1993 Chevrolet Corvette Owner's Manual - Page 156

... ... . :... I AMIFM Stereo with CassettelCD Player (Delco-Bose@ Musk System) SCV/VOL: The inside lcnob turns the unit on andoff when the ignition is on and adjusts volume up ordown. SCV (Speed-Compensated Volume): This three-position control ring will automatically compensate for the increase in road noise levelsat higher speeds. At normal driving speed, set the volume control as desired. Switching to L (Low) or H (High) causes the volume to increase as your speed increases. The high positionwl give you a higher i l maximum volumethan the low position. Thehigh position will also increase the volume faster.Use the low position when driving with roof the panel on, or the convertible top up and the windows closed. The high position is best when driving with the panel roof off, or the convertible top down and the windows open. SCV will be indicated on the displaywhen on. This feature can beturned off by turning the control ring to the OFF position. FADE Adjusts the fronthear speaker balance. There is control to adjust no for left/right speaker balance because none is required.