QSC AD-CI52ST User Manual download pdf (Page 3)

Introduction

Congratulations and thank you for your ceiling loudspeaker purchase. The AD-CI52T

and AD-CI52ST models offer excellent acoustic performance in an easy-to-install and

attractive package. Please review these instructions carefully and follow the recom-

mendations. Consult a licensed installation professional if you are uncertain about any

mounting issues.

Both models feature a 5.25” (133mm) low-frequency (LF) driver and a 1”(25mm) dome

high-frequency (HF) driver. The AD-CI52ST features a shallow enclosure which is larger

in diameter and ported. All models are equipped with an audio transformer suitable for

70V and 100V distributed systems, as well as a tap-selector switch which can bypass

the transformer for 8 ohm applications.

What’s Included

Your ceiling loudspeaker box contains: - the loudspeaker cabinet

- the protective grill assembly

- two support brackets for suspended ceiling installations

- C-ring bracket for suspended ceilings and other ceiling reinforcing applications

- Self-tapping screws(M4.2 X 1.4 X 10mm) for securing the C-ring-to-support brackets

- grill clip used for clipping the plastic grill retaining lines together

- two terminal block connectors for connecting signal and daisy-chaining

Installation Options

The AcousticDesign in-ceiling loudspeakers can be mounted in suspended ceilings, as well as non-suspended types. We recommend an

installation professional be consulted for safety assurance, quality installation, and optimum acoustic performance.

For suspended ceiling applications, the suspended ceiling support brackets must be used with the C-ring bracket. The suspended ceiling

support brackets are designed to accommodate 24” or 600 mm t-channel grid spacing. The brackets do not attach to the t-channel; the

angled “V” bend sits over the t-channel and will catch the t-channel in the event of a tile failure or fall-out.

For other ceiling types, the C-ring bracket can be used to reinforce the mounting surface. If the ceiling is suitably strong, the loud-

speaker can be secured in the cutout hole without additional reinforcement.

Audio connections are made using terminal block type connectors. Two sets of terminals are provided; one set for the signal connection

and another for pass-through (or daisy chain) connection to other loudspeakers on the same distribution circuit.

Two safety features are provided, an enclosure-retaining safety tab and a grill-retaining safety tether. The enclosure tab is a metal tab

on top of the enclosure suitable for securing the loudspeaker to building framing; this provides maximum safety in the event the ceiling

structure fails for any reason. The grill’s safety tether prevents the grill from falling in the event it should vibrate loose.

Hardware Nomenclature

Suspended ceiling viewed from above.

(hardware may not be required for all installations)

Support Brackets

C-ring Bracket

Screws

Existing Suspended

Ceiling “T-Bars”

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QSC AD-CI52ST User Manual Page 3