Tannoy CMS50, CMS50T, CMS50 ICT, CMS50T ICT User Manual

CMS50 & CMS50T ICT

USER MANUAL

HOLE CUT-

OUT SIZE 210mm

2

3

CONTENTS

1. Introduction..........................................................................................................4

2. Unpacking............................................................................................................4

3. Assembly Instructions..........................................................................................6

3.1. Cut-Out..........................................................................................................6

3.2. Connections................................................................................................... 6

3.3. Installation .....................................................................................................8

3.4. Speaker assembly with C-ring .....................................................................10

3.5. Speaker assembly with C-Ring and Tile-bridge ...........................................11

3.6. Speaker assembly with Plaster Ring ............................................................ 12

4. Polarity Checking...............................................................................................13

5. Amplification & Power Selection......................................................................... 13

6. Voltage & Power Selection (CMS50T ICT)........................................................ 13

7. Equalisation .......................................................................................................15

8. Dimensions........................................................................................................15

9. Performance Data .............................................................................................. 16

10. Technical Specifications...................................................................................17

11. CMS50 ICT Recommended Service Parts & Accessories................................18

12. Warranty..........................................................................................................18

13. Declaration of Conformity.................................................................................19

4

1. Introduction

Thank You for purchasing Tannoy CMS50 ICT Ceiling Monitor System.
The Tannoy CMS50 ICT Ceiling Monitor System is suited for high level music and

speech reinforcement applications requiring exceptional sonic quality with
uncompromised reliability. Achieving fast, simple and cost effective installation in new
and existing buildings, this versatile design has addressed the two most common
failures of background music and sound reinforcement systems, which are firstly the
tweeter, and secondly the crossover. With the revolutionary design of the ICT™ drive
unit, neither of the above criteria applies, assuring you years of trouble free use.

ICT™ or Inductive Coupling Technology utilises 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 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.

The CMS50T ICT houses a Tannoy THP 30 multi-tap transformer for distributed-line
operation. The transformer provides high system sensitivity, a wide bandwidth and
dynamic range, with very low insertion loss. For critical Applications provision has
been made for the CMS50T ICT to accept the THP 60, a 60W multi-tap transformer.

2. Unpacking

Every Tannoy CMS50 ICT and accessory is carefully inspected before packing. After
unpacking, please inspect your CMS50 ICT to make sure no damage has occurred in
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 you to return the
faulty unit to him for inspection.

The CMS50 ICT 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.

5

2.1. CMS50 ICT Product

2.2. C Ring (optional)

2.3. Tile Bridge and C Ring (optional)

2.4. Plaster Ring (optional)

6

3. Assembly Instructions

3.1. Cut-Out

The cut-out size required is 210mm.

3.2. Connections

The CMS50 ICT is provided with a pluggable European 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

To cable is inserted into the hole on the side of the plug, and the screw is tightened to
secure the cable in the plug. The plug is wired to the amplifier such that the
connections are as follows:

Pin 1 is Positive - connect to Red
Pin 2 is Negative - connect to Black

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

Pin 4 is Negative
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
Once the plug has been connected, close the wiring cover as shown in Figure 3d,

below: