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QSC KSub
Dual 12" Bandpass Transducer Powered Loudspeaker with Speaker Pole

OUR PART #  KSUB-QSC

Our Price: $1,079.99
List Price: $1,369.99
You save 21%! (Low Price Guarantee)
In Stock

Recommended Accessories

QSC's KSub is a lightweight powered subwoofer that features a 1000 Watt Class D power module and includes dual 12" bandpass transducers with a max SPL of 130dB.  The KSub also features auto-standby mode, XLR & 1/4" TRS mic/line level ins, RCA phono ins, direct outs on each channel, a balanced out for daisy-chaining up to three sources and extensive DSP processing.  EQ settings for both the high- and low-frequency transducers are adjustable on each unit.  LEDs can be set to show when the unit is on or when its clip limiter has been engaged.

Multiple units can be daisy-chained for total gain control from a single remote pot.  Also features a threaded pole-mount receptacle, steel grille and birch housing.

NOTE: Speaker pole is included and is compatible with the KSub's threaded socket.

QSC KSub Features:

  • Dual 12” subwoofer drivers
  • Maximum SPL:  130 dB peak
  • Lightweight portable powered speaker with legendary QSC amplifier power and reliability
  • 1000-watt continuous Class D power modules in all models
  • Extensive DSP enhances system performance
  • Attractive and professional appearance
  • Comfortable ergonomic handles
  • Rugged birch plywood enclosure
  • Threaded pole socket
  • Speaker mounting pole included (35 mm diameter, 26.4 in / 67 cm long, M20 thread)

QSC KSub Specifications:

  • General:
    • Configuration: 4th Order Band pass
    • Transducers:  Two (2) Low-frequency 12" cone transducers
    • Frequency Response (-6 dB):  48 Hz - 134 Hz
    • Frequency Range (-10 dB):  44 Hz - 148 Hz
    • Maximum SPL*:  130 dB peak
      • *Note:  For comparison purposes and in accordance with common industry practice, maximum peak SPL specifications are theoretical calculations based upon transducer sensitivity and peak available amplifier power.
  • Amplifier:
    • RMS Power Output**:  1000 Watts continuous Class D (2x 500 W)
      • **Note:  Independent of limiters and driver protection circuits.
    • Peak Power Output:  2000 Watts peak
    • Input Impedance, XLR / 1/4":  40 kOhms balanced / 20 kOhms unbalanced
    • Controls: 
      • Power
      • Gain
      • LF Mode (Normal/DEEP™)
      • Polarity (Normal/Reverse)
      • Front LED (On/Off/Limit)
    • Indicators: 
      • Power
      • Signal
      • Standby
      • Limit
    • Connectors: 
      • Two (2) balanced female XLR / 1/4" line level inputs
      • Two (2) Balanced male XLR full range line level outputs
      • Remote gain control
      • Locking IEC power connector
    • Cooling:  On demand, 50 mm variable speed fan
    • Amplifier Protection:  Thermal limiting, output over current, over temperature muting, GuardRail™
    • Transducer Protection:  Thermal limiting, excursion limiting
    • AC Power Input:  Universal power supply 100 - 240VAC, 50 - 60 Hz
    • AC Power Consumption (1/8 Power):
      • 100 VAC, 2.3 A
      • 120 VAC, 2.01A
      • 230 VAC, 1.13 A
  • Enclosure:
    • Material:  Painted birch plywood
    • Finish:  Black textured paint
    • Dimensions including casters (HxWxD):  26" x 14" x 28.1" (665 mm x 356 mm x 714 mm)
    • Net Weight:  74 lbs (33.6 kg)
    • Available Accessories:  KSub Cover (sold separately)
for KSubQSC KSub Cover for KSub

Soft, padded cover made with weather resistant, heavy-duty Nylon/Cordura® material for QSC's KSub with grille guard. Included strap facilitates secure transport of K Series 2-way speakers for 1-trip load-in. 

