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

Page 1
B
CMS60 ICT – 30 / CMS60 ICT - 4
User Manual
305mm (12”)
Page 2
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. 6481 0391
GH 10
th
October 2002
Page 3
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
Page 4
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.
Page 5
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)
Page 6
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
Page 7
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.
Page 8
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
Page 9
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
Page 10
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.
Page 11
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.
Page 12
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"
Page 13
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
Page 14
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 (8”), 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.
Page 15
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: 01236 420199 (National)
+44 1236 420199 (International)
Fax: 01236 428230 (National)
+44 1236 428230 (International)
e-mail: prosales@tannoy.com
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.
Page 16
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
Loading...