B-52 ACTPRO-18S

B-52 ACT Pro 18S (B52 ACTPRO 18S)

NEW - BETTER SPEAKER, LOWER PRICE. IT'S A NO-BRAINER!

B-52 ACT-PRO 18

18" Powered Subwoofer
700 Watt RMS Powered Sub
(1400 Watt Program Power / 2800 Watt IP Power)

Contains: B-52 18-190S

Configuration 18" powered subwoofer - 700W
Transducers:
Low Frequency SP-1804 - 18" cast framed subwoofer with 3" voice coil.
High Frequency N/A
LF Magnet Weight 100 oz
LF Magnet Structure Weight 17 lbs.
Frequency Range 35 Hz - 140 Hz
Frequency Response 46 Hz - 100 Hz
High Frequency Dispersion N/A
Maximum peak SPL 129 dB
Output Power LF: 700W Class G

Input Impedance 20 kOhm Balanced
10 kOhm Unbalanced
Elctronic Crossover 3rd order Butterworth @ 100 Hz
Low Cut Filer (switchable)
Controls Level knob
Phase switch
Ground lift switch
Power switch
AC fuse
115/230V switch
Indicators Power
Protect
Limit
Signal
Cooling Convection
Amplifier Protection Short circuit
Clip-limiter
Overheat mute
SOA output stage
Driver DC protection
Subsonic filter
Turn-on mute and soft ramp
Turn-on inrush current limiting
Power Consumption @ 115V Vac
(1/8 power pink noise) 300VA
Connectors Balanced female XLR L&R inputs
Balanced male XLR L&R link outputs
Male XLR L&R High-pass outputs
Input Sensitivity ** 775mV (0dBu)
Enclosure Black Warnex® painted birch plywood
Hardware Metal handles
Rubber feet
Pole mounting cup
3" Detachable casters
Grille Powder coated 16 gauge steel
Dimensions 26.5" H x 23.5" W x 23" D
(673mm x 597mm x 584mm)
Weight 97 lbs. / 44.1 kg

 

CLASS G AMPIFIER 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 ACTPRO118S Sub)
• Balanced XLR full-range output (Left and Right on ACTPRO18S Sub)
• Left and Right balanced XLR high-pass outputs on ACTPRO18S Sub
• 0-1800 Phase switch on ACTPRO18S Sub
• 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

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 polyimide-insulated, copper-clad aluminum voice coil is edge-wound on a glass fiber former resulting in a 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 a low distortion performance while improving the lower mid-band response.

COMPONENTS
• Compression Driver:
o Celestion 1”-exit with PETP film diaphragm
• Horns:
o 900 x 400 constant directivity horn (ACTPRO15 & ACTPRO1515)
o Conical wave guide (ACTPRO12M)
• LF Transducers :
o Vented magnet assemblies for advanced cooling
o High temperature copper voice coil wound on polyamide former for increased reliability
o Celestion SP-1200 (ACTPRO12M)
o Celestion SP-1500 (ACTPRO15 & ACTPRO1515)
o Proprietary SP-1804 cast frame subwoofer (ACTPRO18S)

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