Page 6
Load Impedance
All ARC Audio Amplifiers are designed as voltage-based
Power Amplifiers. This means, the amount of power
produced to the speaker is dependent on the impedance of
the connected speaker(s). Reducing the impedance of the
speaker(s) will increase the amount of power produced by the
amp, within certain design limits.
With respect to the X2 Series Monoblock amplifiers, your
installer may connect a subwoofer or combination of
subwoofers with a total combined impedance of no less than
1 Ohm.
The X2 1100.1 and X2 2500.1 include two positive and two
negative speaker terminals. These terminals are connected
together inside the amp. The amp sees the net load
connected to both terminals simultaneously.
WARNING:
These amplifiers will not operate and could be
damaged if used in the wrong configuration. At no time should
they be operated below 1 Ohm.
Note:
None
of the X2 Series Monoblock amplifiers are
designed to be strapped or bridged together to power a single
speaker voice coil. Under no circumstances should the output
of any X2 Series Amplifier be connected to anything other
than a speaker voice coil or passive crossover network.
Speaker Output Connections
The X2 650.1 and X2 1100.1 are equipped with set of
removable plug-style terminals for speaker wire connections
up to 12 AWG.
Due to its massive current delivery capabilities, the X2 2500.1
uses a four-position 8 AWG terminal block for speaker wire connections. Speaker wire is secured in place using #2
Phillips set screws. Be conscious of the size of speaker wire you choose when using this amplifier. I can produce more
than 50 amps of current from the speaker terminals.
Make all speaker wire connections carefully and neatly. Strip the wire back 5/16”, twist the exposed leads together
tightly, and insert them into the block terminal while being careful that there is no loose or frayed strands of wire touching
adjacent wires or connections. Tighten the set screw on the terminal until the wire is held in place securely. The amplifier
will go into protection if the wires ever come in contact
Power, Ground and Turn-On Connections
The X2 650.1 and X2 1100.1 amplifiers feature a terminal
block that is designed to accept 4 AWG power and ground
connections. The X2 2500.1 is designed for use exclusively
with 0/1 AWG power wire. We recommend the use of pure
copper power and ground wires in order to achieve the most
reliable connections and efficient current delivery.
X2 2500.1 Power Wiring Note:
Due to the immense current
consumption capabilities of this amplifier, it s recommended
that your run both power and ground wires directly to the
battery. You may need to upgrade your battery, add additional
batteries or upgrade your charging system to supply this amplifier with enough voltage and current for it to produce it’s full
2500 rated output.
The Turn On input should be connected to the amp12V DC remote turn-on output of your after-market source unit.
In most cases this is a blue wire with a white stripe. Note: On some source units, there are power antenna AND remote
turn-on wires. If you only hear audio when listening to the AM/FM tuner, your amp may connected to the wrong wire.
SLAVE IN
SLAVE
OUT
FUSE 30 AMP X 2
+12
V
TURN ON
INPUT
REMOTE
LEVEL
SUB
1
Ω
MIN
PWR \ PROT
GND
CROSSOVER
FREQ Hz
OFF
DC
DETECT
SIGNAL
DETECT
X2 650
.1
HIGHPASS
FREQ Hz
500
50
110
330
500
50
110
330
LOWPASS
FREQ Hz
HIGHPASS
FREQ Hz
500
50
110
330
500
110
330
50
LOWPASS
500
50
110
330
AUTO
SENSE
INPUT
SELECT
2CH
4CH
X1
X10
HP RANGE
CH3/4
FULL
HIGH
GAIN
MIN
MAX
4CH STEREO
BRIDGED 2CH
( )
FRONT
X1
X10
GAIN
MIN
MAX
CH1
CH2
CH3
CH4
CH5
CH6
HIGH
LOW
FULL
LP RANGE
BANDPASS
OFF
ON
CH1/2
2 CH INPUT
BRIDGED
INPUT
CH1/2
CH5/6
INPUT
SELECT
BASS
BOOST
HIGHPASS
BAND
PASS
LP RANGE
X1
X10
HIGH
LOW
FULL
0
dB
12
OFF
ON
GAIN
MIN
MAX
STEREO
MONO
CH5
CH6
2
Ω
MIN
STEREO
CH3/4
LOAD
SELECT
UNDER
Ω
4
OVER
Ω
4
2
Ω
MIN
4 BRIDGED
Ω
4 BRIDGED
Ω
USE UNDER 4
Ω
CH1
CH2
CH3
CH4
CH1/2
LOAD
SELECT
UNDER
Ω
4
OVER
Ω
4
2
Ω
MIN
4 BRIDGED
Ω
USE UNDER 4
Ω
REMOTE
LEVEL
TURN ON
+12V
GND
FUSE 30 AMP X 3
OFF
DC DETECT
SIGNAL
DETECT
LOWPASS
500
50
110
330
CH1/2
CH5/6
INPUT
SELECT
BASS
BOOST
HIGHPASS
HIGH
LOW
FULL
BAND
PASS
LP RANGE
X1
X10
OFF
ON
GAIN
MIN
MAX
STEREO
MONO
CH5
CH6
2
Ω
MIN
STEREO
CH3/4
LOAD
SELECT
UNDER
Ω
4
OVER
Ω
4
2
Ω
MIN
4 BRIDGED
Ω
4 BRIDGED
Ω
Ω
USE UNDER 4
CH3
CH4
CH1/2
LOAD
SELECT
UNDER
Ω
4
OVER
Ω
4
2
Ω
MIN
CH1
CH2
Ω
4 BRIDGED
USE UNDER 4
Ω
REMOTE
LEVEL
0
dB
12
500
110
330
50
X2 1200
.6
CROSSOVER
FREQ Hz
OFF
DC
DETECT
SIGNAL
DETECT
SLAVE IN
SLAVE OUT
FUSE 30 AMP X 3
+12
V
GND
TURN ON
INPUT
REMOTE
LEVEL
SUB
1
Ω
MIN
X2 1100
.1
20.92 [531,35mm]
XDi 2500.1 REV 2.04
CROSSOVER
FREQ Hz
OFF
DC
DETECT
SIGNAL
DETECT
SLAVE IN
SLAVE OUT
SUB
1
Ω
MIN
FUSE 40 AMP X 6
+12
V
GND
TURN ON
INPUT
REMOTE
LEVEL
DO NOT BRIDGE
OR STRAP
X2 2500
.1
