Lexicon SDP-40 - Manual (Page 72)

TREBLE (-6.0 to +6.0dB)
TREBLE controls the amount of boost or cut applied to the FRONT
L/R and CENTER outputs. When TREBLE is selected, a horizontal
graph will appear on the screen below the parameter. This graph
illustrates the position at which the current setting falls within the
-6.0 to +6.0dB parameter range. Press the up and down MENU
arrows to increase and decrease the setting in 0.5dB increments.
Press the left MENU arrow to close the graph and return to the
AUDIO CONTROLS menu.
The graph pictured below shows the frequency response of all
TREBLE settings.
4-3
The AUDIO CONTROLS Menu
SDP-40
TILT EQ (-3.0 to +3.0dB)
TILT EQ controls the amount of tilt equalization applied to the
FRONT L/R, CENTER, SUBWOOFER L/R, and LFE outputs. When
TILT EQ is selected, a horizontal graph will appear on the screen
below the parameter. This graph illustrates the position at which
the current setting falls within the -3.0 to +3.0dB parameter range.
Press the up and down MENU arrows to increase and decrease the
setting in 0.5dB increments. Press the left MENU arrow to close the
graph and return to the AUDIO CONTROLS menu.
TILT EQ affects the entire frequency spectrum with a hinge point at
1kHz. As it is increased, frequencies above 1kHz are boosted, while
frequencies below 1kHz are simultaneously cut. As it is decreased,
frequencies above 1kHz are cut, while frequencies below 1kHz are
simultaneously boosted. The graph pictured below shows the
frequency response of all TILT EQ settings.
TREBLE AUDIO CONTROLS TILT EQ AUDIO CONTROLS
10 20 50 100 200 500 1k 2k 5k 10k 20k
Hz
+0.0
+6.0
+5.5
+5.0
+4.5
+4.0
+3.5
+3.0
+2.5
+2.0
+1.5
+1.0
+0.5
+0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-4.0
-4.5
-5.0
-5.5
-6.0
10 20 50 100 200 500 1k 2k 5k 10k 20k
Hz
-3.0
-2.8
-2.6
-2.4
-2.2
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
+0.0
+0.2
+0.4
+0.6
+0.8
+1.0
+1.2
+1.4
+1.6
+1.8
+2.0
+2.2
+2.4
+2.6
+2.8
+3.0
+3.0
+2.8
+2.6
+2.4
+2.2
+2.0
+1.8
+1.6
+1.4
+1.2
+1.0
+0.8
+0.6
+0.4
+0.2
+0.0
-0.2
-0.4
-0.6
-0.8
-1.0
-1.2
-1.4
-1.6
-1.8
-2.0
-2.2
-2.4
-2.6
-2.8
-3.0