QSC Audio AD-C821 Disconnect Transformer from the AD-C1200 Circuitry, Painting the Grille

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Disconnect Transformer from the AD-C1200 Circuitry

If you are connecting the loudspeaker to a 16 ohm system, you must disconnect the transformer.

1.Unplug the two-pin Euro-style plug (J1) on the PCB (Figure 25).

2.Loosen the two M3 wire securing screws using a #1 Phillips head screwdriver and remove the wires.

3.Secure and insulate all the wires you removed using a tie-wrap or similar device. This is to prevent rattling during loudspeaker operation.

4.Insert the wires from the back box ceramic connector block into the two-pin Euro-style connector and tighten the screws. Negative wire goes to the COM connection which is marked with a black dot.

5.When you install the loudspeaker baffle assembly into the back box, plug this connector into the two-pin header connector (J1) on the PCB.

Note: Transformer settings are also labeled on the bracket for easy reference.

2-Pin Euro-style connector

– Figure 28 –

Painting the Grille

An extra grille cloth is provided for use when the grille is repainted.

1.Paint the grille as desired. Allow to dry.

2.Grille cloth should be removed before painting. The grille cloth will have paint on it which reduces audio performance.

3.Attach the new grille cloth using 3M™ Super 77™ Multipurpose Adhesive per the manufacturer’s instructions

Note: Do NOT paint grille while installed on speaker.

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Contents AD-C Series QSC Audio Products 3-Year Limited Warranty DisclaimerPackage Contents IntroductionFeatures AD-C821 Loudspeaker SystemAD-C820 Loudspeaker Baffle AD-C800BB Back BoxAD-C800 Rail Kit AD-C800SG/RG Loudspeaker GrillesAD-C1200 Loudspeaker Baffle AD-C1200BB Back BoxAD-C1200SG Loudspeaker Grille AD-C821 Installation Options Suspended CeilingAD-C821 Installation Tools and Parts Required for InstallationInstallation Cut Mounting Hole in CeilingInstall Split Ring and Suspended-ceiling Tile Rails Support and Wire the Loudspeaker System AD-C800BB and AD-C820 Installation AD-C800BB Back Box InstallationAD-C820 Installation Set Transformer Tap and Install Grille Mount the AD-C820 or AD-C821 Loudspeaker SystemMagnets for mounting grille 4 places Transformer Tap switch AD-C1200 and AD-C1200BB Installation AD-C1200BB Installation AD-C1200 Installation COM Places Disconnect Transformer from the AD-C1200 Circuitry Painting the GrilleDimensions Ceiling Cutout Dim = 376 mm x 376 mm Specifications Rated for 400 W maxMailing Address Telephone NumbersFacsimile Numbers World Wide Web Mail
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