PowerDual iQ 18B USER MANUAL
Contents
1. 6dB 9dB Figure 8c Figure 8d 10 Flying Convenient flying points are provided on the iQ 18B which will allow the optional flying equipment to be used as shown in Figure 10a In the addition to flying the iQ 18B by itself it can also be flown in conjunction with Tannoy iQ 10 Mid High unit They can also be configured to be flown double Please refer to the following sections for more detailed instructions A pole mount is also provided for flying a mid high cabinet in the air The optional Eyebolt Set can be used when flying an individual iQ 18B The following optional flying kit is available 1 SR18 Rail Kit 2 SR18 10 Rail Kit 3 JK1 Jointing Kit 4 SCB Beam Kit 5 EBS10 Eyebolt Set The easy to use system combines flexibility with the highest levels of safety As with any flying system safety can only be guaranteed when all precautions have been implemented correctly NOTE The installation of this product must be carried out in conformity with local building codes and standards If necessary consult your local safety standards officer before installing any product Alternatively check any laws or bylaws Tannoy will not be held responsible for any damage caused by the improper installation of any flying gear or loudspeaker a Figure 10a 10 10 1 Flying an iQ 18B To fly the iQ 18B by itself the following accessories are required SR12. they can be used to great effect in producing the desired sound quality without the aid of additional amplification Consider Figure 8a in the diagram below here we see a loudspeaker in free field or anechoic conditions We measure its sound pressure level at a distance D and refer to this as our reference level or 0 dB SPL If we now place a large reflective surface i e a wall ceiling or floor next to the loudspeaker Figure 8b the sound that is radiated towards the boundary is reflected As a result the sound pressure level can increase by as much as 3dB effectively doubling the available amplifier power The loudspeaker is radiating its power into half as much space this is known as half space loading For each additional boundary the SPL can increase by 3dB Corner placement or eighth space loading can increase a bass speakers efficiency by up to 9dB This effect is not the same at all frequencies Loudspeakers are only essentially omni directional at low frequencies where the wavelength is large compared to the loudspeaker At high frequencies sound radiates in a more directional manner We can position full range loudspeakers next to a boundary in order to boost the lower frequencies while the highs remain unchanged Coupling or placing bass cabinets together will also increase bass output A mem 0dB Figure 8a Figure 8b
3. A small cross sectional area would increase the cables series resistance inducing power loss and response variations damping factor Connectors should be wired with a minimum of 2 5 sq mm 12 gauge cable This will be perfectly satisfactory under normal conditions In the case of very long cable runs the wire size should exceed this refer to the following table for guidance CONDUCTOR mm RESISTANCE Q INTO 8Q LOAD 2 5 0 14 1 7 4 0 0 09 1 1 0 06 0 35 4 3 0 22 2 7 0 14 1 8 0 69 0 43 0 29 1 38 0 86 0 58 4 Polarity Checking It is most important to check the polarity of the wiring A simple method of doing this is to use a pulse based polarity checker for LF units Connect the speaker leg which you believe to be connected to Pin 1 to the terminal of the amplifier and likewise Pin 2 to the terminal of the amplifier Check the phase as instructed by the polarity checker manufacturer If you have wired it correctly the polarity checker should indicate the LF unit is wired in phase indicating the wiring is correct If however the polarity checker indicates negative phase the input connections must be inverted If problems are encountered inspect the cable wiring in the first instance It should also be noted that different amplifier manufacturers utilise different pin configurations and polarity conventions If you are using amplifiers from more than one manufacturer check the polarity at the amplifiers as well as t
4. 8 Side Rail Kit and SCB Beam Kit The flown system is assembled as shown in Figure 10b The SR18 side rail kit is screwed to the side of the cabinet using the screws provided 1 The SCB Beam Kits are then placed above and below the speaker The Lynch Pin is inserted into the holes of the side rail kit top and bottom and the Pin folded to secure it in place Figure 10c Figure 10c Ev Figure 10b 10 2 Flying Double Q 18B To fly two iQ 18Bs the following accessories are required 2 x SR18 Side Rail Kit 2 x SCB Beam Kit and 1 x JK1 Jointing Kit The flown system is assembled as shown in Figure 10d The SR18 side rail kit is screwed to the side of each cabinet using the screws provided 1 The JK1 Jointing Kit is slotted between two SCB Beam Kits for both the top and bottom 2 The combined SCB Beam Kits are placed above and below the speaker 3 The Lynch Pin is inserted into the holes of the side rail kit top and bottom 4 and the Pin folded to secure it in place Figure 10c page 10 Figure 10d 10 3 Flying an iQ 18B with iQ 10 11 12 To fly the iQ 18B with the iQ 10 Mid High unit with optional trapezoidal cabinet the following accessories are required SR18 10 Side Rail Kit and SCB Beam Kit The flown system is assembled as shown in Figure 10e First the SR18 10 side rail kit is screwed to the side of both the iQ 18B and iQ 10 cabinets using the screws provided 1 The SCB Beam Kits are place
