Features - B-52 ACTPRO12M Instruction Manual

POWERED LOUDSPEAKER FEATURES
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 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)
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
COMPONENTS
• Compression Driver:
o Celestion 1"-exit with PETP film diaphragm
• Horns:
o 90 x 40 constant directivity horn
0 0
(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)
THE BEAUTY OF POWER
• Left and Right balanced XLR high-pass outputs
on ACTPR018S Sub
• 0-180
0
• 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
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.
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 Warnecke
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
B-52 ACTPRO Active Systems - Instruction Manual
Phase switch on ACTPRO18S Sub
ACTPRO
scratch
TM
5