Amina BackboxSW345 User manual

Installation Guide BackboxSW
V1.4 July 2013 345/300/200

Caution: Read before installing this product
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To ensure correct installation, please read this
guide carefully and keep in a safe place for
future reference.
Install this product in a cool, dry, clean place -
away from direct sunlight and heat sources,
vibration, chemical fumes, dust and moisture
(steam).
Do not clean this product with chemical
solvents as this may cause damage to the
finish. Use a clean, dry or damp cloth.
Ensure that all installation mounting surfaces
are able to support the weight of the
BackboxSW with that of your chosen
speaker.
Do not attempt to modify or repair the
product. Contact your distributor or
manufacturer if it is faulty or damaged in any
wa y.
ENVIRONMENTAL:
Please be aware that whilst this product reduces the rearward sound output of the loudspeaker some
vibrational energy may still travel some considerable distance up, down and along the wall or ceiling
structure. It is therefore recommended the product be fitted in conjunction with vibration absorbing
materials to minimise these effects.
WARNING:
No attempt should be made to install this product within existing building structures unless you are certain
that no electric cables, water pipes, gas pipes or supporting joists will be cut through.

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Contents
Packaging / Introduction / Overview
Installation steps 1 + 2
Installation steps 3, 4 + 5
Alignment for feathered skim
Alignment for patch plastering
Alignment for full wet skim
Further details
Warranty, copyright, contact information

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Packaging
Introduction
Overview
Thank you for purchasing the Amina Technologies BackboxSW. This product has been designed for the
installation of Amina Series Invisible Loudspeakers into solid (eg. brick, concrete) walls and ceilings.
Constructed from zintec steel, the BackboxSW is rugged enough to be installed early in the build
process.
Installation is simple however, please follow this guide carefully as it contains important advice on
speaker alignment for plastering and reducing structural energy transference.
CAUTION:
Take care when removing the BackboxSW from the carton.
The packaging for the BackboxSW has been carefully designed to protect the product during transit.
Please retain it in the unlikely event you need to return the product to your dealer or manufacturer.
Please recycle the packaging should you wish to dispose of it.
The BackboxSW outer carton is made up of 80% recycled single wall board.
Rubber grommets
Backbox mounting slots
Speaker mounting tabs
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01
Part Numbers
BackboxSW345 - Evolution Series
BackboxSW300 - iQ Series/ LFieT Series
BackboxSW200 - Evolution “S200” models and AIW750E - HF Panel

01
BackboxSW installation
Create aperture in brickwork / concrete
Check which version of the BackboxSW you
have before following this section.
Create 460mm x 205mm (18.1” x 8.1“)
aperture. (SW200)
Create 460mm x 305mm (18.1” x 12“)
aperture. (SW300)
Create 460mm x 450mm (18.1” x 13.8“)
aperture. (SW345)
Using the combination of an angle grinder
and a jackhammer drill, create a cavity within
the brickwork.
Before installing the BackboxSW you will
need to know the thickness of render that will
be applied to the wall/ceiling prior to the
finish plaster skim.
Minus this thickness from 50mm (2”) to
calculate the minimum cavity depth you will
need to create in order for the BackboxSW
to fit.
01
Create channel for cable
Using an angle grinder or hammer and
chisel, create a channel that runs into the
cavity. This will allow the speaker cable to be
pulled into a suitable position within the
cavity.
We recommend the cable is run in a suitable
conduit to protect it.
Leave enough cable slack to allow
connection to the speaker when it is held
away from the cavity.
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02
Fitting the BackboxSW
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rendered wall
no render
03
BackboxSW installation continued...
Install BackboxSW
Make a small hole in one of the rubber
grommets and pull the speaker cable
through it and into the BackboxSW. There are
four slots in the base of the BackboxSW and
using suitable screws (not supplied), fix the
BackboxSW to the brickwork/concrete within
the cavity. Ensure the front edge of the
BackboxSW aligns flush with the front face of
the surface which will be plaster skimmed.
Shims may be fitted behind the BackboxSW
to achieve a level solid fixing.
It is recommended to add sound absorbing
mineral wool (1” maximum thickness) to the
inside of the BackboxSW and expanding
foam around the sides to prevent resonance.
NB: If there is a layer of render to be applied
or already applied to the brickwork, be sure
to align the front edge of the BackboxSW to
the front edge of the render (as shown in the
lower section of the image)
03
Fixing the speaker to the BackboxSW
Once the speaker has been electrically
connected it can now be fixed to the
BackboxSW.
Remove the backing paper from the 6
adhesive pads on the speaker mounting tabs
and carefully position the speaker onto the
mounting tabs then apply moderate pressure.
There should be an equal perimeter gap
between the BackboxSW and the edge of the
speaker.
Use the flange head screws (supplied with
the BackboxSW) to fix the corners of the
speaker to the four corner mounting tabs.
Testing and plastering
Speaker testing should always be done
before plastering. Please refer to the
loudspeaker’s installation guide for testing
information and for details on how to plaster
your loudspeaker after you have installed the
BackboxSW.
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Mineral Wool
Expanding foam
Top View
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3

