Rodgers Allegiant 657, Owner'S Manual

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3) Rotate the ALPHA dial to change the amount of treble. A value of -15 cuts the treble
frequencies the most while a value of 15 boosts the treble the most. A value of 0 neither
boosts nor cuts the treble.
To select INT or EXT treble adjustment:
1) Turn the Select knob two clicks counter-clockwise so that the flashing cursor is on the word
INT or EXT.
2) Rotate the ALPHA dial to select INT or EXT. If you wish to change the treble of your new
selection, turn the Select knob
clockwise two clicks and turn the ALPHA dial to change the
numerical value of the treble.
Adjusting Bass
1) Press and hold the SET piston.
2) Rotate the Select knob counter-clockwise until INT/EXT BASS is shown in the display
window and the flashing cursor is on the numerical value next to the word BASS.
3) Rotate the ALPHA dial to change the amount of bass. A value of -15 cuts the bass the most
while a value of 15 boosts the bass the most. A value of 0 neither boosts nor cuts the bass.
To select INT or EXT bass adjustment:
1) Turn the Select knob one click counter-clockwise so that the flashing cursor is on the word
INT or EXT.
2) Rotate the ALPHA dial to select INT or EXT. If you wish to change the bass of your new
selection, turn the Select knob clockwise one click and turn the ALPHA dial to change the
numerical value of the bass.