User guide
CX-A4 INSTALLATION AND OPERATION MANUAL  10 
CAUTION – Installation 
Do not expose the unit to water or moisture 
Do not expose the unit to naked flames. 
Do not block or restrict any air vent 
Do not operate the unit in ambient temperatures above 35
o
C 
CAUTION – Hazardous Live 
15-01-09 V10.0 
Do not touch any part or terminal carrying the hazardous live symbol ( ) 
while power is supplied to the unit as it can result in electric shock. 
Terminals to which the hazardous live symbol refers require installation by qualified personnel 
CAUTION - Mains Fuse 
Replace the mains fuse only with the same type and rating as marked on the rear panel. The 
fuse body size is 20mm x 5mm. 
CAUTION – Servicing 
The unit contains no user serviceable parts. Refer servicing to qualified service personnel. Do 
not perform servicing unless you are qualified to do so. 
Disconnect the power cable from the unit before removing the top and do not make any internal 
adjustments with the unit switched on. 
Only reassemble the unit using bolts/screws identical to the original parts 
Bose
 is a Registered Trademark of The Bose Corporation 
In the interest of continuing improvements cloud electronics limited reserves the right to alter 
specifications without prior notice. 
Cloud Electronics Limited 140 Staniforth Road Sheffield S9 3HF England 
Telephone +44(0) 114 244 7051 Fax +44(0) 114 242 5462 E-mail: Info@cloud.co.uk 