This method positions the speaker for a large
area (approx. 1m2(39”)) to be skimmed over
it. This 2mm (5/64”) thick skim is then
feathered outward at the edges and blended
into the existing wall/ceiling finish.
Retrofit / pre-skimmed solid wall
Feathered skim finish
Backbox alignment required for plastering
Use shims between the back of the
BackboxSW and the inside of the cavity to
align the front edge of the BackboxSW with
the front face of the finished wall.
existing render
and plaster skim
shims
For solid walls /ceilings that have already been
plastered and painted.
Alignment and plastering preparation
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Retrofit / pre-skimmed solid wall
Patch plaster finish (alternative to feathered skim)
Backbox alignment required for plastering
Use shims between the back of the
BackboxSW and the inside of the cavity to
align the front edge of the BackboxSW with
the front face of the base render. This should
be no more than 2mm (5/64”) behind the
finished plaster surface.
shims
For solid walls /ceilings that have already been
plastered and painted.
30-50mm
3/16 - 2”
sand down to
create taper
remove existing
plaster from
render
This method positions the speaker to be
patch plastered with a 2mm (5/64”) skim
across the speaker front and blended with
the existing plaster.
Amina recommend British Gypsum Easi-fill®
which allows a smooth accurate finish using
fine sandpaper or a wet sponge.
existing render
existing plaster skim
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New Build / new solid wall
Full wet skim finish
Backbox alignment required for plastering
Use shims between the back of the
BackboxSW and the inside of the cavity to
align the front edge of the BackboxSW with
face of the rendered wall. Render coat
shims
This method allows the speaker to be skim
plastered over during the process of the
entire wall/ceiling being plastered - 2mm
maximum.
For solid walls /ceilings that have already been
rendered but not yet plaster skimmed.
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Further details
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Removal
In the unlikely event of a problem developing with the product, or you simply wish to remove the item
to change its location, please refer to the following guidelines:
Locate the speaker by tapping the wall or ceiling listening for a hollow sound compared to the rest of
the wall/ceiling. Then, with a sharp chisel or decorator’s scraper, carefully chip into the plaster to expose
a small area of the panel surface. To ensure you do not damage the panel, hold the tool at an acute
angle to the wall or ceiling.
Now, holding the scraper almost parallel to the panel surface, work outwards towards the product’s
edge easing the plaster away from the panel. Do not worry if the panel surface receives marks or
indented scratches during this process (it should not, however, have holes entering through to the
unique honeycomb panel). Once the product is plastered back into its original or new location, the new
skim of plaster will cover all these imperfections and the speakers performance will not be unduly
affected.
Clear the surface plaster material from the surrounding area of wall or ceiling to expose all the joint
tape and subsequently remove it. Use a narrow chisel or flat blade screwdriver to remove the plaster
and expose the screws at each corner of the speaker. Using a suitable screwdriver, remove the four
screws and then ease the speaker from the wall or ceiling and disconnect the speaker cable.
Next locate the screws fixing the BackboxSW to the wall/ceiling and carefully remove them. Cut away
any expanding foam from around the sides of the BackboxSW with a sharp knife and pull the
BackboxSW out of the cavity.
If any products become damaged when removing, please return them to Amina Technologies Ltd
where the product can be repaired or replaced.

Copyright information
Warranty information 08
Limited Warranty:
The Amina BackboxSW is designed to last for many years. Correctly installed in accordance with these
instructions, Amina warranties the BackboxSW against defective materials and workmanship for a
period of five years in commercial applications and ten years in residential applications.
At the end of the product’s useful life it should be returned to your supplier, or directly to Amina for
recycling. If you have any questions please contact Amina Technologies Ltd.
* Please refer to our full warranty statement for details, available on our websites, or alternatively
contact us via email on any of the above addresses.
Important Note: This product does not comply to European Construction Products Directive EN 54-24
and therefore must not be used in European voice evacuation systems.
This document is Copyright of Amina Technologies Ltd, 2013
Easi-fill is a registered trademark of British Gypsum Ltd
Amina is a registered trademark of Amina Technologies Ltd
Contact information
Amina Technologies Ltd (UK)
Cirrus House, Glebe Road, Huntingdon
Cambridge, PE29 7DL, UK
T: [phone]
F: [phone]
E: inspir[email protected]o.uk
W: www.amina.co.uk
Corporate Office North America
Amina Technologies NA Ltd
286 Columbus Road East
Oshawa, Ontario L1H7K4
Direct 1-905 655 6411
Toll free 1-866 462 6462
Toll free Fax [phone]
E: [e-mail]
W: www.aminatechnologies.com

Amina Technologies Ltd
Cirrus House, Glebe Road
Huntingdon, Cambs, PE29 7DL England
T: + 44 1480 354390 / F: + 44 1480 356564