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B-52 Act Pro12M 500-Watt 12″ 2-Way — Bi-Amped Main/MonitorSpeaker

  • Features rugged birch plywood construction, durable, black Warnecke® paint finish and 16-gauge wrap-around steel grilles.
  • Custom Celestion loudspeakers and compression drivers are used in all full-range models.
  • Designed to withstand abuse of the road.

 

At a Glance

 

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. Fuelled 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.

 

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

Specifications

 

Configuration 12” 2-Way multipurpose powered loudspeaker
Transducers:
Low Frequency
High Frequency
SP-1200 – 12” speaker with 2.5” voice coil
COMP-4-CLB – PETP film compression driver with 1.75” voice coil
LF Magnet Weight 42 oz
LF Magnet Structure Weight 7 lbs.
Frequency Range 50 Hz – 20 kHz
Frequency Response 58 Hz -18 kHz
High Frequency Dispersion 75º conical
Power Output LF: 270Wrms Class G
HF: 80Wrms Class AB+B
Maximum total burst power* 500W
Input Impedance 20 kOhm Balanced
10 kOhm Unbalanced
Electronic Crossover 4th order
Controls Level knob
Low-cut filter switch
Ground lift switch
Power switch
AC fuse
115/230V switch
Indicators Power
Protect
Limit
Signal
Cooling
Amplifier Protection
Convection
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
Current cons. @ 115/230 Vac
(1/8 power pink noise)
1.7A / 0.85A
Connectors Balanced female XLR input
Balanced male XLR link output
Input Sensitivity ** 775mV (0dBu)
Enclosure Black WarneckeTM painted birch plywood
Hardware Metal handles
Rubber feet / Rubber strips
Pole mounting cup
Grille Powder coated 16 gauge steel
Dimensions 26.5” H x 16.5” W x 16” D
(673mm x 419mm x 406mm)

 

 

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