Tannoy I15 Manuel utilisateur

i15

USER MANUAL

CONTENTS

1. Introduction

2. Unpacking

3. Connectors/Cabling

4. Polarity Checking

5. Amplification & Power Handling

6. Crossovers

7. Equalisation

8. Dimensions

9. Rigging

10. Performance Data

11. Technical Specifications

12. i15 Recommended Service Parts & Accessories

13. Warranty

14. Wall Mounting Bracket - Assembly Instructions

15. Declaration of Conformity

1. Introduction

The Tannoy i15 professional loudspeaker has been designed for a wide variety of

sound reinforcement applications requiring extended frequency response from a

compact system, capable of delivering high sound pressure levels with extremely low

distortion, resulting in outstanding clarity, definition and detail.

The i15 comprises one 15 inch Dual Concentric driver in which the low frequency

(LF) and high frequency (HF) sources are coincidentally aligned to a point source,

resulting in a smooth uniform frequency response over a wide area of coverage

either as a portable stand alone system or in a multi-cabinet array. The sophisticated

CAD designed waveguide combines 60 degree conical dispersion and excellent

acoustic impedance characteristics. As the system is a point source, clusters and

arrays have minimal lobing. These features are inherent and achieved without the

use of any electronic signal processing

Designed for fixed installations, the i15 is constructed from medium density

fibreboard (MDF), for a high level of acoustic damping. The structural integrity of the

enclosure is further enhanced by internal steel braces which double as the flying

points accepting M8 eyebolts, strategically placed to distribute the weight of the

enclosure evenly.

For applications requiring extended low frequency enhancement, a range of Tannoy

sub-bass systems are available and can be used in conjunction with the i15.

2. Unpacking

Every Tannoy i15 is carefully inspected before packing. After unpacking your

loudspeaker, please inspect for any exterior physical damage, and save the carton

and any relevant packaging materials in case the loudspeaker again requires packing

and shipping. In the event that damage has been sustained in transit notify your

dealer immediately.

3. Connectors/Cabling

The i15 is fitted with two 4-pole Speakonconnectors. Speakon has the following

advantages over EP and XLR type connectors: all terminations are solderless, this

makes 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 15mm and a

current rating of 30 Amps.

The pins of the Speakon sockets identified as input/output on the rear of the input

panel are paralleled within the enclosure.

Tannoy have adopted the following wiring standard for the i15 :-

Pin 1+ is Positive

Pin 1- is Negative

Should you encounter any problems obtaining Speakon connectors, please contact

Neutrik or its distributors directly on the following numbers:-

UK: NEUTRIK MARKETING: 0171 792 8188

USA: NEUTRIK USA INC.: (201) 901 9488

For a world wide list of distributors, please contact Neutrik directly:-

NEUTRIK AG: +41 7529666

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 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:-

CABLE RUN

(m) C.S.A. OF EACH

CONDUCTOR (mm) CABLE

RESISTANCE ΩΩ % POWER LOSS

INTO 8ΩΩ LOAD % POWER LOSS

INTO 4ΩΩ LOAD

10 2.5

4.0

6.0

0.14

0.09

0.06

1.7

1.1

0.73

3.5

2.2

1.5

25 2.5

4.0

6.0

0.35

0.22

0.14

4.3

2.7

1.8

8.6

5.4

3.6

50 2.5

4.0

6.0

0.69

0.43

0.29

8.6

5.4

3.6

17.0

11.0

7.2

100 2.5

4.0

6.0

1.38

0.86

0.58

17.0

11.0

7.2

35.0

22.0

14.0

4. Polarity Checking

It is most important to check the polarity of the wiring before the speaker system is

used. 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 which is connected to the +ve terminal of the battery to the speaker

cable leg which you believe to be connected to pin 1+ of the speaker connector and

likewise the -ve leg of the battery to pin 1-.

If you have wired it correctly the LF drive unit will move forward, indicating the wiring

is correct. All that remains now is to connect the +ve speaker lead to the +ve

terminal on the amplifier and the -ve lead to the -ve terminal on the amplifier. If

however the LF driver moves backwards, the input connections need to 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 the loudspeakers.

