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3  Unpacking

Every Tannoy product is carefully inspected before 

shipment. After unpacking, please inspect your 

product to ensure no damage has occurred in 

transit. In the unlikely event of damage, please 

notify your dealer and retain all shipping materials 

as your dealer may require return shipment. 

4  Installation in Suspended Ceilings

An optional pre-install backcan is available for all 

pre-install (PI) models. The backcan is designed 

for pre-installation in newly constructed, non-

suspended ceilings.

NOTE: 

The CMS 603 and 803 models have the 

transformer pre-attached to the inside of 

the backcan; the CMS 503 models have the 

transformer  

pre-attached to the loudspeaker assembly.

1. 

Attach the backcan to a secure fixing point.

This can be done one of three ways:

METHOD 1: 

Fix to a secure point using suitable 

fixings attached to the four fixing holes on the PI 

backcan. (Fig.1)

.

METHOD 2: Fix

 to a secure point using suitable 

fixings and the flexible straps attached to the PI 

backcan. (Fig. 2)

1  Introduction

This Quick Start Guide (QSG) provides the basic 

information required to install and connect the pre-

install (PI) versions of Tannoy CMS Series in-ceiling 

loudspeakers. 

For additional information, including product 

technology, photo identification of product features, 

dimensional drawings, and complete technical 

specifications, please refer to the full CMS Series 

Operation Manual.

For installation of CMS Series blind-mount 

versions, please refer to either the CMS BM Quick 

Start Guide or the full CMS Operation Manual.

2  Safety Notices

Some regional construction codes require the use 

of a secondary method of securing loudspeakers 

in ceiling to provide security of a back-up support. 

A secondary support line should be attached 

from the safety loop on the rear of the product to 

a source point on the ceiling. For PI models, the 

secondary support line should be attached from 

the back of the driver chassis to a source point on 

the ceiling. Please consult the relevant construction 

codes in your region. 

When using a power driver to install the product, it 

is essential to use the correct torque level settings 

to avoid over tightening and damage to the ceiling 

material or clamps. Recommended torque setting: 

1.5 Nm Tannoy will not be held responsible for any 

damages caused by the improper installation of 

these loudspeakers. 

Electrical Safety Notice:

 to comply with the 

standard UL1480, metal-clad flexible conduit (BX) 

is required for connection to the terminal block for 

proper earth grounding. 

SAFETY NOTE:

 In order to comply with the 

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: 

•  Use of terminal blocks (for connection to  

  primary) with a melting point of not less than  

  650°C, for example constructed from ceramic  

 materials; 

 

•  Use of terminal blocks of a lower melting point  

  but protected with thermal insulation;  

•  Use of terminal blocks such that, on melting, an  

  open-circuit or a short-circuit does not occur. 

Fig.1

Fig.2

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