Introduction

Introduction	IQ Subwoofer Power Amplifier

Congratulations and thank you for choosing the new Earthquake IQ1500 Subwoofer Power Amplifier as a key component for your audiophile system. The IQ1500 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 IQ1500 amplifiers include many unique technologies that allow it to deliver “World Class” performance, even under extreme operating conditions.

The IQ1500 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%.

The IQ1500 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 IQ1500 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.)

SOUND LEVEL	DURATION
DBA	IN HOURS
90	8	THE CHART (ON THE SIDE) SHOWS THE U.S. GOVERNMENTS
92	6	THE CHART (ON THE SIDE) SHOWS THE U.S. GOVERNMENTS
95	4	OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA)
97	3	REGULATIONS WHICH WERE IN EFFECT AT THE TIME OF THIS
100	2	PUBLICATION FOR PERMISSIBLE NOISE EXPOSURE,
102	1 - 1 1/2	PER 29CFR1910.95, TABLE G-16.
105	1
110	1/2
115	1/4 or less

CAUTION: The IQ1500 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 IQ1500 , and urges users to play the IQ1500 at moderate listening levels.

Specifications Are Subject To Change Without Notice	2

IQ1500 specifications

The Earthquake Sound IQ1500 is an impressive subwoofer amplifier that combines power, cutting-edge technology, and high-quality sound to deliver an exceptional audio experience. As part of Earthquake Sound's commitment to producing premium audio products, the IQ1500 stands out with its robust performance and versatile features.

One of the standout features of the IQ1500 is its incredible power output. Offering 1500 watts of maximum power, this amplifier is designed to drive even the most demanding subwoofers with ease. This exceptional power capability ensures deep, rich bass with clarity, making it an ideal choice for both home theater setups and professional audio applications.

The IQ1500 is equipped with a range of technologies that enhance its performance. One of the key technologies is its intelligent crossover system, which allows users to precisely adjust the frequency response to match their specific audio needs. This feature ensures a seamless integration between the subwoofer and other speakers in the system, resulting in a well-balanced soundstage.

Another notable characteristic of the IQ1500 is its compact design. Despite its powerful output, the amplifier is designed to fit easily into various cabinet spaces or entertainment centers. This space-saving design does not compromise performance, making it a favored choice for audiophiles who seek both power and aesthetics.

The amplifier also features advanced thermal management technology, which helps maintain optimal operating temperature during extended periods of use. This feature not only enhances reliability but also prolongs the lifespan of the component, ensuring consistent performance over time.

In addition to its performance features, the Earthquake Sound IQ1500 incorporates user-friendly controls, including adjustable gain, phase, and low-pass filter settings. These controls allow users to fine-tune their audio experience to suit their individual preferences and room acoustics.

Furthermore, the build quality of the IQ1500 is commendable, with sturdy construction that ensures durability and resilience in high-performance environments. The use of high-grade materials contributes to its reliable operation, making it a long-term investment for any sound enthusiast.

Overall, the Earthquake Sound IQ1500 is a powerhouse amplifier that combines advanced technology, user-friendly features, and a robust design. Its ability to deliver powerful bass while maintaining clarity makes it a valuable addition to any audio setup, appealing to both casual listeners and dedicated audiophiles alike. Whether for home theater or music production, the IQ1500 promises to elevate the listening experience.

IQ Subwoofer Power Amplifier

IQ1500 specifications