User guide

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Manual-1

OPERATORS MANUAL

QUICK START

If this is your first equalizer, please do yourself and

your speakers a favor and read at least the first five pages.

“An ounce of prevention...,” and all that.

The MQ 302S is a stereo equalizer, so adjusting any

slider affects both channels simultaneously. Begin by

setting all sliders to their center detent (0 dB), and the

INPUT LEVEL to its center detent (0 dB). Try to make

more cuts than boosts. After equalizing, use the EQ switch

to compare equalized and non-equalized signal. While EQ

is switched to ACTIVE (out), adjust the INPUT LEVEL

to the same level as when EQ is switched to BYPASS

(in).

You may use either the XLR or ¼" connectors for

Inputs or Outputs. Connect only one INPUT type per

channel. The XLR and ¼" TRS inputs do not sum. You

may, however, use both types of OUTPUTS simulta-

neously if desired.

WEAR PARTS: This product contains no wear parts.

MQ 302S

STEREO GRAPHIC EQUALIZER

Summary of content (9 pages)

PAGE 1
OPERATORS MANUAL MQ 302S STEREO GRAPHIC EQUALIZER QUICK START If this is your first equalizer, please do yourself and your speakers a favor and read at least the first five pages. “An ounce of prevention...,” and all that. The MQ 302S is a stereo equalizer, so adjusting any slider affects both channels simultaneously. Begin by setting all sliders to their center detent (0 dB), and the INPUT LEVEL to its center detent (0 dB). Try to make more cuts than boosts.
PAGE 2
IMPORTANT SAFETY INSTRUCTIONS 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any ventilation openings. Install in accordance with manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, registers, stoves, or other apparatus (including amplifiers) that produce heat. 9.
PAGE 3
INPUT LEVEL control and indicators This controls the overall level. 0 dB gain is reached at the center detent with all sliders centered at their 0 dB detents. Set the INPUT LEVEL to give equal volumes with the EQ switched to ACTIVE or BYPASS, after setting the sliders (see EQ BYPASS switch below). Apply sufficient signal to the input to occasionally light the +4 dBu indicator. Flashing of the OL (overload) LED during peaks can be avoided by turning the INPUT LEVEL or boosted Filters down.
PAGE 4
POWER switch and LED Your basic, straightforward power switch. When the yellow LED is lit, the MQ 302S is ready to go. LEFT & RIGHT INPUTS LEFT & RIGHT OUTPUTS Use either the Balanced XLR or the Unbalanced ¼" TS jacks. Using both types of Outputs are permissible to drive two devices, such as an amplifier and a recorder. Choose between the balanced XLR or the balanced/unbalanced ¼" TRS jacks, but only use one.
PAGE 5
MQ 302S CONNECTION Exactly where you install your MQ 302S into a sound system significantly affects such things as noise, system headroom, compressor/limiter performance and other factors influencing overall sound quality. Both what and why you are equalizing determines where you install it. We’ll leave the when and who entirely up to you. WHAT AND WHY Tone contouring is accomplished mainly by ear. This you know how to do. Be careful though, not to introduce too much boost to the bass area.
PAGE 6
Figure 1. Stereo Biamp System with Equalizer the type of music and your audience. Fatten the bass, sweeten the highs, brighten the mids. Since you are starting from a “tuned” system, your ear will not be fooled into thinking bass is too high when actually mids are too low, or that highs are too weak when really the mids are too strong. Fact: analyzers don’t have good taste—people do.
PAGE 7
SOUND SYSTEM INTERCONNECTION Rane’s policy is to accommodate rather than dictate. However, this document contains suggestions for external wiring changes that should ideally only be implemented by trained technical personnel. Safety regulations require that all original grounding means provided from the factory be left intact for safe operation. No guarantee of responsibility for incidental or consequential damages can be provided.
PAGE 8
VARIOUS XLR & ¼" CABLE ASSEMBLIES Manual-7
PAGE 9
MOJO GLOSSARY balanced line The recommended method of interconnecting audio equipment. A balanced line requires three conductors: a twisted-pair for the signal (positive and negative) and an overall shield. The shield must be tied to the chassis at both ends for hum-free interconnect. bandwidth Abbr. BW The numerical difference between the upper and lower -3 dB points of an audio band. clipping What occurs when a unit tries to produce a signal larger than its power supply.