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to the desired frequency or position. 13. Once the system is powered up, set the volume control on the head unit to about the 2 o'clock position, and then set all the amplifiers' level controls for maximum output level. 14. Further fine tuning of the various controls may be necessary to obtain the desired results. jdanzar Vibe Owner’s Manual - 5 Features and Controls VIBE700.1D / 1000.1 D / 1800D / 3100D / 4KD Level Sub Low Phase Bass sonic Pass shift Boost Cx) fx) Gc) VI 00 X) PWR PR