Tannoy CMS60 ICT–30, CMS60 ICT-4 User Manual

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CMS60 ICT – 30 / CMS60 ICT - 4

User Manual

HOLE CUT- OUT SIZE

305mm (12”)

Tannoy Loudspeakers are manufactured
in Great Britain by :

Tannoy Ltd, Rosehall Industrial Estate, Coatbridge,
Strathclyde, ML5 4TF, SCOTLAND
Telephone: [phone] Fax: [phone]

Tannoy North America Inc, Suite 1. 335 Gage Avenue, Kitchener, Ontario, CANADA, N2M 5E1
Telephone: [phone] Fax: [phone]

Tannoy Nederland BV, Anthonetta Kuijlstraat 19, 3066 GS, Rotterdam THE NETHERLANDS
Telephone: [phone] Fax: [phone]

Issue 1.0 Part No. 6481 0391

GH 10

th

October 2002

CONTENTS

1. Introduction

2. Unpacking

2.1 CMS60 ICT – 30 / CMS60 ICT - 4 – The Product

2.2 The C-ring

2.3 The Tile Bridge and C-ring

2.4 The Plaster ‘Mud’ Ring

3. Installation Instructions

3.1 Hole Cut Out

3.2 Connections

3.3 Installation

3.4 Speaker Assembly with C-ring

3.5 Speaker Assembly with Tile Bridge and C-ring

4. Polarity Checking

5. Amplification and Power Selection (Low Impedance Mode)

6. Voltage and Power Selection (Distributed Line Operation)

7. Equalization

8. Dimensions

9. Performance Data

10. Technical Specifications

11. CMS60 ICT Recommended Service Parts & Accessories

12. Warranty

13. Declaration of Conformity

1. Introduction

The Tannoy CMS60 ICT – 30 / CMS60 ICT - 4 Ceiling Monitor System has been designed for
high-level music and speech reinforcement applications requiring exceptional sonic quality
with uncompromised reliability. The utmost consideration has been given to the installation
procedure to ensure that this product is quick and easy to install.

This versatile design has addressed the two most common component failures experienced in
background music and sound reinforcement system installations, namely the tweeter and the
crossover. Due to the revolutionary design of the ICT™ drive unit, neither of these failures
can occur, assuring you years of trouble free use.
ICT™ or Inductive Coupling Technology utilizes a wireless electromagnetic tweeter that does
not require a crossover and cannot be burned out from heavy or abusive use. The 1”
aluminium high frequency dome has a deep drawn skirt, which sits on the inside of the low
frequency voice coil in the same magnetic gap. The skirt is like a single shorted turn, which is
induced with high frequency information generated by the low frequency voice coil, which is
fed a full bandwidth signal. The ICT™ dome is at the heart of our 6.5” ceiling transducer
which utilises a moulded plastic cone and nitryl rubber surround to further enhance it’s
durability and long term reliability.

The ICT driver is housed in a rugged aluminium ceiling enclosure that has been optimally
tuned to achieve maximum bass response and tonal balance. Also located in this enclosure is
a Tannoy THP30 * multi-tap transformer for distributed-line operation. The transformer
provides high system sensitivity, a wide bandwidth and dynamic range, with very low insertion
loss. The CMS60 ICT – 30 / CMS60 ICT - 4 can also be used in low impedance systems with
this selection being made (along with the transformer tapping options) via a single rotary
switch located on the front baffle for quick and simple commissioning.

*No Transformer with CMS60 ICT – 4, low impedance only.

2. Unpacking

Every Tannoy CMS60 ICT – 30 / CMS60 ICT - 4 product has been carefully tested and
inspected before being packaged and leaving the factory to make sure it reaches you in
perfect condition. However, we would ask you to make sure that no damage has occurred in
transit. In the unlikely event of any damage, would you please notify your dealer immediately
and retain the carton and packing materials. Your dealer may ask you to return the damaged
unit for inspection.

The CMS60 ICT – 30 / CMS60 ICT - 4 is packed in pairs, and any additional optional extras
will be provided in separate packaging. These options include: C Ring, Tile Bridge and Plaster
Ring. The cardboard paint guard should be removed before use.

2.1 CMS60 ICT – 30 / CMS60 ICT - 4 – The Product

2.2 The C-ring (Optional)

2.3 The Tile Bridge and C-ring (Optional)

2.4 The Plaster ‘Mud’ Ring (Optional)

3. Installation Instructions

3.1 Hole Cut Out

The cutout size required is 305mm (12”)

3.2 Connections

The CMS60 ICT – 30 / CMS60 ICT - 4 is provided with a plugable European "Phoenix" type connector,
which is located on the back of the speaker can, under the wiring cover as shown in Figure
3a below. This consists of a plug and socket. The plug can be removed from the socket
(Figure 3b) for wiring.

