Clean only with a clean dry cloth | ETI Sound Systems, INC ACT-18X

IMPORTANT SAFETY

INFORMATION

1.Read all the instructions before attempting to use the ACT-18X.

2.Follow all instructions contained in this manual.

3.Keep these instructions in a safe place where they can be found and referred to in the future.

4.Use common sense in operating your ACT-18X and heed all warnings included in your operating manual.

5.Do not use the ACT-18X near water. Do not use it in or near a washtub, sink, pool, standing water, bathtub, or anyplace where the likelihood of water mixing with electricity is present.

6.Clean only with a clean dry cloth.

7.Do not locate your ACT-18X in an area which has limited or very poor ventilation. Obstructing the fan intake, outlet or the heat sink will likely

cause the product to overheat and shut down.

8.Do not install the ACT-18X near any heat sources such as radiators, stoves, portable electric heaters or other devices that produce significant amounts of heat. If you do, it could cause the product to overheat and shut down.

9.Do not touch the amplifier heat sink with an ungloved or unprotected hand while or shortly after the ACT-18X has been operating. The heat sink may get hot during operation.

10.Do not attempt to defeat the safety purpose of the AC cord’s polarized grounded plug. If the provided plug does not fit your outlet, hire an electrician to replace the obsolete outlet.

11.Protect the AC mains power cord from being damaged.

12.SERVICING - The user should not attempt to repair a damaged or inoperable ACT-18X other than by replacing a blown AC mains fuse or a damaged detachable power cord. DO NOT TOUCH A DAMAGED POWER CORD IF IT IS PLUGGED INTO AC MAINS POWER!!!!!

13.Turn off and unplug the ACT-18X when not in use except during a lighting storm. A lightning strike on the AC line equipment is plugged into could cause electrocution to those in contact with that equipment. This is why your ACT-18X comes with a 3-prong power cord. The third prong (Earth ground) is to prevent such harm. Should you believe an electrical storm to be imminent, then it would be wise to unplug the ACT-18X BEFORE the storm approaches.

WARNING:

To reduce the risk of fire or electrical shock, do

not expose this system to rain or moisture

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

15.Servicing may be required when the ACT-18X has been damaged. If any of the following conditions listed below has occurred, please turn off and unplug the ACT-18X and seek the help of qualified service personnel. The following conditions all require service:

1)The power-cord or plug is damaged.

2)Objects have fallen into, or liquid has been spilled into the amp.

3)The ACT-18X has been exposed to significant moisture such as rain or fog and or there is present condensation inside the amplifier due to weather conditions. (If there is condensation on the outside of the heatsink, it is safe to assume the condensation is present inside as well.)

4)The unit is not operating normally.

6)The unit has been dropped with significant force and is not operating normally.

INSIDE THIS INSTRUCTION MANUAL
Important Safety Instructions / Specifications	2
Set-up Information	3
Subwoofer Control Panel Features	4-5
Connection Diagrams	6-7
Warranty Information	7

AMPLIFIER SPECIFICATIONS:

υ1200-watt Digital Amplifier with Voltage Tracking Power Supply

υ1200 watts @ 4 Ohms

υ800 watts @ 8 Ohms

υBuilt-in compressor-limiter

υBuilt in 24db/octave Crossover

υCrossover Frequency: 120 Hz @ 24db/octave

υSubsonic Filter: 32 Hz High Pass (18 db/octave)

υNominal Loudspeaker Impedance (each subwoofer): 8 Ohms

υMinimum Load Impedance: 4 Ohms (One active and one passive sub)

υMinimum Power Consumption (with no signal input) 20 watts

υPower Requirements: Up to 12 Amps @120v@60Hz

υXLR Balanced Inputs

υXLR Full Range Outputs

υXLR Balanced High Pass Outputs

υ0-180° phase switch

υSpeakon Style Speaker Output Connector for connecting a passive Sub (SP-18XS)

υThermal & Short Circuit Protection

υSignal sensing circuitry with LED indicator

LOUDSPEAKER FEATURES:

υPower handling of 1200 Watts RMS, 2400 Watts peak

υSensitivity: 102 dB @ 2.83V @ 1 Meter

υPeak SPL: 132 dB @ 1 Meter

υ4-layer, 4 Inch Diameter Voice Coil

υExtra durable non-press paper cone

υHeavy duty Polyester-Cotton double spider for great long term mechanical stability

υMagnetically optimized forged T-yoke with deep bump for high excursions

υUndercut pole piece for lower distortion and better mechanical clearance

υDouble thick Fiberglass Voice coil former for incredible rigidity at the driving point

υExtreme high temperature enamel and adhesive used on voice coil wire

υPrecision machined low-carbon steel magnetic circuit

υSuper duty polyester-cotton accordion edge surround

υDouble spiders to afford superior protection from bottoming and rocking

CABINET FEATURES:

υSuperior grade of 13-ply Baltic Birch

υHeavy duty scratch resistant durable black paint finish.

υ16-Gauge perforated steel grille for maximum protection

υ2 & 3/8” diameter steel pole-mount cup.

υFlared ports for highest available output without port noise

υDimensions (W) x (H) x (D): 24” x 33” x 22”

υWeight: 110lbs

WARNING! THE ACT-18X CABINET HAS NO RIGGING POINTS. IT IS NOT SUITABLE FOR FLYING. NEVER ATTEMPT TO SUSPEND THIS CABINET BY ITS HANDLES. DOING SO COULD RESULT IN INJURY OR DEATH!

ACT-18X specifications

ETI Sound Systems, INC introduces the ACT-18X, a powerful subwoofer that redefines performance in the world of sound reinforcement. Designed for professional applications, the ACT-18X stands out for its exceptional acoustical precision and robust construction, making it an ideal choice for venues ranging from concert halls to outdoor events.

At the heart of the ACT-18X is a high-efficiency 18-inch neodymium woofer, designed to deliver deep, thunderous bass with minimized distortion. This driver is engineered to handle high power, enabling the subwoofer to produce a maximum sound pressure level that surpasses many competitors in its class. Coupled with a custom-designed horn-loaded enclosure, the ACT-18X optimizes sound projection while maintaining clarity, providing an immersive listening experience.

The ACT-18X incorporates advanced DSP (Digital Signal Processing) technology, allowing for precise tuning and equalization. Users can access various presets tailored for different environments, ensuring optimal performance regardless of the venue. This technology also facilitates effective crossover management, seamlessly integrating the subwoofer with full-range systems for a cohesive sound.

Durability is another key feature of the ACT-18X. Its rugged plywood construction, reinforced with internal bracing, ensures that the cabinet can withstand the rigors of touring and heavy usage. The enclosure is finished with a tough, weather-resistant coating, providing additional protection during outdoor events. The subwoofer also includes integrated fly points and caster wheels, enhancing its portability and ease of setup.

Connectivity is simplified with multiple input and output options, including Neutrik connectors, which ensure a secure and reliable signal path. The ACT-18X can be utilized in a variety of configurations, including single-unit setups, horizontal or vertical stacking, and integration into larger arrays, making it highly versatile for sound professionals.

In summary, the ACT-18X from ETI Sound Systems, INC is a premier subwoofer tailored for serious sound reinforcement applications. With its powerful 18-inch driver, advanced DSP capabilities, durable design, and flexible connectivity options, this subwoofer is built to deliver outstanding performance, making it a vital component of any professional audio setup. Whether for concerts, festivals, or events, the ACT-18X promises to elevate the audio experience to new heights.