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 23 with the
POWER
off
. Balanced XLR
cables are recommended, but if you must convert to ¼" connec-
tors, consult the RaneNote, “Sound System Interconnection,” in-
cluded with this booklet.
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 manufacturers for the correct crossover
FREQUENCY
settings. As rugged as some drivers are, many
(especially 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
Manual-6. When turning on the system, switch on the power
WEAR PARTS:
This product contains no wear parts.
OPERATORS MANUAL
SAC 23
STEREO 3-WAY ACTIVE CROSSOVER
INPUT
LEVEL
+4 dBu OL
LEVEL
MONO SUB
LEVEL
LOW
LEVEL
MID
LOW / MID
MID / HIGH
POWER
SAC 23
HIGH
LEVEL
0 dB
10
0
2
4
8
6
10
0
2
4
8
6
0 dB
10
0
2
4
8
6
0 dB
10
0
2
4
8
6
0 dB
STEREO 3-WAY
CROSSOVER
10
0
2
4
8
6
80
1k
100
125
160
800
630
500
200
315
250
400
7k
350
400
800
630
500
6.3k
85
950
5.0k
4.0k
3.15k
2.5k
1.25k 1.6k 2.0k
1.0k
Hz
Hz
amplifiers
last
. Now, feed the SAC 23 some program mate-
rial. Start by turning up the
LOW LEVEL, MID 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 occasionally 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 mono bass bin along with stereo mid- and high-
range cabinets, set the
100 Hz FILTER
to
OUT
, allowing the
front panel
FREQUENCY
to control the subwoofer crossover
point. When used with 3-way cabinets and a subwoofer, set the
100 Hz FILTER
switch to
IN
to allow only frequencies below
100 Hz at this output jack. This way, the SAC 23 almost does
the job of a Stereo 4-Way crossover, but without removing that
awesome bass from the Left and Right Low Outputs.
