B i9 USER MANUAL
CONTENTS 1. Introduction 2. Unpacking 3. Low Impedance or 70.7/100V distributed line operation. 4. Amplification and Power Selection (Low Impedance Mode) 4.1 Connectors & Cabling for Low Impedance Operation 5. Voltage and Power Selection (Distributed Line Operation) 5.1 Connectors and Cabling for Distributed Line Operation 6. Polarity Checking 7. Equalisation 8. Dimensions 9. Performance Data 10. Technical Specifications 11. Rigging & Suspension 11.1 General Safety Advice 11.
1. Introduction The Tannoy i9 installation loudspeaker is designed for use in applications requiring high quality music and speech, where wide and controlled coverage is required. The i9 comprises four 130 mm (5”) low frequency drivers and three 25mm (1”) high frequency drivers. The LF and HF sources are positioned as line source. The coupling effects in the vertical plane result in a narrow and controlled vertical coverage pattern to below 500Hz.
When the number of speakers is large over long cable runs, it is recommended that a distributed (70.7V/100V) system be used. For distributed line, the cable need not have a large cross sectional area as for low impedance, resulting in savings in cable cost. All speakers are placed in parallel with the output of the amplifier, allowing easy installation. Please refer to section 5.2 for installation guidelines. The wattage tappings can be individually adjusted, giving more flexibility within an installation.
Figure 4d: Series Parallel Combination: 8Ω When operating in low impedance mode the rotary switch on the back of the cabinet as shown in Figure 4a, below should be set to ‘8 ohm’ C D B OFF 8ohm A Transformer Tappings 70V 100V 7.5W 15W A B 30W 15W C 60W 30W D 60W Figure 4a 4.1. Connectors & Cabling for Low Impedance Operation The i9 is fitted with 4-pole Neutrik Speakon connectors.
Cable choice consists mainly of selecting the correct cross sectional area in relation to the cable length and the load impedance. 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 mm2 (13 gauge) cable. This will be perfectly satisfactory under normal conditions.
5.1 Connectors and Cabling for Distributed Line Operation Connections are identical to those used in low impedance mode, via the4-pole Neutrik Speakon connectors (see section 4.1): Pin 1+ is Positive Pin 1- is Negative Distributed line systems are much more efficient in power transfer and do not require as large cables as in low impedance mode. This can create significant savings in cable costs. Refer to the following table for guidance in cable length versus power loss.
. 6. Polarity Checking It is most important to check the polarity of the wiring. A simple method of doing this without a pulse based polarity checker for LF units is as follows: Connect two wires to the +ve and -ve terminals of a PP3 battery. Apply the wire that is connected to the +ve terminal of the battery to the speaker cable leg which you believe to be connected to the red speaker terminal and likewise the -ve leg of the battery to the black speaker terminal.
11. Rigging & Suspension 11.1 General Safety Advice ! The Tannoy Professional hardware covered in this guide has been designed to offer quick, simple, cost effective and secure solutions for mounting specifically the Tannoy i9 Professional loudspeaker. This hardware has been designed and manufactured with a high safety load factor for its specific role. To ensure the safest possible use of the hardware covered in this guide, it must be assembled in strict accordance with the instructions specified.
11.2 i9Y - Wall mount Bracket Only the screws, fasteners, and washers specified on figure 1. Should be used to assemble the i9Y bracket Ë(2) Å(1) Fig 2. Fig 1. The Main body of the bracket (1) should be fixed first to the wall in the desired location using all six fixing points. Secure fixings to the building structure are vital; ensure the structure will accept the combined load of the speaker and bracket.
.3 i9 MAB- Multiple Angle Bracket The i9 MAB is designed to provide a number of flexible mounting angles when the i9 is suspended from overhead cables. The i9 MAB is attached to the cabinet as shown with the supplied hex socket screws and washers supplied. Remove the original M10 counter sunk screws from the top and bottom of the i9, position the bracket with the marked hanging holes to the top of the cabinet, then replace these counter sunk screws with the hardware supplied.
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14. Declaration of Conformity B The following apparatus is/are manufactured in the United Kingdom by Tannoy Ltd of Rosehall Industrial estate, Coatbridge, Scotland, ML5 4TF and conform(s) to the protection requirements of the European Electromagnetic Compatibility Standards and Directives relevant to Domestic Electrical Equipment.
B Tannoy Loudspeakers are manufactured in Great Britain by : Tannoy Ltd, Rosehall Industrial Estate, Coatbridge, Strathclyde, ML5 4TF, SCOTLAND Telephone: +44 (0)1236 420199 Fax: +44 (0)1236 428230 Tannoy North America Inc, Suite 1. 335 Gage Avenue, Kitchener, Ontario, CANADA, N2M 5E1 Telephone: (519) 745 1158 Fax: (519) 745 2364 Tannoy Nederland BV, Anthonetta Kuijlstraat 19, 3066 GS, Rotterdam THE NETHERLANDS Telephone: (010) 2860554 Fax: (010) 2860431 Issue 1.0 Part No.
