QSC KSub Twin 12 inch Bandpass Active PA Subwoofer with Castors

QSC KSub Twin 12 inch Bandpass Active PA Subwoofer with Castors (opened)

Product code: bstuwqscksub

The QSC KSub is a dual-12-inch bandpass design subwoofer, constructed of premium birch with high-quality, low-noise casters. The subwoofer features a threaded pole receptacle for a positive, wobble free connection to a threaded speaker pole (included).


  • QSC KSub Twin 12 inch Bandpass Active PA Subwoofer with Castors (opened)

    This item has been opened. It is as new and complete but has been shipped to a customer, opened and returned as unwanted.
    It comes with a full warranty.

    The QSC KSub is a dual-12-inch bandpass design subwoofer, constructed of premium birch with high-quality, low-noise casters. The subwoofer features a threaded pole receptacle for a positive, wobble free connection to a threaded speaker pole (included).

    Main Features

    • Lightweight and portable
    • 1000 Watt class D amplifier
    • Extensive DSP enhances system performance
    • Rugged birch plywood enclosure
    • Tour-grade 18 gauge steel grilles
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    The QSC KSub is a dual-12-inch bandpass design subwoofer, constructed of premium birch with high-quality, low-noise casters. The subwoofer features a threaded pole receptacle for a positive, wobble free connection to a threaded speaker pole (included).
    Remote gain control capability is offered via a potentiometer (not included) connected to the on-board Euroblock connector. In an installed application, multiple K Series speakers can be 'daisy-chained' for total gain control from a single remote pot. Auto-standby mode is engaged after 5 minutes of inactivity.
    Extensive DSP
    • DMT™ (Directivity Matched Transition) provides for matched LF and HF coverage across the entire listening area, eliminating unnatural 'dead' or 'hot' frequency zones.
    • Intrinsic Correction™, first featured in our high-end line-array products maps 65-75 spacially-averaged measurements to IIR and FIR filters that actively adjust time, frequency and amplitude response to a maximally flat bandpass target. The result is a speaker that behaves equally well across the entire sound field.
    • DEEP™ and excursion limiting allow for extended low-frequency response by actively managing low-frequency transients without degradation of the underlying signal or adjacent frequencies.
    • GuardRail™ protection, first introduced on our GX Series amplifiers protects both the amplifier module and your performance from unnatural and destructive clipping.

    QSC KSub Specifications
    Configuration: 4th Order Bandpass
    Transducers: 2 x 12 inch cone transducers
    Frequency Response (-6 dB): 48 Hz - 134 Hz
    Frequency Range (-10 dB): 44 Hz - 148 Hz
    Maximum SPL1: 130 dB peak
    Amplifiers: 1000 W continuous Class D (2x500 W), 2000 W peak
    Controls: Power, Gain, LF Mode (Normal/DEEP™), Polarity (Normal/Reverse), Front LED (On/Off/Limit)
    Indicators: Power, Signal, Standby, Limit
    Connectors: Dual balanced female XLR/Combi line level input, Dual Balanced male XLR full range line level out, Remote gain control, Locking IEC power connector
    Material: Painted birch plywood
    Finish: Black textured paint
    Dimensions (H x W x D): 665 x 356 x 714 mm / 26 x 14 x 28.1 inches (including casters)
    Weight: 33.6 Kgs / 74 lbs.

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  • Additional Information

    Brand Qsc
    Condition Opened
    Power 501-1000W
    Specifications Configuration: 4th Order Bandpass
    Transducers: 2 x 12 inch cone transducers
    Frequency Response (-6 dB): 48 Hz - 134 Hz
    Frequency Range (-10 dB): 44 Hz - 148 Hz
    Maximum SPL1: 130 dB peak
    Amplifiers: 1000 W continuous Class D (2x500 W), 2000 W peak
    Controls: Power, Gain, LF Mode (Normal/DEEP™), Polarity (Normal/Reverse), Front LED (On/Off/Limit)
    Indicators: Power, Signal, Standby, Limit
    Connectors: Dual balanced female XLR/Combi line level input, Dual Balanced male XLR full range line level out, Remote gain control, Locking IEC power connector
    Material: Painted birch plywood
    Finish: Black textured paint
    Dimensions (H x W x D): 665 x 356 x 714 mm / 26 x 14 x 28.1 inches (including casters)
    Weight: 33.6 Kgs / 74 lbs.

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