Figure 3a. Figure 3b.

The plug is wired to the amplifier such that the connections are as follows:

+ - - +

Pin 1 is Positive
Pin 2 is Negative

For additional speakers, pin 3 and 4 are in parallel with pins 1 and 2, where:

Pin 3 is Negative
Pin 4 is Positive

Before connecting the speaker, ensure the wiring cover and cable clamp on the back of the
can are open as shown in Figure 3c. Connect the wired plug into the socket.

Figure 3c

When the plug has been connected, close the wiring cover as shown in Figure 3d, below:
Place the wires in the recess in the cable clamp. Close the cable clamp as shown in Figure

3e and tighten the screw holding the clamp in order to secure the cables in place.

Figure 3d Figure 3e

3.3 Installation

The CMS60 ICT – 30 / CMS60 ICT - 4 is supplied as a complete product, ready for
installation. An optional C Ring, Tile Bridge and Plaster Ring are available if required. The
CMS60 ICT – 30 / CMS60 ICT - 4 has been designed for ease of installation.

To install the speaker, connect the speaker as described in the section 3.2. The speaker has
4 tags (dogs) (Figure f), which hold the speaker in place. Ensure these tags (dogs) are flat against
the can before installing into the ceiling.

Tags for fastening speaker

Screws for tightening tags

Figure f.

Slide the speaker through the 305mm hole, as shown in figure g, and tighten the outer
screws on the front baffle. Tighten these screws until a secure grip is established as shown in

Figure h.

Figure g

Figure h

3.4 Speaker Assembly with C-ring

To spread the weight / pressure of the 4 tags (dogs), an optional C-ring is available for the CMS60
ICT – 30 / CMS60 ICT - 4. To install the speaker in the ceiling, place the C-ring behind the
surface by separating opening of the C-ring and twisting it through the hole. Slide the speaker
assembly through the hole and tighten the tag (dog) screws, until a firm grip is achieved,

3.5 Speaker Assembly with Tile Bridge and C-ring

If the speaker requires additional support, an optional tile bridge is also available for use in
conjunction with the C-Ring. This is assembled as shown in below. The Tile Bridge is
attached to the C-ring, and the tile bridge supports are placed either on the supporting
framework for the false ceiling or inside the framework, depending on the ceiling grid spacing.
Slide the speaker assembly through the hole and tighten the tag (dog) screws, until a firm grip is
achieved.

Figure k

3.6 Speaker Assembly with Plaster ‘Mud’ Ring

An optional plaster (Mud) ring can be used if a conventional ceiling tile is not being used. The
wings on the plaster ring are attached to the building structure using the holes provided. The
plaster is then applied over the bracket.

Important

: Connect a safety cable to the rea

r

of the speaker can.

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 an

y

product. Alternatively, check any laws or bylaws.
Tannoy will not be held responsible for an

y

damages caused by the improper installation o

f

loudspeaker.

4. Polarity Checking

If problems are encountered, inspect the cable wiring in the first instance. It should also be
noted that different amplifier manufacturers utilize 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.

It is most important to check the polarity of the wiring. A simple method of doing this without a

pulsey checker as follows; Connect two wires to the + and - terminals of a small storage
battery that is connected to the + terminal of the battery to the speaker cable leg which you
believe to be the positive speaker terminal, and likewise the - leg of the battery to the negative

speaker terminal.

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 + speaker lead the + terminal on the
amplifier and the - lead to the - terminal on the amplifier. If however, the LF driver moves
backwards, the input connections need to be reversed.

5. Amplification and Power Selection (Low Impedance Mode)

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 3 dB 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 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 cabinets. It is therefore recommended that the same
amplifiers be used throughout.

6. Voltage and Power Selection (Distributed Line Operation)

When using 70.7V or 100V distributed-line systems, the transformer can be tapped at 30W,
15W and 7.5W, with an extra 3.75W tapping for 70.7V line systems. The taps are selected via
a rotary switch, as shown in Figure 6a, and is located on the front of the unit, behind the grille,
Figure 6b.

When the relevant voltage taps have been selected, add the individual power in Watts at
all speakers and select and amplifier with a rating equal to or exceeding the total power in
Watts. All of the transformer primaries should be connected in parallel to the output of this
amplifier. If for example, you select the 7.5-watt transformer tap, it means that at full rated
amplifier output the speaker will receive the full 7.5 watts. If the amplifier gain is reduced each
speaker will receive a proportional amount of power, maintaining the overall system balance.

It is recommended that a generous power safety margin (3dB of headroom) be left so that the
system does not have to operate continuously at its full rated output power.

