QSC KW153 15 Inch Three-Way Powered Loudspeaker
The KW153 is the three-way box in QSC's KW Series and the only one that gives the vocal range its own driver: a 15 inch cone for low frequencies, a 6.5 inch midrange cone, and the line's standard 1.75 inch compression driver up top. Handing the midband to a dedicated transducer keeps voices clear at the levels where a two-way of the same size is asking its woofer to do two jobs at once.
It reaches 35 Hz at -6 dB, far enough down that a single KW153 covers a room a two-way would need a subwoofer to fill, and its 1000 W Class D module splits 500 W to the woofer and 500 W to the mid/high section. The 15 mm birch trapezoid stands 43 inches tall, carries M10 rigging points for the KW M10 Kit, and holds a 75 degree axisymmetric pattern through Directivity Matched Transition. Channel A takes mic or line with four-position gain, and DEEP DSP, Intrinsic Correction and GuardRail protection run throughout.
| Configuration | 15 in 3-way trapezoidal loudspeaker |
|---|---|
| Low Frequency | 15 in cone transducer |
| Mid Frequency | 6.5 in midrange cone transducer |
| High Frequency | 1.75 in diaphragm compression driver |
| Frequency Response (-6 dB) | 35 Hz - 18 kHz |
| Frequency Range (-10 dB) | 33 Hz - 20 kHz |
| Nominal Coverage (-6 dB) | 75 degrees axisymmetric |
| Maximum SPL | 134 dB peak |
| Power Output | 1000 W Class D continuous (500 W LF, 500 W MF/HF) |
| Enclosure | 15 mm painted birch plywood, black textured paint, 16 gauge steel grille |
| Dimensions (H x W x D) | 43.1 x 18.5 x 16.8 in (1094 x 470 x 427 mm) |
| Net Weight | 87 lb (39.5 kg) |









