Electrovision B427BL User manual

B427BL
e-audio Bluetooth 4.0 Stereo
Audio Amplier 4 x 15W
IMPORTANT
Installer and Users please note:
These instructions should be read carefully and left with the user of the product for future reference.
BEFORE USE
You must inspect the product and its power supply for any signs of damage. If the product or
power supply is damaged, DO NOT use it, and contact your supplier immediately.

PRODUCT SAFETY
• This unit can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the unit in a safe way and understand
the hazards involved.
• Children below 8 years shall not play with the unit.
• Do not use this unit in locations where paint, petrol or other ammable liquids or materials are
used or stored.
• To prevent the risk of electric shock or re do not expose the amplier or power supply to
moisture or rain.
• If the amplier or power supply comes into contact with water or other liquids stop using
immediately and have the unit checked by a qualied person before further use.
• Ensure there is adequate ventilation around the unit and the power supply before use
• Do not use the unit for any purpose other than its intended use.
• Check the unit and power supply for damage periodically. If any damage is detected stop using
it immediately and consult your supplier.
• For domestic use only
• There are no user serviceable parts in this product
• Do not leave this product switched on unattended.
• Only use the power supply provided with this unit
• This unit must only be installed by a competent person after taking a site survey to establish
that the structure is suitable and that there are no existing plumbing, gas, electrical services or
other obstructions already in place.
• Disconnect from the mains supply when not in use.
GENERAL SAFETY REQUIREMENTS
Domestic wiring must be tested periodically by a qualied electrician at least once every 10 years
or at every change of occupancy.
For oce and retail premises, and buildings such as village halls, the wiring must be inspected at
least once every 5 years.
It is recommended that all building be tted with smoke alarms (it is mandatory for new
buildings).
BOX CONTENTS
4 x 3m speaker cables
1 x Bluetooth Power Amplier
1 x Power Supply
PLACEMENT
Locate the B427BL on a wall (using the tabs at either end for screws, see diagram on next page),
in a cavity wall or in a ceiling.

Removable
Euro Block
Removable
Euro Block
CONNECTING AMPLIFIER TO SPEAKERS (NOT INCLUDED)
The amplier can be connected to up to 4 speakers (min. 4Ω)
1. Attach the black cable (terminal end) to the terminal marked with a minus symbol (-) on the
speaker.
2. Attach the red cable (terminal end) to the terminal marked with a plus symbol (+) on the
speaker. Repeat for the remaining speakers, if using.
3. Remove the euro block terminal (as shown in diagram below)
4. Connect the cable (bare end) attached to the left speaker, to the two left hand connections in
the euro block (observing the polarity). The black cable should be on the left (labelled as 1 in
the diagram below) and the red cable on the right (labelled as 2 on the diagram below)
5. Connect the cable (bare end) attached to the right speaker, to the two right hand connections
in the euro block (observing the polarity). The red cable should be on the right (labelled as 4 in
the diagram below) and the black cable on the left (labelled as 3 on the diagram below)
Now repeat steps 4 & 5 for the remaining 2 speakers, connecting to the euro block on the
other end of the amplifier;
6. Connect the cable (bare end) attached to the left speaker, to the two left hand connections in
the euro block (observing the polarity). The black cable should be on the left (labelled as 6 in
the diagram below) and the red cable on the right (labelled as 7 on the diagram below)
7. Connect the cable (bare end) attached to the right speaker, to the two right hand connections
in the euro block (observing the polarity). The red cable should be on the right (labelled as 9 in
the diagram below) and the black cable on the left (labelled as 8 on the diagram below)
8. Tighten the screws on the euro block using a suitable screwdriver.
9. Insert the power plug from the power supply into the socket on the amplier (labelled as 5 on
the diagram below)
10. Plug the power supply into a mains outlet and switch on.

DEVICE SYNCING
To connect the amplier to your device;
1. Ensure that the Bluetooth function on your mobile device is set to ‘ON’
2. Ensure that the amplier is plugged in
3. The amplier should now be discoverable by your mobile device (you may need to scan for
new devices)
4. The amplier will show as ‘B427BL’. To sync select the device name and enter the password -
012345
PAT TESTING
When used in a workplace, this product must be safety-tested yearly by a qualied electrician
(PAT Tested) in order to comply with the Electricity at Work Regulations.
If hired out, it must be PAT tested prior to each hire.
We recommend that it is PAT tested regularly when used in a domestic environment.
DISPOSAL AND RECYCLING
You must not dispose of this appliance with domestic household waste.
Most local authorities have specic collection system for appliances and disposal is free of
charge to the end-user.
When replacing an existing appliance with a similar new appliance your retailer may take the old
appliance for disposal.
TECHNICAL SPECIFICATION
Weight (excluding PSU).............................................................................................................. 50g
Dimensions............................................................................................................... 27x41x118mm
Power Supply .................................................................................Input 230V~ / Output 12Vdc 4A
Power ........................................................................................................................ 4 x 15W @ 4Ω
SNR ....................................................................................................................................... ≥90dB
Bluetooth Version ........................................................................................................................ 4.0
SERVICE WARRANTY
Electrovision guarantees the product free from defects in materials and workmanship for a period
of one year.
Should this unit be operated under conditions other than those recommended, at voltages other
than the voltage indicated on the unit, or any attempts made to service or modify the unit , then
the warranty will be rendered void.
The product you buy may sometimes dier slightly from illustrations. This warranty is in addition
to, and does not aect, your statutory rights.
Electrovision Ltd., Lancots Lane, Sutton Oak, St. Helens, Merseyside WA9 3EX
website: www.electrovision.co.uk
CLEANING
• Disconnect from the mains supply before cleaning
• Use a dry, soft cloth only to clean the unit
• Do not use detergents or abrasive cleaners