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The IQ600 is capable of generating high sound
pressure levels. You should exercise caution when
operating this amplifier system. Long term

exposures to high levels of sound pressure will cause
permanent damage to your hearing. Sound pressure levels
exceeding 85dB can be dangerous with constant exposure. Set
your audio system to a comfortable loudness level. Earthquake
Sound Corporation does not assume liability

for damages

resulting from the direct use of the IQ600 , and urges users to
play the IQ600 at moderate listening levels.

THE CHART (ON THE SIDE) SHOWS THE U.S. GOVERNMENTS

OCCUPATIONAL SAFETY  AND  HEALTH  ADMINISTRATION  (OSHA)

REGULATIONS  WHICH  WERE  IN  EFFECT AT THE TIME OF THIS

PUBLICATION FOR PERMISSIBLE  NOISE EXPOSURE,

PER 29CFR1910.95,  TABLE G-16.

97

100
102
105
110
115

3
2
1 -  1  1/2

1
1/2
1/4    or  less

SOUND LEVEL

DBA

90
92
95

8
6
4

DURATION

IN HOURS

Congratulations and thank you for choosing the new Earthquake
Subwoofer Power Amplifier as a key component for your audiophile system.
The

amplifier is designed to meet the highest standards of performance

and sound quality. In addition Earthquake Sound’s IQ certification and patented
Class “J” circuitry ensure that the amplifier meets and exceeds all industry
standards. The new

amplifiers include many unique technologies that

allow it to deliver “World Class” performance, even under extreme operating
conditions.

The

is a ruggedly constructed high quality professional amplifier. The

Digital feedback class “J” Circuitry, allows the amplifier to produce massive
amounts of power with minimal heat production. This patented circuitry delivers
high efficiency in the range of 99%- The typical class AB amplifier runs at about
40 to 50%.

IQ600

IQ600

IQ600

IQ600

IQ600

IQ600

The

offers a room correction technique that surpasses that of all previous

attempts. The intelligent “Back emf” drive circuit interacts with the subwoofer
design and memorizes system tuning frequencies and system type. The
information which is stored in microprocessor turns on a preset group delay
curve that serves as a correction reference. This information deals only with
time correction that moves the peaks and the dips in a room to a flat. Once that is
achieved the user will resort to the final correction- EQ the room. For that reason
Earthquake’s

is truly an intelligent system. 20Hz, 30Hz and 40Hz

frequencies can be cut or boosted by a whopping 6dB, these corrections help in
producing wider range of listening position that is unprecedented for the room.

(Note: boosting the response at 20Hz is very demanding for your subwoofer.
Consult with your subwoofer maker, and determine if their subwoofer is
designed to take a boost at such low frequencies.)

Introduction

2

CAUTION:

Specifications Are Subject To Change Without Notice

IQ Suboowfer Power Amplifier

Summary of Contents for IQ600

Page 1: ...Digital Feedback Class J Subwoofer Amplifier 600WRMS U S E R M A N U A L Earthquake Sound Corporation 2727 McCone Avenue Hayward CA 94545 www earthquakesound com IQ600 MODEL Sound That Will Move You...

Page 2: ...ow it to deliver World Class performance even under extreme operating conditions The is a ruggedly constructed high quality professional amplifier The Digital feedback class J Circuitry allows the amp...

Page 3: ...duct To reduce the risk of fire or electric shock do not expose this product to rain or moisture Don not attempt to lift the ground by removing the ground pin from the AC cable Make sure that your hou...

Page 4: ...l also respond to that and create havoc on the stage In fact if you only have one single sub in the room and it s placed on the right side of the room while the bass guitar player is playing his music...

Page 5: ...Subsonic Filter 20 30 and 40Hz Room Equalization With 12dB range and Boost Required LFE Inputs Use One Only PHASE SHIFT 0 180 1 RCA XLR SPK 2 RCA XLR SPK GAIN 1 GAIN 2 PHASE DELAY 0 20ms SUBSONIC EQUA...

Page 6: ...TECKER ZIEHEN BEFORE OPENING PULL MAIN PLUG PHASE SHIFT 0 180 1 RCA XLR SPK 2 RCA XLR SPK GAIN 1 GAIN 2 PHASE DELAY 0 20ms SUBSONIC EQUALIZER ON OFF ON OFF 20Hz 6dB 6dB 30Hz 6dB 6dB 40Hz 6dB 110 120VA...

Page 7: ...6dB 110 120VAC ON 6dB OFF POWER 110 120V 60Hz 220 240 5 600W 0Hz CROSSOVER 40Hz 200Hz ON BY PASS AUTO IR INPUT 220 240VAC POWERED SUBWOOFER CAUTION VORSICHT VOR DEM FFNEN NETZSTECKER ZIEHEN BEFORE OP...

Page 8: ...Room Correction 8 Specifications Are Subject To Change Without Notice IQ Suboowfer Power Amplifier...

Page 9: ...ono 1 distortion 20Hz 2kHz 0 08 1W 4ohm 50 volts microsecond 106dB balanced 105dB unbalanced rated power 2 ohms or greater 500 XLR RCA High level Binding posts Locking mechanism Phase switch 0 180 Var...

Page 10: ...ranty claim will not be valid if the warranty registration card is not properly filled returned to Earthquake with a copy of the sales invoice E To receive product s service contact Earthquake service...

Page 11: ...t your audio system to a comfortable loudness level Earthquake Sound Corporation does not assume liability for damages resulting from the direct use of the IQ600 and urges users to play the IQ600 at m...

Page 12: ...Earthquake Sound Corporation www earthquakesound com 2727 McCone Avenue Hayward California 94545 Phone 510 732 1000 Fax 510 732 1095 Sound That Will Move You...

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