The Boulder MKII

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The Boulder MKII 3-way active monitor redefines expected levels of sonic performance and its regarded as a truly world-clas monitoring system.Like the critically acclaimed MKI model, the MKII's boast a fast, accurate detailed sound and prodigious extended bass reponse, and deliver even greater levels of SPL to fit into any critical listening environment or scenario.


Regarded as easily rivaling many larger and more costly monitoring systems, The Boulders incorporate four discrete bi-polar low feedback amplifiers from the The Rock MKII. With the power delivery of the custom class A/B amplifier at their disposal, The Boulder deliver a life-like sense of scale and take any performance in their stride.


The Boulders are fitted with two 220mm SEAS custom Aluminum woofers that provide tremendous bass precision down to 32Hz and beyond.

Sealed Cabinet

To accommodate the large 220mm woofer the sealed cabinet uses Baltic Birch plywood and a huge 30mm Corian front braffle with large radius edges to reduce reflection and cabinet resonance.


The Boulder can be expanded with dedicated Boulder Bass Extenders or partnered with an Avlanche Sub-woofer to make a 2.1 or 5.1 system and can even be used with Rocks due to the consistent sonic signature.

  • 2 x 220mm (8") SEAS Woofer
  • Dual Concentric 130mm (4.5") ELAC Mid Range and 50kHz Folded Ribbon Tweeter
  • Sealed Baltic Birch 18mm (.75") Plywood Cabinet
  • Corian 30mm (1.2") Front Braffle Design
  • 4 x Discrete A/B Amplifiers by Esoteric Audio Research(200 watts total)
  • Balanced XLR Input
  • 37Hz - 38 kHz +/- 3db
  • 390mm D x 268mm W x 614mm H
  • 15.4" D x 10.5" W x 24.2" H