QSC ADC-152-ST, ADCI-52-T, ADCI-52-ST Brochure

Features

• Widebandwidth,highfidelityperformance—

ensures a full, rich, musical sound with low distortion

• SharesdrivertechnologywithAD-S (surfacemount)loudspeakersforseamlesssonic integration—provides the ability to mix speaker

models within zones for the best possible coverage

• AD-CI52STemploysshallowcan—can be mounted in ceilings and standard architectural walls

• Truehighfidelity,2-waydesign—speakers feature a 1" titanium HF dome tweeter for exceptional sound quality from a ceiling format loudspeaker

AD-CI52ST/CI52T

AcousticDesign™CeilingSpeakers

QSC’s new AcousticDesign “C” Series represents the state-of-the-art for in-ceiling speakers. Delivering exceptional sound quality and value for background music and paging systems, the AD-CI52T and AD-CI52ST are ideal for a wide range of business applications, including hotels, restaurants and pubs, corporate offices, retail spaces, convention centers, recreation facilities, churches, airports, etc.

Featuring an unusually wide frequency range and the ability to deliver higher SPLs, the AcousticDesign Series loudspeakers provide natural sounding lows and transparent highs for a truly musical sound with very low distortion. Coupled with wide and even dispersion, the AD-CI52T and AD-CI52ST deliver outstanding coverage.

The AcousticDesign “C” Series ceiling speakers employ a 5.25" weather-resistant LF transducer incorporating a low-distortion fiberglass cone, a 25 mm voice coil, and a rubber surround. The HF driver is a 1" pure titanium dome tweeter utilizing a neodymium magnet structure. With its larger, ported enclosure, the AD-CI52ST provides greater low-frequency extension and makes an excellent choice for installations requiring shallow install depth—such as cruise ships. By contrast, the AD-CI52T has a smaller “footprint”—enabling this speaker to be less visually intrusive. While both models are weather resistant, the AD-CI52T, by not being a ported enclosure, carries the added benefit of being a fully sealed speaker system.

The AcousticDesign ceiling speakers are packaged with the backcan, support bracket, tile rails, and a grille. For integration with any décor, the trim and grille can be painted. Additionally, these speakers are well suited for use in air handling spaces per UL2043 and UL1480. There is also a seismic tab provided for secondary support.

Specifications AD-CI52ST AD-CI52T

Configuration Shallow can, 2-way, ported enclosure Compact 2-way, sealed enclosure

Transducers

Low-frequency Transducers 5.25" (13 cm) weather resistant, 5.25" (13 cm) weather resistant, low distortion fiberglass cone woofer, low distortion fiberglass cone woofer, 25 mm voice coil, rubber surround 25 mm voice coil, rubber surround

High-frequency Transducer 1" titanium dome tweeter, 1" titanium dome tweeter, neodymium magnet neodymium magnet

Frequency Range

Frequency Response (-6 dB) 63 Hz – 20 kHz 85 Hz – 20 kHz

Useable Frequency Range (-10 dB) 53 Hz – 20 kHz 65 Hz – 20 kHz

Maximum Output

Calculated Peak Output 109 dB SPL 108 dB SPL

Calculated Continuous Output 103 dB SPL 102 dB SPL

Nominal Impedance 8Ω 8Ω

Power Rating

RMS Power Handling3 40 W (100 hours IEC) 40 W (100 hours IEC)

Recommended Max Amp Power 80 W RMS 80 W RMS

Sensitivity 87.5 dB, 2.83V, 1 m, 86 dB, 2.83V, 1 m, flush mounted (2π) flush mounted (2π)

Nominal Coverage 100° conical pattern 90° conical pattern

Bass Loading Ported, tuned to 70 Hz Sealed

Transformers

Type Custom low distortion laminated core, wide bandwidth design

Taps 70/100 V: 30, 15, 7.5, 3.8 W and 8Ω selected by switch

Insertion Loss 0.8 dB, averaged over 50 Hz – 20 kHz bandwidth (30 W tap)

Distortion < .01% THD above 100 Hz, 0.2% at 50 Hz (30 W tap)

Bandwidth 40 Hz – 20 kHz (-1 dB, all taps)

Enclosure

Material Injection molded, high impact polystyrene baffle on a steel enclosure

Finish White (paintable)

Grille Heavy duty powder coated steel

Connectors 4-pin Euro terminals in fire protective sub-chamber

Mounting Hardware Rails and brackets for ceiling tile installation

Weight - Net / Shipping (pair) 8 lb (3.6 kg) / 27 lb (12.2 kg) 7.5 lb. (3.4 kg) / 24 lb (10.9 kg)

Available Accessories ADC-MRS Mud ring bracket ADC-MR Mud ring bracket ADC-NCS New construction bracket ADC-NC New construction bracket

1) All frequency ranges specified refer to measured free field response (half space, 2π).

2) Calculated SPL at 1m, (half space, 2π), speaker operating at rated RMS power with pink noise within specified frequency range

3) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz – 20 kHz band limiting, 6 dB signal crest factor.

AD-CI52ST/CI52T

AD-CI52ST AD-CI52T

Dimensions | Frequency Response

Top

11.45"

290.83 mm

12.63"

320.80 mm

Front

.28"

7.11 mm

.18" with ring

4.572 mm

.24" without ring

6.096 mm

3.75"

95.25 mm

Side

Top

8.5"

215.9 mm

Front

9.28"

235.71 mm

.28"

7.11 mm

.18" with ring

4.572 mm

.24" without ring

6.096 mm

7.35"

186.69 mm

Side

AD-CI52ST

FrequencyResponse (2π,8Ω)

AD-CI52T

FrequencyResponse (2π,8Ω)

110

105

100

dBSPL

20Hz 50 100 200 500 1K 2K 5K 10k 20K

110

105

100

dBSPL

20Hz 50 100 200 500 1K 2K 5K 10k 20K

Frequency (Hz)

0degrees−−

45degrees−−

0degrees−−

45degrees−−

Specifications subject to change without notice.

QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U.S. Patent and Trademark ofﬁce and other countries. AcousticDesign is a trademark of QSC Audio Products, LLC. All other trademarks are the property of their respective owners. Patents may apply or be pending.

1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174

AD-CI52ST/CI52ST Spec Sheet - 06/18/08

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