5. Every Tannoy iQ 18B is carefully tested and inspected before packing After unpacking please inspect your iQ 18B for any damage sustained during transit In the unlikely event of any damage would you please notify your dealer immediately and retain your shipping carton as your dealer may ask the faulty unit to be returned for inspection 3 Connectors Cabling The iQ 18B is fitted with two 4 pole Speakon connectors Speakon has the following advantages over EP and XLR type connectors All terminations are solderless making life easier at the time of installation or when field servicing is required Contacts will accept 6 sq mm wire with an outside diameter of up to 15 mm and a current rating of 30 Amps The pins of the two Speakon sockets marked input output on the rear of the speaker are paralleled within the enclosure Tannoy has adopted the following wiring standard for iQ 18B SPEAKON SIGNAL CONNECTOR Pint Negative Should you encounter any problems obtaining Speakon connectors please contact Neutrik or its distributors on the following numbers UK NEUTRIK MARKETING 01983 811 441 USA NEUTRIK USA INC 732 901 9488 For a worldwide list of distributors please contact Neutrik directly on NEUTRIK AG 423 237 2424 Or visit their website on http www neutrik com Cable choice consists mainly of selecting the correct cross sectional area in relation to the cable length and the load impedance
6. PowerDual iQ 18B USER MANUAL CONTENTS Ta Intr duell n u ee 5 2 Unpaid een eines 5 3 CONNeCIOIS Cabling varas te a corsa 5 A Polarity Checking a me na ee ee 6 5 Amplification amp Power Handling 2 ta 6 6 Operation erahnen 6 T FQ ASEAN at Mein ee 7 8 DIMENSIONS seria ee 7 9 PO SILOM MING tt Here ae ee ee 8 WENO A en re Heer als neared Nitra e 9 10 Flying an TO TB aa 10 10 2 Flying Double iQ 18B ad 10 10 3 Flying an iQ 18B with 1G 1G sata 11 10 4 Flying Double iQ 18B and iQ TO a 12 11 P r nmmance Dalat detritos 13 12 Technical Specifications san 14 13 iQ 18B Service Parts and Accessories u u0r240unnsunnnnnnnnnnnnnnnnannnnnnnnnnnnnnnnnnnn 16 A A E RE ne 16 1 Introduction Thank You for purchasing Tannoy PowerDual iQ i8B The iQ 18B is a dedicated sub woofer designed for high definition sound reinforcement at low frequencies It comprises an 18 driver in a horn loaded cabinet giving increased efficiency and improved LF output For optimal performance the iQ 18B has been designed to operate in conjunction with the iQ 10 mid high horn loaded cabinet where the system is controlled by a dedicated loudspeaker management system TDX2 The cabinet is constructed from high quality 18mm birch plywood featuring handles for easier transportation convenient M8 flying points and a pole mount stand socket that serves as a base for locating the iQ 10 mid high speakers in the air 2 Unpacking
7. ccessories Dimensions Weight Shipping Dimensions Shipping Weight NOTES 46 8 227Hz 400 800 watt 8 ohm Average 2 Programme Peak 10ms 400 watt 800 watt 1600 watt 95dB 98dB half space Average Peak 121dB 127dB Nominal 8 0Q Minimum 7 0Q 2 Harmonic 3 Harmonic 1 91 0 59 0 78 1 11 2 Harmonic 3 Harmonic 0 56 0 47 0 37 0 47 1x 18 Active Recommended points 20 180 Hz 24dB octave Linkwitz Riley Gain 5dB Trapezoidal folded horn 18mm birch plywood Textured black grey paint 2 x Speakon NL4MP in out M8 flying inserts SR18 Flying Kit SR1810 Flying Kit SCB Beam Kit 960mm H x 630mm W x 520mm D 37 82 H x 24 82 W x 20 49 D 52 kg 115 Ib 1040mm H x 700mm W x 590mm D 41 H x 27 6 W x 23 2 D 55 kg 121 Ib 1 Average over stated bandwidth Measured at 1m on axis in an anechoic chamber 2 Long term power handling capacity as defined in EIA standard RS 426A 3 Unweighted pink noise input measured at 1m Tannoy operates a policy of continuous research and development The introduction of new materials or manufacturing methods will always equal or exceed the published specifications which Tannoy reserve the right to alter without prior notice Please verify the latest specifications when dealing with critical applications 15 13 iQ 18B Service Parts and Accessories Part Number Description 7900 0954 Dri
8. d above and below the speaker assembly 2 The Lynch Pin is inserted into the holes of the side rail kit top and bottom 3 and the Pin folded to secure it in place Figure 10f Figure 10f Figure 10e 10 4 Flying Double iQ 18B and iQ 10 To fly double combined iQ 18B with the iQ 10 Mid High unit with optional trapezoidal cabinet the following accessories are required 2 x SR18 10 Side Rail Kit 2 x SCB Beam Kit and JK1 Jointing Kit The flown system is assembled as shown in Figure 10g First the SR18 10 side rail kit is screwed to the side of each iQ 18B and iQ 10 cabinet using the screws provided 7 The JK1 Jointing Kit is slotted between two SCB Beam Kits for botht he top and bottom 2 The combined SCB Beam Kits are placed above and below the speaker assemblies 3 The Lynch Pin is inserted into the holes of the side rail kit top and bottom 4 and the Pin folded to secure it in place Figure 10f page 12 Figure 10g 11 Performance Data 13 110 100 83 88 Anechoic Frequency Response with TDX2 Controller Impedance Response Passive 12 Technical Specifications 14 Frequency Response Recommended Amplifier Power Power Handling Sensitivity 1 2 83 volt 1m 20 180Hz Maximum SPL 3 im Impedance Distortion 10 Full Power 100 Hz 250 Hz 1 Full Power 100 Hz 250 Hz Driver Complement Crossover Point Enclosure Finish Connectors Fittings A