In Stock

Our Price:$99.99List Price: $119.99You save 17%!

QSC KSub
Dual 12" Bandpass Transducer Powered Loudspeaker with Speaker Pole

OUR PART #  KSUB-QSC

Product Information:

QSC's KSub is a lightweight powered subwoofer that features a 1000 Watt Class D power module and includes dual 12" bandpass transducers with a max SPL of 130dB.  The KSub also features auto-standby mode, XLR & 1/4" TRS mic/line level ins, RCA phono ins, direct outs on each channel, a balanced out for daisy-chaining up to three sources and extensive DSP processing.  EQ settings for both the high- and low-frequency transducers are adjustable on each unit.  LEDs can be set to show when the unit is on or when its clip limiter has been engaged.

Multiple units can be daisy-chained for total gain control from a single remote pot.  Also features a threaded pole-mount receptacle, steel grille and birch housing.

NOTE: Speaker pole is included and is compatible with the KSub's threaded socket.

QSC KSub Features:

  • Dual 12” subwoofer drivers
  • Maximum SPL:  130 dB peak
  • Lightweight portable powered speaker with legendary QSC amplifier power and reliability
  • 1000-watt continuous Class D power modules in all models
  • Extensive DSP enhances system performance
  • Attractive and professional appearance
  • Comfortable ergonomic handles
  • Rugged birch plywood enclosure
  • Threaded pole socket
  • Speaker mounting pole included (35 mm diameter, 26.4 in / 67 cm long, M20 thread)

QSC KSub Specifications:

  • General:
    • Configuration: 4th Order Band pass
    • Transducers:  Two (2) Low-frequency 12" cone transducers
    • Frequency Response (-6 dB):  48 Hz - 134 Hz
    • Frequency Range (-10 dB):  44 Hz - 148 Hz
    • Maximum SPL*:  130 dB peak
      • *Note:  For comparison purposes and in accordance with common industry practice, maximum peak SPL specifications are theoretical calculations based upon transducer sensitivity and peak available amplifier power.
  • Amplifier:
    • RMS Power Output**:  1000 Watts continuous Class D (2x 500 W)
      • **Note:  Independent of limiters and driver protection circuits.
    • Peak Power Output:  2000 Watts peak
    • Input Impedance, XLR / 1/4":  40 kOhms balanced / 20 kOhms unbalanced
    • Controls: 
      • Power
      • Gain
      • LF Mode (Normal/DEEP™)
      • Polarity (Normal/Reverse)
      • Front LED (On/Off/Limit)
    • Indicators: 
      • Power
      • Signal
      • Standby
      • Limit
    • Connectors: 
      • Two (2) balanced female XLR / 1/4" line level inputs
      • Two (2) Balanced male XLR full range line level outputs
      • Remote gain control
      • Locking IEC power connector
    • Cooling:  On demand, 50 mm variable speed fan
    • Amplifier Protection:  Thermal limiting, output over current, over temperature muting, GuardRail™
    • Transducer Protection:  Thermal limiting, excursion limiting
    • AC Power Input:  Universal power supply 100 - 240VAC, 50 - 60 Hz
    • AC Power Consumption (1/8 Power):
      • 100 VAC, 2.3 A
      • 120 VAC, 2.01A
      • 230 VAC, 1.13 A
  • Enclosure:
    • Material:  Painted birch plywood
    • Finish:  Black textured paint
    • Dimensions including casters (HxWxD):  26" x 14" x 28.1" (665 mm x 356 mm x 714 mm)
    • Net Weight:  74 lbs (33.6 kg)
    • Available Accessories:  KSub Cover (sold separately)
for KSubQSC KSub Cover for KSub

Soft, padded cover made with weather resistant, heavy-duty Nylon/Cordura® material for QSC's KSub with grille guard. Included strap facilitates secure transport of K Series 2-way speakers for 1-trip load-in. 

In Stock

Our Price:$99.99List Price: $119.99You save 17%!

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