5
As with other U.S. Amps products, our crossovers feature an isolated input and amplifier section
to keep the system free of noise. It is important to ground the crossover input for proper
operation. Do not use a floating ground isolator with this or any other U.S. Amps product.
As with other U.S. Amps products, our crossovers feature an isolated input and amplifier section
to keep the system free of noise. It is important to ground the crossover input for proper
operation. Do not use a floating ground isolator with this or any other U.S. Amps product.
the RBG cable is connected. Use a common screwdriver tip or something like it to tighten the
RBG knob.
The US-X3 is a three-way unit that further divides the frequencies for three amplifiers. The features
and operation are similar to the others with the addition of the third mid range channel, and its
gain. There are separate high, mid and low mid frequency controls, and the mid range output
can be inverted 180 degrees with a switch to correct for real-life speaker placement.
the RBG cable is connected. Use a common screwdriver tip or something like it to tighten the
RBG knob.
The US-X3 is a three-way unit that further divides the frequencies for three amplifiers. The features
and operation are similar to the others with the addition of the third mid range channel, and its
gain. There are separate high, mid and low mid frequency controls, and the mid range output
can be inverted 180 degrees with a switch to correct for real-life speaker placement.
US-X3
US-X3
o
POWER
LO
W
P
ASS
FREQUENC
Y
HIGH
MID
FREQUENC
Y
L
O
W
MID
FREQUENC
Y
HIGH
P
A
S
S
FREQUENC
Y
BA
S
S
BOOST
L
O
W
G
AIN
MID
G
AIN
HIGH
G
AIN
GROUND
POWER
REMOTE
AMP
REMOTE
LO
W
OUTP
UT
MID OUTP
UT
HIGH OUTP
UT
LO
W
P
ASS
INP
UT
MAIN INP
UT
o
M
I
F
ADE N
LORIDA,
U. S. A.
M
I
F
ADE N
LORIDA,
U. S. A.
MODEL US-X3
HAND-CR
AFTED
IN
FL
ORID
A,
U.
S.
A.
HAND-CR
AFTED
IN
FL
ORID
A,
U.
S.
A.
HAND-CR
AFTED
IN
FL
ORID
A,
U.
S.
A.
HAND-CR
AFTED
IN
FL
ORID
A,
U.
S.
A.
HAND-CR
AFTED
IN
FL
ORID
A,
U.
S.
A.
HAND-CR
AFTED
IN
FL
ORID
A,
U.
S.
A.
GROUND
To the Vehicle
Chassis
GROUND
POWER
Fuse
at 3 Amps
POWER
REMOTE
Positive 12
Volt Trigger From Source
REMOTE
AMP REMOTE
Positive 12
Volt Trigger to Amplifiers
AMP REMOTE
POWER
LED
POWER
LED
HIGH
OUTPUT
0-9 Volts
HIGH
OUTPUT
LOW
OUTPUT
0-9 Volts
LOW
OUTPUT
MID
OUTPUT
0-9 Volts
MID
OUTPUT
BASS
BOOST
0 - 20Db
BASS
BOOST
LOW PASS FADER
Can be activated or
defeated with this switch
LOW PASS FADER
2-WAY / 3-WAY OPERATION
When used in the 2-Way mode
both the High and Mid Outputs
have Mid / High Output signals
adjustable from 50-500Hz via
the Low Mid Frequency Control
2-WAY / 3-WAY OPERATION
MIDRANGE PHASE INVERSION
Inverts the Midrange Output
phase 180 degrees to correct
for off-axis frequency response
MIDRANGE PHASE INVERSION
FREQUENCY
ADJUSTMENTS:
LOW PASS:
HIGH MID:
LOW MID:
HIGH PASS:
50Hz-500Hz
500Hz-5KHz
50Hz-500Hz
500Hz-5Khz
FREQUENCY
ADJUSTMENTS:
LOW PASS:
HIGH MID:
LOW MID:
HIGH PASS:
Source Unit
LOW PASS
OUTPUT
Adjustable
0-9 Volts,
50-500Hz
LOW PASS
OUTPUT
MID RANGE
OUTPUT
Adjustable
0-9 Volts,
50-500Hz
Low Mid
500-5KHz
High Mid
MID RANGE
OUTPUT
HIGH PASS
OUTPUT
Adjustable
0-9 Volts,
500-5KHz
HIGH PASS
OUTPUT
LOW PASS
FADER
MODE
PHASE
ON
OFF
2-WAY
3-WAY
0
180
SUBS
MID-BASS/
MIDS
MID-BASS/
MIDS
TWEETS
