QSC CX302 User Manual
Also see for CX Series: User manualUser manualOwner's manualTechnical & service manualService manual
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11ENTD-000077-00-KGain ControlsRefer to Figure 22 and Figure 23.The Gain controls are recessed and can be adjusted with a small screwdriver or flattool. If desired, the Gain Control Security Cover can be installed to prevent changesto the installer's settings.Turn the gain controls clockwise to increase gain and counter clockwise to decreasegain. The maximum voltage gain of the amplifier varies depending on the modeldesignation. Maximum voltage gain for each model is shown on the front panellabel in parentheses adjacent the 0dB attenuation setting.The Gain controls are marked in dB of attenuation. There are 21 detents forrepeatable adjustments. The upper 14 steps are about 1 dB each, and settings shouldnormally be made within this range. The range below -14 dB should not be used fornormal program levels, as the input headroom could be exceeded, but can be usedfor testing at reduced levels. At the minimum setting, the signal is completely cut off.Gain Control Security PlateThe cover blocks access to the Gain settings. The LED indicators are still visible tomonitor the system's operation.1. Use a 9/64" or 3.5 mm hex driver to loosen the screw several turns. Do not remove it completely.2. Slide the right end of the cover under the loosened screw.3. Insert the left end tabs into the last row of ventilation slots, and slide the panel fully to the right. It should lock into the slots.4. Confirm that the LED's are visible through the cover. Tighten the hex screw carefully.— Figure 24 —Two-Channel Models— Figure 22 —Four-Channel Models— Figure 23 — |
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