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Earthquake - IQ CM8 Dual Voice Coil In-Ceiling Speaker (Single)

Earthquake - IQ CM8 Dual Voice Coil In-Ceiling Speaker

Earthquake - IQ CM8 Dual Voice Coil In-Ceiling Speaker (Single) 

Designed like no other, the IQ speakers deliver in both quantity and quality. Aluminum Electroplated carbon fiber cones with over hung butyl surrounds maximize piston area producing louder bass effects. Aluminum electroplating the carbon fiber also adds strength, life and faster more accurate overall performance. Another hot feature is the dual rotating neodymium tweeters that give you line action high frequency response and wider sound dispersion, eliminating diluted images and hot spots.


  • +/- 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
  • Hung butyl surround
  • 250-Volt Mylar Caps
  • Elaborate filter network:
      - High pass 12dB/Oct. @ 2kHz
      - Low pass 12dB/Oct. @ 2kHz


Manufacturer:  Earthquake
Model Number:  CM8-Dual
Speaker Type:  In-ceiling dual voice coil


Power Handling:  400 Watts
Impedance:  8 Ohms
Frequency Response:  30 Hz - 21 kHz
Sensitivity:  91 dB @ 1W/1M
Connection Type:  N/A


Woofer:  8' low mass woven glass fiber cone
Mid Range:  N/A
Tweeter:  7/8" (20mm) Silk dome swiveling neodymium


External Dimensions:  11.5" (254mm) Diameter
Cutout Dimensions:  9.8" (251mm) Diameter
Mounting Depth:  4.2" (107mm)
Shipping Dimensions:  N/A
Weight:  4.48 lbs.
Shipping Weight:  N/A
Finish:  White
Grille:  Included
Warranty:  1 Year standard, 4 Year optional (and accidental)
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