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B-52 ACTPRO-18S

Single 18" Powered Subwoofer with 700 Watt Bi-Amp Amplifier & Built-In Compressor/Limiter

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B-52 ACTPRO-18S Powered Subwoofer

The new ACTPRO Series is an advanced line of made in the USA powered loudspeaker systems that offer the sonic accuracy, power and reliability demanded by today’s professional performers. Fueled by B-52’s ultra-efficient Class-G amplifiers, ACTPRO systems deliver rich, clear sound at extreme SPLs. ACTPRO amplifiers employ sophisticated circuitry including acoustically tuned 4th order crossovers, four stages of equalization, a built-in intelligent compressor/limiter and short circuit/over-current protection. An extra high current output stage allows for uninterrupted extended play without risk of thermal shutdown. ACTPRO full-range amplifiers are bi-amped with fully discrete output stages.

The ACTPRO18S subwoofer features a built-in third-order crossover with High-Pass and Full-Range outputs, allowing easy expansion of your ACTPRO system. All ACTPRO cabinets are built in the USA at our state-of-the-art Los Angeles manufacturing facility. Each model features rugged birch plywood construction, durable, black Warnecke paint finish and 16-gauge wrap-around steel grilles, all designed to withstand the abuse of the road. Custom Celestion loudspeakers and compression drivers are used in all full-range models. The ACTPRO12M is designed to be used as a main speaker or sit as a dedicated stage monitor. The powerful ACTPRO18S 18” subwoofer includes detachable 3” casters.

Product Features
  • Single 18" Powered Subwoofer
  • Power Handling
    • RMS: 700 watts
  • Proprietary SP-1804 cast frame subwoofer
  • Bi-Amp design with discrete output stage for both the woofer and compression driver
  • 4th Order electronic X-over and multi-stage custom equalization
  • Proprietary efficient class-G amplification on LF channel
  • Balanced XLR input
  • Balanced XLR full-range output
  • Left and Right balanced XLR high-pass outputs
  • 0-180° Phase switch
  • Subsonic filter: 12dB/octave
  • Built-in compressor/limiter
  • Ground lift switch
  • Full thermal & short circuit protection
  • Large heatsink with convection cooling
  • Oversized toroidal transformer
  • LEDs for Power, Protect, Limit and Signal
  • 115V/230V 60Hz/50Hz selector switch
  • 3/4” birch plywood construction
  • Environmentally friendly WarneckeTM scratch resistant black paint finish
  • 16-gauge wrap-around steel grilles
  • Metal handles and rubber feet
  • Front logo illuminated with blue LED
  • Vented magnet assemblies for advanced cooling
  • High temperature copper-wound voice-coil on polyamide former for increased reliability
  • 1-year Manufacturer's warranty

Subwoofer Specifications

Power Configuration
PA Subwoofers can be active or passive. Active subwoofers have a built-in amplifier that is designed to power the subwoofer, Passive subwoofers require an external amplifier to power the subwoofer.
Active
Number of Drivers
This is the total number of low-frequency drivers in the PA Subwoofer enclosure.
1
Driver Size
This is the size of the low-frequency driver(s) in the PA Subwoofer.
18"
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
Not specified by manufacturer
Inputs
These are the types of input connections that the PA Subwoofer has.
XLR
Outputs
These are the types of outputs that the PA Subwoofer has. Outputs are typically found on active subwoofers that are capable of powering additional passive subwoofers/speakers.
XLR

Powered Subwoofer Specifications

Continuous Power
This is the amount of continuous power that the internal amplifier is designed to output to the PA subwoofer.
700 watts
Amplifier Class
This is the class of the built-in amplifier. An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.
G
Controls
These are the different amplifier controls and adjustments.
Phase Control

Case Specifications

Mounting Options
These are the different types of ways that the PA Subwoofer is able to be mounted. Most of these PA subwoofers are designed to be floor standing systems, however some of them can be mounted in other fashions.
Floor Standing
Convenience Features
These are some features of the PA Subwoofer that make moving it and using it easier.
Built-in Handles
Caster Wheels
Integrated Mounting Pole-Cup
Enclosure Material
This is the type of material that the PA Subwoofer is made out of.
Solid Plywood with Durable Finish
Grille
If the PA Subwoofer includes a grille, it will be indicated here.
Yes

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

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Product Summary

Manufacturer

Model Number

ACTPRO-18S

UPC

763815125633

Weight

95.00lbs

Internal SKU

actpro18s

Internal Product ID

32418

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: B-52 ACTPRO-18S