Rane SAC 22 2003 version - Manual (Page 3)

Manual-1
QUICK START
Whoa, hold on there. Even if you don’t read manuals as a matter
of principle, at least read this section to avoid hurting yourself or
your equipment.
Connect the SAC 22 with the power off. Balanced XLR
cables are recommended, but if you must convert to ¼" connec-
tors, buy or make a cable like the ones in the included Sound
System Interconnection RaneNote and keep them as short as pos-
sible. This device uses low impedance balanced line drivers. Do not
connect the “+” or “–” output pins to ground, as this may cause the
power supply to shut down. For unbalanced use, leave the unused
output pin (“+” or “–”) unterminated.
Consult the speaker manufacturer for the correct crossover
frequency setting. As rugged as some drivers are, many (espe-
cially compression drivers) will not accept frequencies outside of
their normal range without producing distortion and possibly
self-destruction.
With all equipment turned off and LEVEL controls down,
begin making connections to the system as shown on page Man-
ual-4 or 5. When turning on the system, switch on the power
WEAR PARTS: This product contains no wear parts.
OPERATORS MANUAL SAC 22
STEREO 2-WAY ACTIVE CROSSOVER
Hz
STEREO 2-WAY
CROSSOVER
3.15k 100
160
125 2.5k
1.6k
1.25k
400 630 800
200
315
10 0
2
4
8
6
10 0
2
4
8
6
10 0
2
4
8
6
10 0
2
4
8
6
0 dB 0 dB 0 dB
LOW
LEVEL
MONO SUB
LEVEL +4 dBu OL
INPUT
LEVEL LOW / HIGH POWER
HIGH
LEVEL
SAC 22
amplifiers last. Now, feed the SAC 22 some program material.
Start by turning up the LOW LEVEL and HIGH LEVEL to
the 0 dB marks. Slowly increase the INPUT LEVEL, even if
it goes all the way to 10, so the +4 dBu (green) light blinks oc-
casionally and the OL (red) light stays out. This delivers the best
signal-to-noise performance.
The MONO SUB OUTPUT is a sum of the Left and
Right Low Outputs. The MONO SUB LEVEL adjusts only
this Output and is not affected by the LOW LEVEL control..
When using a single subwoofer along with full-range cabinets
that have internal crossovers, set the SUB 100 Hz FILTER to
OUT , allowing the front panel LOW / HIGH to control the
subwoofer crossover point. When used with biamp cabinets and
a subwoofer, set the SUB 100 Hz FILTER switch to IN to allow
only frequencies below 100 Hz at this output jack. This way, the
SAC 22 almost does the job of a Stereo 3-Way crossover, but
without removing that awesome bass from the Left and Right
Low Outputs.