DEAR VALUED CUSTOMER.

Earthquake Sound Corporation specializes in manufacturing high end Home and Car audio products ranging from the smallest driver to the loudest subwoofer system. In its dedication to excellence, Earthquake has maintained extensive programs in research and development to provide you with the highest quality audio products.

The PA-600 is a ruggedly constructed high quality professional amplifier. The amplifier mounts into a standard 19" rack, requiring only two rack spaces (3-1/2 inches, vertically). Two automatic variable-speed internal cooling fans use the sides, rear and the front of the amplifier - not the top and bottom - for its air intake and exhaust, allowing you to stack multiple amplifier closer together in a rack mount situation. Additional rack support holes have been provided along the rear of the amplifier for the most secure installation possible. (Use of these additional supports is strongly recommended.)

The PA-600 produce up to 300 watts of power per channel @ 2 ohms, 200 watts per

channel @ 4 ohms stereo mode or 110 watts per channel @ 8 ohms (stereo mode); 560 watts

@4 ohms, 380 watts @ 8 ohms (bridged mono mode). Several "professional" features, such as 1/4" and XLR input jacks with electronically balanced Low or Medium impedance operation have been built into the amplifier. Limiting circuitry with LED indicators constantly monitors the output level of each channel and provides protection from clipping, thus preventing the generation of speaker-damaging square waves. A built-in protection circuit protects the amplifier from overloads, short circuits, and overheating. In addition, each channel features a Signal LED to assist in hookup and troubleshooting and a Fault LED which indicates when the internal protection circuitry is activated.

This owners manual is designed to better acquaint you with the PA-600 pro- amplifier. It is imperative that you read this manual in its entirety. EARTHQUAKE technicians and staff are looking forward to answer any questions you might have, please call (1-800-576-7944).

SOUND LEVEL

DURATION

 

DBA

IN HOURS

 

90

8

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

92

6

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 PA-600 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 PA-600 , and urges users to play the PA-600 in moderate levels.

Specifications & features are subject to change without notice. -3-

www.earthquakesound.com

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Earthquake Sound PA-600 operation manual Dear Valued Customer
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PA-600 specifications

The Earthquake Sound PA-600 is a powerful and versatile amplifier designed for professional audio applications, offering robust performance and a range of features that enhance audio playback. This model is tailored for both live sound environments and permanent installations, making it a preferred choice among sound engineers and venues alike.

One of the standout characteristics of the PA-600 is its impressive power output. It delivers a substantial 600 watts of peak power, capable of driving speakers at high volumes without distortion, ensuring that every note is clear and impactful. This makes it an excellent option for powering larger PA systems, where clean and loud sound projection is essential.

The PA-600 features a Class A/B amplifier design that strikes a balance between efficiency and sound quality. This technology ensures that the amplifier runs cool even under heavy loads, providing reliability during extended use. Additionally, the intelligent design reduces signal distortion and maintains audio fidelity, making it suitable for a wide range of musical genres, from rock to classical.

It also comes equipped with various inputs and outputs, including XLR, 1/4-inch TRS, and RCA ports, allowing for seamless integration with different audio sources. The dual-channel configuration enables simultaneous connection of multiple devices, catering to complex audio setups.

Another notable feature is the built-in protection circuitry, which safeguards against overheating, short circuits, and overloads. This ensures the longevity of the amplifier and prevents damage to both the unit and connected speakers. The unit also includes adjustable EQ controls, allowing users to tailor the sound to their specific requirements.

The compact design of the PA-600 makes it easy to transport and install, while its rugged construction ensures durability in demanding environments. With a sleek finish, it also has an aesthetic appeal that blends well with other audio equipment.

Overall, the Earthquake Sound PA-600 amplifies the audio experience, combining power, versatility, and reliability. Its advanced technologies and thoughtful design make it ideal for both amateur and professional use, proving to be a valuable asset in any sound system setup. Whether in a concert hall or a mobile rig, the PA-600 is engineered to deliver outstanding performance and a reliable audio experience.
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