Owner`s manual
PAGE 20 Community Solutions™ Owner’s Manual
9 OPERATING REQUIREMENTS
These sections define the operating requirements for the various controllers and modes of operation
for both the SLS full-range loudspeakers and SBS subwoofers.
9.1 Operating Requirements Using Electronic Controllers
Refer to FIGURES 2 and 3 for block diagrams of the acceptable configurations.
9.1.1 SLS PASSIVE Mode with AN Electronic Controller
In PASSIVE mode one amplifier channel is required along with a high-pass filter to prevent frequencies
below the operating ranges from overdriving and possibly damaging the LF drivers.
TABLE 2 shows the recommended amplifier sizes for the SLS loudspeakers used in PASSIVE mode.
MODEL
IMPEDANCE
LOUDSPEAKER
PROGRAM
RATING
REC. POWER
AMP RANGE
SLS915 8 Ohm 300W 250W to 400W
SLS918 8 Ohm 500W 400W to 600W
SLS920 8 Ohm 500W 400W to 600W
SLS960 8 Ohm 1000W 800W to 1250W
SLS980 8 Ohm 1000W 800W to 1250W
Table 2: Amplifier Power for SLS in PASSIVE Mode with
Electronic Controllers
9.1.2 SLS BIAMPLIFIED Mode with Electronic System Controller
In BIAMPLIFIED mode two amplifier channels are required: one for the low frequency (LF) section and
one for the high frequency (HF) section of the loudspeaker. An electronic crossover is required to
divide the input signal to the amplifiers into low frequency and high frequency ranges for the LF and
HF sections of the loudspeaker. Also required is a high-pass filter for the LF section to prevent
frequencies below its operating range from overdriving and possibly damaging the LF drivers.
TABLE 3 shows the recommended amplifier sizes for each section (LF and HF) of the SLS loudspeakers
used in BIAMPLIFIED mode.
MODEL
LF
IMPEDANC
E
LF
PROGRAM
RATING
REC. LF POWER
AMP RANGE
HF
IMPEDANC
E
HF
PROGRAM
RATING
REC. HF
POWER AMP
RANGE
SLS915 8 Ohm 300W 250W to 400W 8 Ohm 50W 40W to 75W
SLS918 8 Ohm 500W 400W to 600W 8 Ohm 300W 250W to 400W
SLS920 8 Ohm 500W 400W to 600W 8 Ohm 200W 150W to 250W
SLS960 8 Ohm 1000W 800W to 1250W 8 Ohm 200W 150W to 250W
SLS980 8 Ohm 1000W 800W to 1250W 8 Ohm 200W 150W to 250W
Table 3: Amplifier Power for SLS in BIAMPLIFIED Mode with Controller