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OPERATORS MANUAL
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 on page Manual-11 and keep them as short as possible. This device uses low imped-
ance 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
(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-4 or 5. When turning on the system, switch on the power 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 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 subwoofer along with full-range cabinets
that have internal crossovers, set the 100 Hz FILTER to OUT, allowing the front panel FREQUENCY to control the
subwoofer crossover point. When used with biamp 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 22 almost does the job of a Stereo 3-Way crossover,
but without removing that awesome bass from the Left and Right Low Outputs.
WEAR PARTS: This product contains no wear parts.
STEREO 2-WAY ACTIVE CROSSOVER
SAC 22
Manual-1
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Summary of Contents for Rane SAC 22
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Page 1: Quick Start
When used with biamp 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 22 almost does the job of a Stereo 3-Way crossover, but without removing that awesome bass from the Left and Right Low Outputs. - Page 2 INPUT LEVEL control and indica- MONO SUB OUTPUT LOW LEVEL control tors LEVEL control This controls the level of signal This controls the overall level This controls the level of the going to the LOW OUTPUT jacks. without altering the relative settings of summed signals of the LEFT and Unity gain is reached at the “0 dB”...
- Page 3 10 feet in length. device uses low impedance balanced sends only the very lowest frequencies If you are feeding the SAC 22 from a line drivers. Do not connect the “+” or to the subwoofer. With the switch OUT, device that does not have balanced XLR “–”...
- Page 4 APPLICATION — PASSIVE 2-WAY WITH MONO SUB Use this configuration if you have full-range cabinets with passive crossovers built-in, i.e., no separate speaker inputs for the low and high drivers. Connect as shown for a mono subwoofer. Set the 100 Hz FILTER switch to the OUT position. The front panel LOW/HIGH frequency control determines the frequency division between the main cabinets and the mono subwoofer.
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Page 5: Operating Instructions
The LOW LEVEL, HIGH LEVEL and MONO SUB accommodate more gentle filter roll-offs. OUTPUT LEVEL controls allow you to compensate for The SAC 22 utilizes a 31-position precision DC control sensitivity variations in amplifiers and drivers. Do not use voltage potentiometer to select the LOW/HIGH FRE- these to adjust overall system sensitivity unless you plan to QUENCY point. - Page 6 LEVEL controls, turning these down to get a 0 dB reading on microphone placement to keep the room acoustics out of the the meter. picture as much as possible. ©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL (425)355-6000 FAX (425)347-7757 WEB http://www.rane.com Manual-6 104967...