permanent installs such as theatres, bars and small clubs. Its rotatable 100° x 60° HF horn allows considerable flexibility of physical orientation as well as audience coverage options. Flying and mounting options include pole mounts, pole brackets and speaker stands; integral rigging points for use with Turbosound and OmniMount™ wall and ceiling brackets, and swivel brackets.

TQ-310

The TQ-310 is a full range 10” quasi-trapezoidal passive 2-way loudspeaker designed for use in mobile speech and music sound reinforcement applications with LMS-D4 or LMS-D6 digital controllers, including use as a floor monitor. It is also ideal for use in a wide range of fixed installations using various rigging options which include adjustable wall and ceiling brackets, swivel brackets, flying frames and RT-767 ring type fly points.

TQ-315

A switchable bi-amp/passive 15” full range quasi-trapezoidal 2-way loudspeaker that doubles as front-of-house and floor monitor applications when used with Turbosound LMS-D4 or LMS-D6 digital controllers. Its 80° x 55° HF horn pattern is rotatable through 90° to allow a range of coverage options. Fixed installs are catered for by a range of rigging options, including wall and ceiling brackets, flying frames, swivel brackets and RT-767 ring type fly points

TQ-445

The TQ-445 is a compact three-way bi-amped full range enclosure that offers unprecedented levels of audio clarity and definition. It combines a co-axial LF/HF driver with a proprietary 6.5" midrange cone transducer in a vented trapezoidal enclosure, providing focused directivity and considerable vocal projection. The TQ-445 is designed for use with the LMS-D6 digital loudspeaker management system, which provides model-specific crossover, equalisation and limiting functions. In order to extend the effective bass frequency range of the loudspeaker by a further octave the use of the complementary TQ-425 subwoofer is recommended.

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TQ-425

The TQ-425 is a front loaded, double neodymium 15” vented subwoofer designed to combine with QLight™ series enclosures to give a high quality, full range sound reinforcement system ideally suited to all corporate, industrial, theatre and audio visual applications. When used with the LMSD6 digital crossover it will reproduce high sound pressure levels at bass and sub-bass frequencies. The TQ-425 is equipped with a pole mount socket to enable QLight™ series mid-high loudspeakers to be used at an optimum height above the subwoofer.

TQ-115

The TQ-115 is a front loaded, single neodymium 15” vented subwoofer designed to combine with QLight™ series enclosures to give a high quality, full range sound reinforcement system ideally suited to all corporate, industrial, theatre and audio visual applications. When used with the LMSD6 digital crossover it will reproduce high sound pressure levels at bass and sub-bass frequencies. The TQ-115 is equipped with a pole mount socket to enable QLight™ series mid-high loudspeakers to be used at an optimum height above the subwoofer.

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Turbosound TQ-425, TQ-445, TQ-308, TQ-310, TQ-115 User Manual

user manual

QLightseries

SYSTEM REQUIREMENTS

QLight™ series passive loudspeaker enclosures require 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™ series 2-way enclosures to extend low frequency response, additional amplifier channels and external electronic crossovers will be required. The Turbosound LMS-D6 and LMS-4 digital loudspeaker management systems are recommended for this purpose, as well as other professional quality digital controllers.

Bi-amplified loudspeaker enclosures require the use of one amplifier channel per frequency band for correct operation. Frequency splitting between the low frequency driver, and the mid and high frequency section drivers is accomplished by an external electronic crossover; while frequency splitting between the mid frequency driver and the high frequency driver in 3-way models (TQ445) is handled by an internal passive crossover.

Dedicated subwoofer enclosures require an additional amplifier channel when used as part of an extended frequency system. Frequency splitting between it and a QLight™ series mid-high enclosure is accomplished by an external crossover. Turbosound digital loudspeaker management systems are recommended for this purpose.

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 T-45 and T- 25 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.

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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.

Equalisation

QLight™ 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 Turbosound subwoofer enclosures is strongly recommended.

In order to compensate for the room acoustics, Qlight™ 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.

Dispersion

Qlight™ series loudspeakers fall broadly into two categories of dispersion pattern: wide and medium. While a wide horizontal coverage pattern of approximately 80° to 100° is appropriate for a majority of small to medium venues, one of the design features of the TQ-445 is a tightly controlled 60º horizontal by 40º vertical dispersion pattern at mid and high frequencies. This gives many user advantages and eases placement decisions, being essentially a point and shoot system. The more focused directivity results in greater projection capabilities, making the TQ-445 very suitable for theatre and small auditorium applications. Remember that a 60º horizontal polar pattern equals an angle of 30º either side of the centre line at which the sound pressure level is

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