B-52 Pro Audio Now Available @ Sweetwater Sound Inc.

ACTPRO-18S HD

1000-WATT - 18" FRONT LOADED ACTIVE SUBWOOFER
    Featuring a 4” voice coil, an 18” Celestion® cast frame woofer produces thunderous low end with defined articulation. A convection cooled, 1000W Class-G amplifier, features a stereo crossover with high pass outputs, clipping protection, thermal limiting, and an integrated BBE® Sonic Maximizer. Connect any full range cabinet to the balanced High-Pass outputs and process your entire system through the BBE˚. Add any ACTPRO-12, ACTPRO-12M, or ACTPRO-15 atop using the 1.5” diameter pole mounting cup and optional 22” mounting pole. Accented in a durable, black HiFiDeco painted finish, the 3/4” birch plywood construction produces tight low end. Detachable 3” casters are included for easy load-ins.

    Superior
    grade
    plywood
    Detachable
    3"
    Casters


    Product Features

    • 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 low frequency channel
    • Subsonic filter: 12dB/octave
    • Built-in compressor/limiter
    • Balanced XLR input (Left and Right on ACTPRO18S Sub)
    • Balanced XLR full-range output (Left and Right on ACTPRO18S Sub)
    • Left and Right balanced XLR high-pass outputs on ACTPR018S Sub
    • 0-1800 Phase switch on ACTPRO18S Sub
    • 100Hz 18dB/octave low cut switch on Full Range models
    • 3rd order electronic crossover on ACTPRO18S
    • 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

    CLASS G AMPLIFIER FEATURES

    • 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
    • Subsonic filter: 12dB/octave
    • Built-in compressor/limiter
    • Balanced XLR input (Left and Right on ACTPRO18S Sub)
    • Balanced XLR full-range output (Left and Right on ACTPRO18S Sub)
    • Left and Right balanced XLR high-pass outputs on ACTPRO18S subwoofer
    • 0-1800 Phase switch on ACTPRO18S
    • 100Hz 18dB/octave low cut switch on full range models
    • 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

    Cabinet Features

    • Made in U.S.A. using advanced CNC routers
    • 5/8” birch plywood construction (ACTPRO12M, ACTPRO15, ACTPRO1515)
    • 3/4” birch plywood construction (ACTPRO18S)
    • Main & monitor sitting positions (ACTPRO12M)
    • Reinforced internal bracings
    • Environmentally friendly WarneckeTM scratch resistant black paint finish
    • 16-gauge wrap-around steel grilles
    • Metal handles and rubber feet
    • Rubber strips (ACTPRO12M)
    • Metal pole mounting cup (ACTPRO1515 excluded)
    • Front logo illuminated with blue LED

    Loudspeaker Components

    • Compression Driver
      Celestion 1”-exit with PETP film diaphragm
    • Constant Directivity Horns
      90 x 40 constant directivity horn (ACTPRO15 & ACTPRO1515)
    • Conical wave guide (ACTPRO12M)
    • Low Frequency Transducers
      Vented magnet assemblies for advanced cooling
    • High temperature copper-wound voice-coil on polyamide former for increased reliability
    • Celestion SP-1200 (ACTPRO12M)
    • Celestion SP-1500 (ACTPRO15 & ACTPRO1515)
    • Proprietary SP-1804 cast frame subwoofer (ACTPRO18S)

    PETP-Film diaphragm compression driver

    • Sophisticated computer modeling was used to optimize the magnetic and acoustic design of.
    • these ferrite magnet compression drivers to achieve outstanding performance and reliability.
    • A matched wave front phase corrector produces a perfectly coherent sound wave at the horn throat, for a detailed and dynamic mid and high frequency performance.
    • The polyamide-insulated, copper-clad aluminum voice coil is edge-wound on a glass fiber former resulting in lower distortion and superior power to weight ratio.
    • A one-piece, PETP film diaphragm and surround optimizes energy transfer for greater efficiency.
    • The unique patented clamping system contributes directly to low distortion performance while improving the lower mid-band response.