User manual MACKIE QUAD COMP

[. . . ] QUAD COMP/GATE 4-CHANNEL DIGITAL COMPRESSOR/GATE OWNER'S MANUAL QUAD-COMP/GATE Important Safety Instructions 1. Install in accordance with the manufacturer's instructions. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not defeat the safety purpose of the polarized or grounding-type plug. [. . . ] EXP button This backlit button changes the gate to a downward expander when lit. When engaged, the RANGE [24] knob is disabled and the RATIO [19] knob is enabled. The ATTACK [21], RELEASE [22], and HOLD [23] knobs operate the same as in gate mode. Signals that are lower than the threshold level are decreased in level by an amount determined by the setting of the RATIO knob. Once the GATE [16] button has been pressed, the knobs operate as described below. Note: The gate is still in operation (at its last settings) working its magic on the audio, even if the GATE button is not selected. 18. THRESHOLD knob In gate mode, this knob adjusts the level below which attenuation begins. The threshold level can be adjusted from ­60 dBu to +20 dBu (fully clockwise). Signals below the threshold are reduced in level by an amount set by the RANGE [24] knob (or RATIO [19] if EXP [20] is pressed in). Signals above the threshold are not affected by the gate. 21. ATTACK knob In gate mode, this knob adjusts the amount of time for the gate to open and pass the signal through, once the signals move above the threshold level (after reduction has occurred). Use this knob to adjust the Attack time from 0. 1 ms to 300 ms (fully clockwise). Owner's Manual 13 QUAD-COMP/GATE 22. RELEASE knob In gate mode, this knob adjusts the amount of time for the gate to close and begin attenuation, after the signal drops below the threshold and the hold time has passed. Use this knob to adjust the Release time from 50 ms to 3 seconds (fully clockwise). 26. ON button This button engages or disengages the key filter circuit. This allows you to quickly compare the action of the key filter on gating. When this button is out, the key filter knobs will have no effect on the gate. 23. HOLD knob This adjusts the amount of time the gate stays open for, after the signal drops below the threshold, and before attenuation begins. Use this knob to adjust the Hold time from 0 ms to 5 seconds (fully clockwise). 27. HP FREQ knob The gate key filter high-pass filter employs a 12 dB per octave Linkwitz-Riley design. This knob allows you to adjust the key filter's cutoff frequency from 20 Hz to 5 kHz. Any frequencies lower than the setting will be attenuated, and play less part in the gating and noise reduction. [. . . ] The address of your closest authorized service center will be given to you by Technical Support. IMPORTANT: Make sure that the Service Request Number is plainly written on the shipping carton. LOUD Technologies reserves the right to inspect any products that may be the subject of any warranty claims before repair or replacement is carried out. LOUD Technologies may, at our option, require proof of the original date of purchase in the form of a dated copy of the original dealer's invoice or sales receipt. [. . . ]