Figure 6a

Figure 6b

In order to comply with relevant fire safety regulations (i.e. BS 5839:1998), it is required
that in the event of fire, that failure of the circuit to which the loudspeaker is connected
does not occur before evacuation of the building is complete. Suitable measures include:

a) use of terminal blocks (for connection to primary) with a melting point of not less

than 650°C, for example constructed from ceramic materials;
c) use of terminal blocks of a lower melting point but protected with thermal insulation;
d) use of terminal blocks such that, on melting, an open-circuit or a short-circuit does

not occur.

7. Equalization

The CMS60 ICT – 30 / CMS60 ICT - 4 is designed to need no equalization or correction to
overcome system limitations. As a result, it will only need equalization to compensate for
difficult acoustic environments.

Excess equalization can reduce system headroom, and introduce phase distortion resulting in
greater problems than it cures. If equalization is required then it should be applied gently and
smoothly. Violent equalisation will be detrimental to the overall sound quality. If the
loudspeakers were being used consistently at high levels it would be beneficial to introduce a
high-pass filter at 50Hz to protect the loudspeaker from any unnecessary subsonic
frequencies.

8. Dimensions

305mm

12"

9. Performance Data

Unprocessed Anechoic Frequency Response, 1 watt @ 1 metre

Impedance

Beamwidth vs Frequency

0

30

60

90

120

150

180

210

240

270

300

330

360

2

5

0

3

1

5

4

0

0

5

0

0

6

3

0

8

0

0

1

0

00

1

2

50

1

6

00

2

0

00

2

5

00

3

1

50

4

0

00

5

0

00

6

3

00

8

0

00

1

0

000

Frequency (Hz)

Degrees

10. Technical Specifications

Frequency Response (1) +/-3 dB 60Hz - 20kHz
Sensitivity 1W @ 1m (3) 89dB (anechoic)

92dB (half space)

Maximum SPL THP 30 104dB(average)

107dB(peak)

Low Impedance 107dB(average)

110dB(peak)

Power Handling (2) Average 60 watt

Programme 120 watt

Impedance Nominal: 4ohms (on low impedance setting)
Dispersion See Beamwidth Plot
Driver Complement 6.5” (165mm) full range ICT™ Point Source
Crossover 7kHz inductively coupled
Connectors Removable locking connector with screw

input and output terminals.

Safety Features Rear safety tie back ring located at rear top

of enclosure for attachment of a load bearing
safety bond.

Enclosure 12 litres, vented with removable steel back

can

Finish Paintable white
Weight (each) 4.3kg (9.46 lbs)
Dimensions Baffle Diameter 334mm (13⅛”)

Can Height 226mm (8⅞”), 243mm (9 9/16”) incl. Tie

back ring

Cutout size 305mm (12”)

Accessories (Optional) C ring
Tile Bridge
Plaster (‘mud’) ring

Shipping Weight (Pair) 9.8kg (21.56 lbs)
Shipping Dimensions (Pair) 750mm x 330mm x 40mm

(29.53”) x (13”) x (15.75”)

NOTES: (1) Average over stated bandwidth. Measured at 1m on axis.
(2) Long term power handling capacity as defined in EIA standard RS - 426A.
(3) Unweighted pink noise input, measured at 1m in an anechoic chamber

A comprehensive range of measurements including off axis frequency response curves, octave & third
octave polar diagrams, beamwidth plots as well as Ease data can be downloaded from

http://www.tannoy.com/

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
reserves the right to alter without prior notice.Please verify the latest specifications when dealing with
critical applications.

11. CMS60 ICT Recommended Service Parts & Accessories

Part Number Description
7900 0593 Driver Kit – 6.5” ICT
8001 1920 CMS60 C Ring
8000 1910 CMS60 Tile Bridge
8000 1900 CMS60 Plaster Ring

12. Warranty

No maintenance of the CMS60 ICT 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 if 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: [phone] (National)

[phone] (International)

Fax: [phone] (National)

[phone] (International)

e-mail: [e-mail]

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.

13. Declaration of Conformity

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. The apparatus is
designed and constructed such that electromagnetic disturbances
generated do not exceed levels allowing radio and
telecommunications equipment and other apparatus to operate as
intended, and, the apparatus has an adequate level of intrinsic
immunity to electromagnetic disturbance to enable operation as
specified and intended.

Details of the Apparatus: Tannoy Contractor Loudspeaker
Model Number: CMS60 ICT
Associated Technical File: EMC CMS60 ICT
Applicable Standards: EN 50081-1 Emission
EN 50082-1 Immunity
Electrical Safety: EN 60065

Signed:

Position: Engineering Director – Professional
Products
Tannoy Professional

Date: 10/10/2002

For Tannoy Ltd