Dynaudio S4-C80 Manual de instalación - Página 8

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4. In-ceiling Speaker Installation

Note: These installation instructions broadly assume that speaker cables

are pre-installed in ceilings and walls.

To install a Studio Series in-ceiling speaker, proceed as described

in the following paragraphs and accompanying diagrams:

•

Having selected the installation position and checked for the

presence of studs (joists), pipe work, ducts or cables, mark

a cut-line on the ceiling using the supplied template. Check

that the diameter of the cut-line is correct: 210 mm (8.25 in)

for the S4-C65 and 260 mm (10.25 in) for the S4-C80.

Use an appropriate tool to cut along the cut-line to create a

cut-out in the ceiling. Trial fit the speaker Installation Frame

in the cut-out to check clearances.

Note: The orientation of the Installation Frame within the cut-out is

inconsequential.

Note: If using a pre-construction ring, follow the instructions in the pre-

construction document.

Note: In order to reduce the possibility of audible ceiling vibration it may

be prudent to apply a bead of adhesive mastic between the ceiling joists

and the drywall (plasterboard) in the vicinity of in-ceiling speakers.

With the ceiling cut-out checked, the Installation Frame can

be installed. Lift the frame into place and while holding it

against the ceiling with one hand use the other hand to turn

the three yellow securing clamps outwards and slide them

down against the inner surface of the drywall (plasterboard).

Note: If speaker cables are not already installed it should be done at

this stage. It is possible that access will be required through the floor

above to route the cables. Use low resistance speaker cable with clear

polarity marking on its insulation. Low resistance is especially important

if the length of cable from amplifier to speaker exceeds 5 m. Your local

Dynaudio retailer or distributor will be able to offer advice on speaker

cable selection if required.

•

Pull the speaker cable through the Installation Frame and

ceiling cut-out. The length of free cable should be sufficient

to allow the Speaker Unit to be held in one hand while

connecting the cable to the Speaker Unit terminals with the

other hand.

The speaker cable can now be connected to the Speaker

Unit. Strip 15 mm insulation from the cable (if necessary),

twist the wire strands and insert the stripped ends into the

speaker spring terminals. Ensure that the positive conductor

is connected to the red speaker terminal and the negative

conductor is connected to the black speaker terminal.

With the Speaker Unit connected to the speaker cable the

unit can be lifted up into the Installation Frame. Turn the

locking tabs on the front surface of the Speaker Unit fully

clockwise (aligned with the lock icons) and insert it into the

Installation Frame. Push gently around each locking tab until

a click is heard. The Speaker Unit will then be secure in the

frame.

Note: Take care that the speaker cable is positioned in such a way that

it will not get trapped as the Speaker Unit is secured into the Installation

Frame and is not touching the Speaker Unit in such a manner that it is

likely to result in audible vibrations.

Note: To remove the Speaker Unit from the Installation Frame turn the

locking tabs 90° counter-clockwise. Take care to support the speaker as

the locking tabs are released.

With the speaker connected and secured into the Installation

Frame, its bass/mid driver orientation and tweeter angle can

be adjusted. In most installations, the orientation and angle

should be adjusted so that the drivers face towards the

listening position. To adjust the bass/mid driver orientation,

grip the tweeter mounting arm and rotate the entire Speaker

Unit as necessary. To adjust the tweeter tilt, grip the tweeter

body and angle it to one of the three positions.

The high frequency tonal balance of Studio Series speakers

can be adjusted to suit different installation environments. A

tweeter level switch located on the Speaker Unit front panel

offers +3 dB, 0 dB and -3 dB options.

Note: The +3 dB tweeter level option may be appropriate if, for

example, carpets, soft furnishings and curtains dominate in the listening

environment. Alternatively the -3 dB option may be more suited to an

environment where hard floors and glass predominate. In more balanced

acoustic environments the 0 dB option is likely to be most appropriate.

•

In-ceiling speaker installation is completed by fitting the

grille. The grille is secured magnetically and requires no

more than placing into position.

Note: Square Studio Series in-ceiling speaker grilles are optionally

available. Magnetic attachment enables square grilles to be rotated as

required to align perfectly with ceiling or wall lines.

Note: If the ceiling is to be painted following speaker installation, the

supplied paint mask must be used to protect the speaker hardware from

paint ingress. Speaker grilles should not be fitted during painting. They

should be painted separately.

Diagram 5 illustrates the in-ceiling speaker installation procedure.