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The EX1.2MkII is a small single 12” active subwoofer system. Employing passive cooling the EX1.2MkII boasts output that belies its compact, low profile cabinet size, as with all KV2 Audio products. The enclosure dimensions make it ideal for discreet installations, as it can be installed either horizontally or vertically under seating and in furniture surrounds. Featuring KV2 Audio’s switching amplifier technology,  the EX1.2MkII delivers tight, fast and controlled bass response at very high output levels from an impressively conservative cabinet footprint.



  • Professional, Baltic birch construction with wear resistant polymer coating
  • 124dB sustained output, 127dB peak
  • 500W high efficiency, current-enhancing, switching, low frequency amplifier
  • Passive cooling makes it ideal for descreet installations
  • Complete on board subwoofer management including equalization, crossover filters, amplifier overdrive protection, output level and phase controls
  • Excellent reproduction of bass frequencies with high transient content at high output levels
  • Stereo or Mono inputs with through signal outputs and 120Hz High Pass outputs
  • 12" high output, low frequency driver with 3" (75 mm) inside/outside, epoxy baked, high temperature, voice coil assembly and neodymium magnetic structure
  • Two recessed top handles for simplified handling and carrying
  • M20 top hat for pole mounting applications
  • LED indicators for signal present, limiter, thermal condition and power ON status


System Acoustic Performance

Max SPL Long-term124dB
Max SPL Peak127dB
-3dB Response38Hz to 120Hz
-10dB Response32Hz to 120Hz
Crossover Point120Hz

Low Frequency Section

Acoustic DesignTwin Asymmetrical loading
Woofer Size / Voice Coil Diameter / Design12" / 3" / Inside outside
Magnet TypeNeodymium
Diaphragm MaterialEpoxy Reinforced Cellulose

Low Frequency Amplifier Specification

TypeHigh efficiency, Current-enhancing switch mode
Rated Continuous Power500W

Signal Input

Input Sensitivity1.0V RMS
Input Impedance20kΩ (balanced)

Power Requirements

Power ConnectorNeutrik PowerCon®
Operating Voltage115V / 230V
Operating Voltage Range100 to 120V@60Hz | 205 to 250V@50Hz
Recommended Amperage6A 115V | 3A 230V


Cabinet MaterialBaltic birch
Pole MountM20
Color"Orange peeled" Matt Black or any RAL

Physical Dimensions

Height370 mm (14.57")
Width800 mm (31.49")
Depth400 mm (15.75")
Weight32 kg (70.5lbs)

KV2 EX 1.2 Subwoofer