AD-C800BB and AD-C820 Installation

The AD-C800BB is designed to be pre-installed into the ceiling and wired. The AD-C820 Loudspeaker Baffle assembly is plugged into and secured to the back box at a later time.

AD-C800BB Back Box Installation

The AD-C800BB installation should be done by a licensed installation professional and wiring installed by a licensed electrician in accordance with local building codes.

1.There are 5 wiring ½" & ¾" knockout locations, shown as item a (Figure 16), available on the AD-C800BB back box. Remove the knockout(s) through which the loudspeaker signal wires are to be routed.

2.Secure the AD-C800BB back box using the suspension straps shown as item d (Figure 4), to a structural part of the facility that is able to support ten times the combined weight of the AD-C800BB and the AD-C820 Loudspeaker Baffle assembly (17 lbs. / 7.7 Kg.). Consult local building code requirements.

– Figure 16 –

Note: The minimum wire gauge is 20 AWG, the maximum is 8 AWG.

3.Install a Wire Clamp Fitting into the selected knockout holes. You can substitute the necessary fitting if the facility’s loudspeaker signal wiring is in conduit.

4.Route the facility’s loudspeaker signal wires through the knockout hole(s)/Wire Clamp Fittings and to the ceramic terminal block. Make sure there is enough wire to strip, tin, and connect the wires. Do not secure the Wire Clamp Fitting at this time.

5.Strip the ends of the wires to approximately 0.4"(10 mm), and tin the ends of the wires.

6.There are two wires already connected to the terminal block; the striped wire is negative, the solid color wire is positive (Figure 17). Do not remove these wires, but ensure the locking screws are tight. Connect and secure the facility’s loudspeaker signal wiring to the ceramic terminal block using a #1 Phillips head screwdriver.

Note: For daisy-chaining loudspeakers, insert the extra pair of wires into the same connections as the facility’s loudspeaker signal wires described in these steps.

Note: Typically the striped wire is black/white, the solid is gray.

AD-C1200, AD-C821, AD-C820 specifications

QSC Audio has established itself as a leader in professional audio solutions, and the AD-C820, AD-C821, and AD-C1200 speakers are prime examples of the company's innovative engineering and commitment to quality. These models are designed specifically for high-performance commercial sound applications, such as restaurants, retail spaces, and corporate environments.

The AD-C820 and AD-C821 are part of QSC's AcousticDesign Series, featuring a compact, sleek design that blends seamlessly into any architectural environment. Both models utilize QSC's proprietary Directivity Matched Waveguide technology. This ensures consistent coverage across the listening area, reducing the possibility of dead spots and enhancing audio clarity. The AD-C820 is an 8-inch two-way speaker, while the AD-C821 is a more powerful 8-inch loudspeaker that includes a coaxial design, offering an exceptional audio experience with a wider frequency response and improved tonal balance.

Both speakers are equipped with a unique DMT (Directivity Matched Transition) system, which provides seamless transition between high and low frequencies, significantly improving sound quality during a range of applications. Furthermore, the AD-C821 features a dedicated high-frequency driver that allows for extended high-frequency performance, making it suitable for environments that require more detailed sound reproduction.

On the other hand, the AD-C1200 is a powerful 12-inch ceiling loudspeaker that is perfect for larger spaces. It incorporates a high-output woofer, providing warm and rich bass response. With QSC's specially designed high-frequency driver, the AD-C1200 delivers a clear and detailed audio experience, ensuring that voices and instruments are rendered with precision.

All three models feature an innovative Waveguide design that enhances coverage patterns, ensuring a uniform sound experience regardless of the listener's location. Additionally, these loudspeakers come with a robust enclosure that minimizes ambient noise interference, further enhancing audio fidelity. The integration of rugged components ensures long-lasting performance under various conditions, making them ideal for diverse commercial applications.

In summary, the QSC Audio AD-C820, AD-C821, and AD-C1200 speakers offer a blend of advanced technology, exceptional sound quality, and practical design. Their versatility makes them an excellent choice for anyone looking to achieve high-quality audio in commercial environments, making QSC a trusted name in the professional audio industry.