PA speakers & subwoofers

QSC K-SUB

Powered dual-12-inch bandpass subwoofer · 1000 W Class D

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Model details

A compact powered subwoofer for portable sound systems. The dual-driver bandpass enclosure adds bass support for live bands and playback, with onboard processing and a threaded pole socket for a compatible top speaker. The two 12-inch drivers are arranged as a bandpass system rather than a conventional single-18-inch cabinet. Combination inputs accept line-level feeds and XLR through outputs continue the system signal, so main-speaker filtering and crossover settings should be agreed with the top cabinets.

Typical uses: Small band PA · DJ systems · Portable event bass support

Model: QSC K-SUB
Brand: QSC
Equipment type: PA speakers & subwoofers
Format: Dual-12-inch fourth-order bandpass
Amplifier: 1000 W continuous Class D manufacturer rating
Frequency response: 48–134 Hz, −6 dB
Connections: Two balanced XLR/1/4-inch inputs and XLR through outputs

Product references: QSC K-SUB manual (PDF)