5. Amplification & 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 from 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

active crossover is being used with multiple cabinets, it is therefore recommended

that the same amplifiers are used throughout.

6. Crossovers

The i15 is supplied as standard for passive operation via the internal crossover

network. If higher peak outputs are required then the i15 can be used in conjunction

with the Tannoy TX2 controller/crossover which provides high pass filtering and a

degree of parametric equalisation (see performance data section), as well as a fixed

crossover point for use with sub-bass loudspeakers.

7. Equalisation

The i15 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.

Excess equalisation can reduce system headroom, and introduce phase distortion

resulting in greater problems than it 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. Rigging

10. Performance Data

11. Technical Specifications

Frequency Response (1) +/- 3dB 60Hz - 22kHz

37Hz - 22kHz (with Tx2 controller)

Recommended Amplifier Power 250 - 500 watt / 8 ohm

Power Handling(2) Average Programme Peak (10ms)

250 watt 500 watt 1000 watt

Sensitivity (1)

2.83 volt @ 1m 99 dB

Maximum SPL (3) Average Peak

@ 1m 123 dB 129 dB

Impedance Nominal 8.0 ohm

Minimum 6.0 ohm

DI Averaged (PCQ) 9.97, 500 Hz - 16 kHz

@ 1kHz (ISO) 8.5

@ 2kHz (ISO) 9.1

@ 4kHz (ISO) 9

@ 8kHz (ISO) 12.5

@ 16kHz (ISO) 14.15

Q Averaged (PCQ) 11.92, 500 Hz - 16 kHz

@ 1kHz (ISO) 7.1

@ 2kHz (ISO) 8.1

@ 4kHz (ISO) 7.9

@ 8kHz (ISO) 17.8

@ 16kHz (ISO) 26

Distortion 0.1 Full Power 2nd Harmonic 3rd Harmonic

250 Hz 0.18% 0.44%

1000 Hz 1.77% 1.77%

10000 Hz 1.58% 0.11%

0.01 Full Power 2nd Harmonic3rd Harmonic

250 Hz 0.09% 0.09%

1000 Hz 0.50% 0.71%

10000 Hz 0.56% Below measurement limit

Driver Complement 1 x 15” (381mm) Constant Directivity Dual Concentric

Type number 3804

Crossover Point Passive 1.6kHz

3rd order high pass, 2nd order low pass

Halogen HF protection

Enclosure 65 litre vented, MDF

Finish Textured black\grey paint

Connectors 2 x Speakon NL4MPR IN/OUT

Fittings 8 x M8 flying inserts & 1 x M8 pullback point

Dimensions 590mm(H) x 450mm(W) x 420mm(D)

23.2ins(H) x 17.71ins(W) x 16.54ins(D)

Weight 24 Kg (52.8 lbs)

NOTES: (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 in half space conditions.

Tannoy operate 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.

12. i15 Service Parts & Accessories

Part Number Description

7900 0463 Driver Kit - 3804

7900 0464 Recone Kit - 3804

7900 0199 HF Diaphragm Kit

7300 0570 Crossover Kit - 1225

7900 0442 Paint - Touch up Black-Grey

8000 0647 Flying Kit ( 3 x M8 Eyebolts )

8000 0671 Wall Mounting Bracket

8000 0630 TannoyTX2 Active System Controller/2-way Stereo Crossover

13. Warranty

No maintenance of the i15 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.

Rosehall Industrial Estate

Coatbridge

Strathclyde

ML5 4TF

Scotland

Telephone: 01236 420199 (National)

+44 1236 420199 (International)

Fax: 01236 428230 (National)

+44 1236 428230 (International)

e-mail: [email protected]

DO NOT SHIP ANY PRODUCT TO TANNOY WITHOUT PREVIOUS AUTHORISATION

Our policy commits us to incorporating improvements to our products through

continuous research and development. Please confirm current specifications for

critical applications with your supplier.

EASE Data for Tannoy Professional products available on request.

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