QSC AD-CI52ST Ceiling speaker, 5.25" weather-resistant, 2-way, shallow can, with 70V/100V transformer and 8? bypass (Loudspeakers are priced individually, sold only in pairs)

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.

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.

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 Range1

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 Output2

Calculated Peak Output 109 dB SPL 108 dB SPL

Calculated Continuous Output 103 dB SPL 102 dB SPL

Nominal Impedance 8? 8?

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, 2.83 V, 1 m, 86 dB, 2.83 V, 1 m,

flush mounted (2?) flush mounted (2?)

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 8? 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

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