INSIDE THIS INSTRUCTION MANUAL

 

Important Safety Instructions / Specifications

2

Set-up Information

3

Panel Specifications

4

Controls and Connections

5-7

Contact Information

8

IMPORTANT SAFETY

INFORMATION

1. Read these instructions.

2. Follow all instructions.

3. Keep these instructions.

4. Heed all warnings.

5. Do not use the ACT-18 near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, stoves, or other devices that may produce heat.

9. Do not defeat the safety purpose of the polarization or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched, particularly at the plug and the point where it exits the ACT-18 amplifier.

11. Only use attachments / accessories specified by B-52 Pro-Audio.

12. Use only with a cart, stand, bracket or table specified by B-52 Pro-Audio or sold with

the ACT-18. When a cart is used, use caution when moving the cart / ACT-18 combination to avoid injury from-tip over.

13. Unplug the ACT-18 during lightning storms or when un-used for long periods of time.

14. Refer all servicing to qualified personnel. Servicing is required when the ACT-18 has been damaged in any way such as when power-cord or plug is damaged, liquid has been spilled, or objects have fallen into the ACT-18 cabinet, the ACT-18 has been exposed to moisture or rain, does not operate normally, or has been dropped.

15. To reduce the risk of fire or electric shock, do not expose the ACT-18 to rain or moisture.

 

HEED ALL WARNINGS

CAUTION

WARNING: To reduce the risk or fire or

RISK OF ELECTRIC SHOCK

electrical shock do not expose this

DO NOT OPEN

equipment to rain or moisture.

 

AMPLIFIER SPECIFICATIONS:

υ Made In The U.S.A.

υ 1200 watt RMS Digital Amplification. υ 800 watts RMS @ 8 Ohms.

υ 1200 watts RMS @ 4 Ohms.

υ Frequency Range: 30-120Hz (+/- 3db).

υ Crossover Frequency: 120 Hz.

υ Crossover Slope: 4th Order (24db/octave) - LP & HP

υ Subsonic Filter: 6th Order (36 db/octave).

υ THD: 0.075% @ Rated Power Over Full Bandwidth.

υ Nominal Impedance: 8 Ohms

υ Sensitivity: 102 dB

υ Peak SPL: 132 dB

υ Power Consumption @ Idle: Less than 20 watts.

υ Power Requirements: 120v<>60Hz<>12a.

AMPLIFIER FEATURES:

υ XLR Balanced Inputs.

υ XLR Balanced Full-Range Outputs

υ XLR Balanced (120 Hz) High-Pass Outputs. υ 0–180 Degree Phase Switch.

υ Neutrik Speaker Output.

υ Full Thermal & Short Circuit Protection. υ Signal Sensing On/Off Circuitry.

CABINET FEATURES:

υ Solid Void-Free Plywood Construction. υ Scratch Resistant Black Carpet Finish. υ 3” Heavy-Duty Detachable Casters.

υ 16-Gauge Perforated Steel Grill.

υ Pole-Mount Receptacle.

υ Dimensions (W) x (H) x (D): 24” x 33” x 22”

υ Weight: 110 lbs

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ETI Sound Systems, INC ACT18 manual Important Safety Information, Heed ALL Warnings

ACT18 specifications

ETI Sound Systems, Inc. has made a significant mark in the professional audio equipment industry, particularly with their flagship product, the ACT18. This state-of-the-art loudspeaker system is designed to cater to a variety of live sound applications, ensuring that audio professionals have access to a powerful and reliable sound solution.

The ACT18 is characterized by its impressive low-frequency response and high output capabilities. It features an 18-inch high-efficiency woofer that delivers deep, punchy bass, making it ideal for applications such as concerts, festivals, and other live events. The woofer is engineered with a robust magnetic circuit and a large voice coil, which contribute to its ability to handle high power levels while maintaining clarity and precision.

One of the key technologies integrated into the ACT18 is the advanced digital signal processing (DSP) module. This feature enables users to fine-tune the audio output according to the specific requirements of the venue and type of performance. With customizable EQ settings, delay options, and crossover configurations, the DSP ensures optimal sound reproduction and maximizes the performance of the loudspeaker in any environment.

In addition to its acoustic capabilities, the ACT18 is designed with durability in mind. The enclosure is constructed from high-quality plywood, coated with a rugged finish to withstand the rigors of touring and frequent transport. The loudspeaker is also equipped with reinforced corners and handles, making it easier for audio professionals to maneuver and set up quickly.

Further enhancing its versatility, the ACT18 can be used in various configurations. It can be deployed as a standalone unit, paired with other loudspeakers, or integrated into a larger sound system. This flexibility makes it suitable for both small venues and large-scale events.

Safety features are also a priority in the ACT18 design. The loudspeaker includes thermal protection circuitry to prevent overheating during prolonged use, ensuring reliability and longevity. Additionally, the connectors are designed for secure integration with other audio equipment, reducing the risk of accidental disconnections.

In summary, the ETI Sound Systems, Inc. ACT18 stands out as a powerful, reliable, and versatile loudspeaker system. Its advanced features, including high-efficiency technology, digital signal processing, and robust construction, make it an excellent choice for audio professionals looking for quality sound in demanding environments. Whether for live performances, installations, or event production, the ACT18 continues to deliver outstanding audio performance, setting a new standard in the pro audio market.