Directed Audio 6550 - Top Panel Controls; Input Gain Adjustment; Crossover Selection Switch; Crossover Frequency Adjustment

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© 2002 Directed Electronics, Inc
TOP PANEL CONTROLS
LPF HPF
FLAT
BASS EQ
OFF ON
FREQ FREQ FREQ
50Hz 50Hz 50Hz500Hz 500Hz 500Hz
LPF LPFHPF HPF
FLAT FLAT
5+6
GAIN
1+2 3+4
5+6
INPUT INPUT
3+4 5+6
GAIN GAIN
MIN MIN MINMAX MAX MAX
OFFOFF ONON
FIGURE 3—AMPLIFIER CONTROLS TOP
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1.
IInnppuutt GGaaiinn AAddjjuussttmmeenntt
- Controls
amplifier sensitivity and is used to
match the input level of the amplifier
to the output level of the signal
source.
2.
CCrroossssoovveerr SSeelleeccttiioonn SSwwiittcchh
-
Controls the type of filter for the on-
board active crossovers. FLAT does
not attenuate any frequencies and is
for full-range speaker systems. HPF
attenuates low frequencies and is
used for mid-range speakers and
tweeters. LPF attenuates high
frequencies and is typically used for
subwoofers.
3.
CCrroossssoovveerr FFrreeqquueennccyy AAddjjuussttmmeenntt
-
Adjusts the crossover point for the
on-board active crossovers.
4.
BBaassss EEQQ SSwwiittcchh -
Adds 8 db of addi-
tional boost to channels five and six
output when active.
5.
IInnppuutt PPaarraalllleell SSwwiittcchh
- Controls the
input signal to the indicated channels.
If the 3+4 switch is ON, channels
three and four will derive their signal
from channels one and two RCA jacks
and no input is needed. If the 3+4
switch is OFF, channels three and four
RCA jacks must have input. If the
5+6 switch is ON, channels five and
six will derive their signals from chan-
nels one through four RCA jacks and
no input is needed. If the 5+6 switch
is OFF, channels five and six RCA
jacks must have input.
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3
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