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Earthquake - IQ-600 - 600-Watt Amplifier is available to buy in increments of 1

Earthquake - IQ-600 - 600-Watt Amplifier

Earthquake - IQ-600 - 600-Watt Amplifier

Earthquake - IQ-600 - 600-Watt Amplifier

This powerful 600 Watt amplifier is used in Earthquake's strongest subwoofer, the MKVI. Now it is available for custom installers to build their own enclosure. The IQ-600 comes complete with a transformer, remote, and remote eye.

The IQ-600 allows the user to align the subwoofer output with the rest of the system. Front speaker frequency response extends down to 50 or even 40 Hz; this is well within the frequency response of most subwoofers. If the LCR (left front, center front, right front) were to be offset in time with the subwoofer, some of the low frequencies will be canceled and some will multiply.

To be true to the music, Earthquake Engineers did not want to just Equalize the frequency response using an equalizer because it would mask the problem, not solve it. To solve it, Earthquake uses a patented phase adjustment technique that allows the users to flip the phase between 0 and 180 (no group delay is added). For additional final fine-tuning, there is an in-line variable delay circuit to fully optimize the response. Single band room EQ offers no solution for room equalization and is an old-fashioned bass boost. An IQ-600 room EQ offers local boost or cuts that will actually smooth out peaks and dips in the response, leaving it flat.

IQ-600 also provides a subsonic filter that is switchable with a high pass at 20Hz. The user can boost 30Hz and 20Hz to move the subsonic center frequency to a lower or even higher value. This amplifier is a true custom tool for custom installers.

The IQ Series amplifiers are designed with the patented class “J” circuitry which allows the amplifier to produce massive amounts of ower with minimal heat production.

With built-in room equalization, the IQ Series amplifiers offer a room correction technique that surpasses that of all previous attempts. Just like the XJ Series, these IQ amplifiers take time, reflections and refractions into onsideration in order to correct “phase” related problem in the room.

Whether you want to have a true room correction amplifier or upgrade the power of your subwoofer, the IQ Series amplifiers will deliver an unprecedented performance to your home theater experience.


  • XLR/RCA and high level input connections
  • Room equalization
  • Subsonic filter
  • Phase shift
  • Phase Delay
  • Custom flush mount design
  • Dual gains internally mixed
  • Music sensing ON/OFF
  • DC turn ON/OFF
  • IR Capability



Power Output
1 x 300 Watts RMS @ 8 Ohms
1 x 365 Watts RMS @ 4 Ohms
1 x 500 Watts RMS @ 2 Ohms

Power Intake

Dimensions (HxWxD)
11 11/16" x 8 1/2" x 3 7/8"

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