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QSC AD-Ci52ST 5.25in 40W/70V/100V Shallow Ceiling Speaker (Pair)

Model: QSC AD-CI52ST

QSC AD-Ci52ST 5.25in 40W/70V/100V Shallow Ceiling Speaker (Pair)
QSC AD-Ci52ST 5.25in 40W/70V/100V Shallow Ceiling Speaker (Pair)
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About: QSC AD-Ci52ST 5.25in 40W/70V/100V Shallow Ceiling Speaker (Pair)

QSC AcousticDesign™ ceiling loudspeakers offer a variety of models specifically tailored for demands of higher fidelity applications.  Designed for clarity and presence, these loudspeaker systems deliver pristine audio reproduction for installations requiring a refined audio experience.


  • 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.

Package Includes:

  • Two AD-CI52ST loudspeakers
  • Two C-ring and tile rails
  • Two round grilles (white, paintable)


  • Configuration: Compact two-way, sealed enclosure
  • Transducers
    • Low Frequency Transducer: 5.25" (13 mm) Weather-resistant, low distortion fiberglass cone woofer, 25 mm voice coil, rubber surround
    • High Frequency Transducer: 1" titanium dome tweeter, neodymium magnet
  • Frequency Response (±3 dB): 85 Hz to 20 kHz
  • Useable Frequency Range: (-10 dB): 65 Hz to 20 kHz
  • Maximum Output
    • Continuous: 102 dB SPL
    • Peak: 108 dB SPL
  • Nominal Impedance: 8 ohms
  • Power Capacity: 40 W (100 hours IEC)
  • Recommended amplifier power (loudspeaker "program" power): 80 watts
  • Sensitivity: 86 dB, 2.83 V, 1 m, flush mounted (2 pi)
  • Nominal Coverage: 90° conical pattern
  • Bass Loading: Sealed
    • Type: Custom low distortion laminated core, wide bandwidth design
    • Taps: 70/100V: 30, 15, 7.5, 3.8 Watts and 8 ohms selected by switch
    • Insertion Loss: 0.8 dB, averaged over 50 Hz - 20 kHz bandwidth (30 W tap)
    • Distortion: Less than 0.01% THD above 100 Hz, 0.2% at 50 Hz (30 W tap)
    • Bandwidth: 40 Hz to 20 kHz (-1 dB, all taps)
    • Material: Injection molded high impact polystyrene baffle on a steel enclosure
    • Finish: White (paintable)
    • Grill: 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: 7.5 lb (3.4 kg) net, each / 24 lb (10.9 kg) shipping, per pair

UPC: 684284049223 is a Canadian authorized QSC retailer.

Reviews: QSC AD-Ci52ST 5.25in 40W/70V/100V Shallow Ceiling Speaker (Pair)

There are currently no product reviews.

Warranty: QSC AD-Ci52ST 5.25in 40W/70V/100V Shallow Ceiling Speaker (Pair) Warranty:

30 Days

Manufacturer's Warranty:

3-year limited warranty.

Promotional 6-year warranty: For an additional 3 years of warranty on all amplifiers GX, RMX, PLX, PLX2, and on HPR and K Series powered loudspeaker products, register on the QSC web site.