9. he loudspeakers 5 Amplification amp Power Handling As with all professional loudspeaker systems the power handling is a function of voice coil thermal capacity Care should be taken to avoid running the amplifier into clip clipping is the end result of overdriving any amplifier Damage to the loudspeaker will be sustained if the amplifier is driven into clip for any extended period of time Headroom of at least 3dB should be allowed When evaluating an amplifier it is important to take into account its behaviour under low impedance load conditions A loudspeaker system is highly reactive and with transient signals it can require more current than the nominal impedance would indicate Generally a higher power amplifier running free of distortion will do less damage to the loudspeaker than a lower power amplifier continually clipping It is also worth remembering that a high powered amplifier running at less than 90 of output power generally sounds a lot better than a lower power amplifier running at 100 An amplifier with insufficient drive capability will not allow the full performance of the loudspeaker to be realised It is important when using different manufacturers amplifiers in a single installation that they have very closely matched gains the variation should be less than 0 5dB This precaution is important to the overall system balance when only a single compressor limiter or active crossover is being used with multiple cabinet
10. oducts through continuous research and development Please confirm current specifications for critical applications with your supplier EASE Data for Tannoy Professional products available on request 17 TANNOY professional Tannoy Limited Professional Division Coatbridge Strathclyde ML5 4TF Scotland Tel 44 0 1236 420199 Fax 44 0 1236 428230 e mail prosales tannoy com Website www tannoy com Tannoy TGI North America Inc 335 Gage Avenue Suite 1 Kitchener Ontario Canada N2M 5E1 Tel 519 745 1158 Fax 519 745 2364 e mail inquiries tgina com Website www tannoy com Tannoy Nederland b v Anthonetta Kuijlstraat 19 3066 GS Rotterdam Tel 010 286 0554 Fax 010 286 0431 e mail info tannoy n Website www tannoy nl Tannoy is a member of the Tye Group of Companies ML 6 March 2001 18 19
11. s it is therefore recommended that the same amplifiers be used throughout 6 Operation 6 For optimal performance the PowerDual iQ 18B has been designed to operate with PowerDual iQ 10 mid high cabinet where overall system control is achieved by utilising the TDX2 system controller The TDX2 has been factory preset to provide the recommended cross over points delays and overall system balance Please refer to the TDX2 manual for operation If you intend using an alternative loudspeaker management system e g BSS Klark Teknik XTA etc please contact your distributor or visit our website www tannoy com for the correct parameter settings or refer to the recommended crossover points in the technical specifications section of this manual 7 Equalisation The iQ 18B loudspeaker is designed to need no equalisation or correction to overcome system limitations As a result it will only need equalisation to compensate for difficult acoustic environments Over equalisation can reduce system headroom and introduce phase distortion resulting in greater problems than cures If equalisation is required then it should be applied gently and smoothly Violent equalisation will be detrimental to the overall sound quality 8 Dimensions 9 Positioning When a bass loudspeaker is used in an environment with boundary surfaces its placement affects its frequency response When such effects are properly understood
12. ver Kit Type 4504 7900 0955 Recone Kit Type 4504 8001 2070 SR 18 Side Rail Kit 8001 2080 SR 18 10 Side Rail Kit 8001 2090 JK1 Jointing Kit 8001 2180 SCB Single Cabinet Beam 8001 2190 EBS10 Eyebolt Set 8000 0727 TDX2 Digital loudspeaker management system 60 250V UK 8000 0728 TDX2 Digital loudspeaker management system 60 250V EUR 8000 0729 TDX2 Digital loudspeaker management system 60 250V USA 14 Warranty 16 No maintenance of the PowerDual iQ 18B loudspeaker is necessary All Tannoy professional loudspeaker products are covered by a 5 year warranty from the date of manufacture subject to the absence of misuse overload or accidental damage Claims will not be considered is the serial number has been altered or removed Work under warranty should only be carried out by a Tannoy Professional dealer or service agent This warranty in no way affects your statutory rights For further information please contact your dealer or distributor in your country If you cannot locate your distributor please contact Customer Services Tannoy Ltd at the address given below Customer Services Tannoy Ltd Coatbridge ML5 4TF Scotland Telephone 01236 420199 National 44 1236 420199 International Fax 01236 428230 National 44 1236 428230 International E Mail service tannoy com Website www tannoy com DO NOT SHIP ANY PRODUCT TO TANNOY WITHOUT PREVIOUS AUTHORISATION Our policy commits us to incorporating improvements to our pr
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