Tannoy iW Series Quick Start Manual page 10

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iW Series
Positioning
There is a great deal of mounting location flexibility with these models when used in home cinema or multi channel systems. In particular, please note that due to the
unique point source symmetrical dispersion properties of the Tannoy Dual Concentric drive unit, the model iW4 DC and iW 6DS can be mounted in either portrait
(in stud partition wall situations) or landscape positions, where sufficient space exists behind the wall surface.
To achieve the optimum spectral and stereo performance select your mounting location as follows:
Vertical plane
Align the front baffle centres at the intended listening height, usually dictated by the normal seated listening position. For audio use, when positioned in front of the
listener, this will usually be in the height range of 1100 mm to 1700 mm (43" to 67"). For use as home cinema rear effects speakers mounted on the rear walls of the
room, the mounting height range is 1530 mm to 2140 mm (60" to 84").
Horizontal plane
The loudspeakers should be located between 1500 mm to 4500 mm (60" to 180") apart. The room size and shape will dictate the final mounting location,
but generally the listening position, when used as a stereo pair, should be set slightly further away than the speakers are apart.
When used as rear effects speakers in a home cinema system, the ideal viewing point will establish the distance from the rear wall to the listening position.
Avoid positioning the loudspeakers in corners of the room, as this will have a negative effect on performance; maintain a distance of 1 m (39") away from a corner.
Speaker Fitting
Remember .... Measure twice - cut once!
1. Once the mounting location has been selected, use the template provided to mark out the area
of wall material to be cut out. Carefully remove the waste, checking again that there are no
interferences from studs/wire/pipes etc.
2. Install the loudspeaker cabling ensuring that the wiring route is laid clear of all screws and nails that
could potentially damage the cable insulation. Allow sufficient cable length at the speaker end to
allow for an unrestricted connection.
3. It is necessary to block off the void behind the speaker by suitable means (insulation material
or foam) to create an "enclosure" area. This will offer the speaker the required loading volume as
detailed in the specification section of this manual.
4. It is important to provide some acoustic damping between the speaker and the rear wall surface.
We recommend use of a BAF sheet (Bonded Acrylic Fibre). Ensure that all materials used comply
with local fire and building regulations.
5. Strip 8 mm (1/4 inch) of shielding from the end of the speaker cables in preparation for connection to
the terminals on the rear of speaker.
6. Check that the clamping arms are aligned as shown prior to insertion in the wall.
7. Connect the speaker cable observing the correct wiring polarity. The positive terminal (marked +
and coloured red) should receive the positive cable (usually marked with a repeated stamped name,
line or raised rib) and the negative terminal (marked - and coloured black) the negative cable.
8. Insert the baffle into the pre-prepared hole in the wall, ensuring that the speaker wire is located
securely away from the driver, as contact with the driver cone will cause annoying buzzes.
9. Each of the clamp screws can now be tightened (clockwise). Starting at one corner then move to the
opposite corner, tightening sufficiently to check for visual orientation, before proceeding to tighten
the other two corners.
10. Finish off by tightening the middle clamps.
WARNING: Do not over tighten the screws - this is unnecessary to achieve a strong acoustic seal to
the wall, and risks damaging the wall surface
11. Repeat the installation procedure for the other loudspeakers and complete the connection process
to the amplifier.
12. Once again ensure that correct cable polarity is observed.
13. Switch on the amplifier with the volume control at its lowest setting. Select a signal source and
slowly turn up the volume to a low level. Check that bass and treble information comes from both
speakers - if not, switch off the amplifier and recheck the connections.
14. Carefully check the area surrounding the installation and ensure that there are no buzzes or rattles
that could potentially impair enjoyment of the system. If there are, then locate and silence the
causes using cable ties or suitable packing material.
15. Optimum performance will be assisted by the use of silicone sealant to seal gaps between the studs
and the wallboard material. This cavity sealing will help to create a near airtight seal. Do not silicone
the baffle to the wall as the clamping mechanism creates an effective bond.
Fig. 7 Clamps in the pre-install position (iW 4DC shown)
Fig. 8 Clamps in the install position (iW 4DC)
Grille Fitting and Removal
The grille should be carefully fitted to the front baffle aperture, by lining up the edges of the grille carefully with
the baffle. To avoid indentation damage, do not press the centre of the grille; apply even pressure to the corner
as it is pressed firmly into position.
To remove the grille, loop an opened paper clip or similar length of firm wire, through two holes near a corner
and pull gently. The grille is intended to be a tight fit, so insert the wire at each corner in turn, pulling carefully to
avoid distortion of the mesh.
Speaker Loading Volume
There are two simple approaches to achieve a sealed 'enclosure' to provide the correct driver loading area behind
the speaker.
The chosen method will depend on whether the wall is under construction, as in a new building project,
or an existing wall where access is limited.
Option 1
Stud partition walls under construction, with 102 mm by 51 mm (4 by 2 inch) timber at 406 mm (16 inch) centres.
1. Block off the cavity, above and below the intended speaker opening, with the same framing timber.
The distance between these two internal barriers should be as shown in this table:
Model Distance
iw4 DC 410 mm (16")
iW 6DS 550 mm (21.5")
iW 62DS 825 mm (32.5")
iW 62S 825 mm (32.5")
Inside of stud partition
viewed from rear
New timber to
create enclosure
Existing timbers
Back of speaker
Fig 10: Stud partition under contruction – 16" timber centers
Quick Start Guide
Fig. 9 iW 62DS and iW 62S Grille Detail
Inside of stud partition
viewed from rear
New timber to
create enclosure
Existing timbers
Back of speaker
Fig 11: Stud partition under contruction – timber centers over 16"
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