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Q-15 Full Range Loudspeaker

For Extended Low-Frequency Response at High Sound Pressure Levels

Q-15 Full Range Loudspeaker
Q-15 Full-Range Speaker



The Q-15 loudspeaker is designed to offer accurate, full-range voice announcements and high-fidelity music reproduction.

For Installations Requiring: • Clear Voice Announcements • Full Range Music Reproduction • High Sound Pressure Levels • Extended Low Frequency Response

Ideal for • Gymnasiums • Ice Rinks • Arenas • Churches • Swimming Pools • Open Public Areas • Bars • Nightclubs • Applications where Clear Voice Announcements and High Fidelity Foreground Music with Extended Low Frequency Performance at High Sound Pressure Levels are Required.

The Q-15 offers high power handling capability (350W RMS), high sensitivity (97dB 1W/1m) and high SPL capability (122.5dB 350W/1m). Both standard and custom colors are available.     read more...
Q-15 Features:
  • 27 in. Sphere diameter
  • Hemispherical coverage pattern
  • Accurate, full-range voice announcements
  • High-fidelity music reproduction
  • High sensitivity (97dB 1W/1m)
  • High SPL capability (122.5dB 350W/1m)
  • High power handling capability (350W RMS)
  • Standard and custom colors available
  • Made in the USA
Q-15 Specifications:

Sensitivity 97 dB SPL; 1W/1m
Maximum SPL 122.5 dB; 350 Watts/1m
Power Handling 350 Watts RMS
Frequency Response 35 Hz to 15 kHz
Coverage 180° vertical
360° horizontal
Rated Impedance 8 ohms
Weight 63 lbs. (28.6 kg)
Size Height: 33 in. (840mm)
Sphere Diameter: 27 in. (685mm)
Reflector Diameter: 32 in. (815mm)
Driver 15 in. true coaxial
(LF and HF share common magnetic circuit)
Material Enclosure and reflector are fiberglass with gelcoat finish; rust-resistant hardware
Q-15 Combo Kits:


BK2 Bracket and TWO Model Q-15 Loudspeakers (Bar with ATB’s) Electronic Crossover not included.


BK4 Bracket and FOUR Model Q-15 Loudspeakers (Bar with ATB’s) Electronic Crossover not included.

Q-15 Related Items:


Hanging Kit three way cable for single point suspension



Hanging Kit Extension 24 in. extension for use with HKL



Hanging Kit Extension 48 in. extension for use with HKL



Adjustable Tilt Bracket



Universal Beam Clamp




The Model TX-250 is a 250 Watt line matching transformer for the Model Q-12A, with taps for 70 and 100 Volt constant voltage systems. The TX-250 is designed for factory mounting in the Q-12A reflector. Connection to system wiring is via 6 in. color-coded flying leads. Available taps: 70 Volt: 250, 125, and 62.5 Watts; 100 Volt: 250 and 125 Watts.



Architects and Engineers Specifications

The loudspeaker shall be a self-contained, widefrequency-range device with a hemispherical coverage pattern. The frequency response shall be 35Hz – 15kHz; the vertical polar coverage shall be 180° within ± 6dB. The loudspeaker shall have a minimum sensitivity of 97dB SPL at 1 Watt/1 meter, a continuous power handling capability of 350 Watts RMS, and a rated impedance of 8 ohms. The loudspeaker driver shall be one 15-inch woofer with coaxial tweeter sharing a common magnetic circuit. The driver shall be mounted in a spherical enclosure made of fiberglass. All hardware shall be stainless steel, plated steel, or aluminum. Optional mounting kits are available; a three-element cable hanging kit for single-point suspension, or array kits for multiple loudspeaker, single source systems. The enclosure and reflector color shall be ordered in advance, otherwise white shall be supplied. The loudspeaker shall be comprised of a 32-inch (815mm) diameter reflector mounted to a 27-inch (685mm) diameter sphere. The complete loudspeaker shall be 33 inches (840mm) in overall height and weigh 63 lbs. (28.6kg). The loudspeaker shall be the Soundsphere® Model Q-15.