Earthquake Sound Corp.

IQ CM8Dual In-Ceiling Speakers

Designed like no other, the IQ speakers deliver in quantity and quality. Aluminum electroplated carbon fiber cones with an overhung butyl rubber surround maximize the piston area to produce louder bass effects. Aluminum electroplating the carbon fiber also adds strength, life, and faster and more accurate overall performance.

Another hot feature is the dual rotating neodymium tweeters, which give you line-action high-frequency response and wider sound dispersion, eliminating diluted images and hot spots. IQ’s sophisticated and elaborate crossover networks use neither 100 nor 200 but 250-volt mylar caps, delivering performance well above the needed linear response.

These speakers, covered with anti-rust 16-gauge powder-coated aluminum grills, are ideal for high-humidity areas such as bathrooms, indoor pools, and atriums. Each IQ speaker has three-way switches that can correct human ear imperfections and iron out imperfections in your system.

Specifications
  • Singles have +/- 3dB tweeter control
  • Duals have +/- 3dB tweeter and woofer controls
  • Gold plated spring loaded terminals
  • Aluminum electroplated glass fiber cones
  • 3/4″ neodymium magnet dome tweeter with “On-Axis” 180° positioning for better staging and imaging
  • High roll surround / long excursion
  • Easy install “Turn-N-Lock™” mechanism
  • Easy connect spring-loaded binding posts
  • Poly switch for tweeter protection
  •  Overhung butyl rubber surround
  • 250V mylar caps
  • Elaborate filter network:
    • High pass 12dB/Oct @ 2kHz
    • Low pass 12dB/Oct @ 2kHz
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