Simple Division. You do the math. Any way you add it up, Rane makes the finest
crossovers. There is no simpler or smarter way to triamp your system
than with the SAC 23 Stereo Active Crossover.
The SAC 23
employs state-variable 4th-order Linkwitz-Riley filter alignments to
minimize phase difficulties in the critical crossover region. Simply
put, a Linkwitz-Riley crossover exhibits identical phase
characteristics on its Low pass and High pass Outputs. This
characteristic guarantees in-phase outputs at all frequencies. In-phase
outputs are mandatory for proper acoustic summing of common signals
from adjacent drivers in the crossover region. An added benefit of this
topology is steep 24 dB per octave rolloff slopes. A slope of this
magnitude guarantees drivers designed to produce a specific range of
frequencies, and no more, will not be driven past their limits, thereby
minimizing distortion and driver fatigue.
The SAC 23 utilizes
31-position precision DC control voltage potentiometers to select the
Low/Mid and Mid/High Frequency points. This crossover circuit design
assures consistent accuracy from channel-to-channel and unit-to-unit.
This is a distinct advantage over continuously variable designs using
ganged potentiometers which can yield large variations in
The Mono Sub Output provides a
separate mono sum of the Left and Right Low Outputs. A 100 Hz low pass
filter may be activated for this Output. The Sub Output may be used
along with the Left and Right Low Outputs.
The Input Level
allows decreasing the overall sensitivity of the entire sound system,
including the mono subwoofer if one is used. The Low Level, Mid Level,
High Level and Mono Sub Output Level controls allow compensation for
sensitivity variations in amplifiers and drivers.
The SAC 23 features balanced XLR connectors that when properly connected, can drive long lines without fear of hum or noise.
Data Sheet (200k)
| Manual (400k)
| Schematics (200k)