5.25" 2-way, 90° conical


  • 5.25 inch, 2-way design - in a lightweight, contemporary styled multipurpose enclosure
  • Magnetically shielded LF transducer - ideal for use near video monitors
  • Flexible ball mount assembly included - for convenient installation
  • 70V/100V transformer versions available - for use with distributed audio systems
  • Available optional yoke mount bracket

Package Includes:
Two AD-S52 or AD-S52T loudspeakers
Two ball mounts
Two connector protection caps

Configuration Compact two way, ported enclosure
Low Frequency Transducer
High Frequency Transducer

5.25" shielded, weather-resistant
1" neodymium tweeter
Frequency Range 1
Frequency Response (±3 dB)
Useable Frequency Range (-10 dB)

75 Hz - 19 kHz
60 Hz - 20 kHz
Maximum Output 2

104 dB SPL
110 dB SPL
Nominal Impedance 8 ohms 8 ohms
(with transformer bypassed)
Power Rating 3 60 W (IEC, 100 hours)
Recommended Max Amp Power 120 W RMS
Sensitivity 4 86.5 dB, 2.83 V at 1 m, free field (4 pi) 86 dB, 2.83 V at 1 m, free field (4 pi)
Nominal Coverage 90° H x 90° V


Type n/a Custom low distortion laminated core,
wide bandwidth design
Taps n/a 70V 30, 15, 7.5, 3.75 watts; 8Ω bypass
100V 30, 15, 7.5 watts; 8Ω bypass


Material Injection molded, weather resistant,
high impact polystyrene
Finish White or black (paintable)
Weather Resistance Yes
Grille Heavy duty powder coated aluminum
Connectors Pair of 5-way binding posts
Mounting Hardware Included ball mount assembly; available optional yoke mount
Product Dimensions
H x W x D
11.28" x 7.02" x 9.33"
286.5 mm x 178.3 mm x 211.6 mm
Weight 15 lb. (6.8 kg) net
22 lb. (10 kg) shipping
18 lb (8.2 kg) net
25 lb (11.4 kg) shipping

1 All frequency ranges specified refer to measured free field response (full space, 4pi)
2 Calculated using specified power capacity and system sensitivity. 6 dB peak-to-average signal ratio assumed.
3 Continuous IEC specified test signal
4 Based on nominal impedance, measured in full-space.

Specifications are subject to change without notice.

The versatile mounting options and compact size of the AD-S52 make it a perfect fit for most any application. (Some mounting accessories sold separately)

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.