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Fuses
The X2 Series Monoblock amplifiers included on-board ATC/
ATO fuses on the left side of the end-panel. These fuses exist
to protect the internal circuitry of the amplifier from damage
and are not a replacement for a proper fuse at the battery in
your vehicle. Under no conditions should you increase the
value of the fuses used in this location.
If the fuses blow immediately upon insertion, contact your
authorized ARC Audio dealer or the Technical Support
department at ARC Audio for assistance.
X2 650.1
2 x 30 Amp
X2 1100.1
3 x 30 Amp
X2 2500.1
6 x 30 Amp
Auto Sense Turn-On Detection
All three X2 Series Monoblock amplifiers feature two Auto-
Sense Turn-On modes. In DC Detect mode, these amplifiers
monitor the Channel 1 RCA input for the presence of a DC
offset voltage (common with Bridge Tied Load (BTL) source
units and amplifiers). When this DC voltage is present, the
amps will turn themselves on.
When set to Signal Detect, these amplifiers will monitors the
Channel 1 RCA input for the presence of an audio signal.
When an audio signal is present, the amp will turn itself on.
These amplifiers turn off automatically 10 seconds after
the DC Detect or Signal Detect circuit no longer sees an
appropriate signal.
When using either Auto-Detect mode, only the Channel 1
input is monitored.
The Turn On input on the power terminal block is NOT
used when Auto Detect is turned on.
Accessing Controls and Mounting Provisions
All X2 Series Monoblock amplifiers feature a removable
shroud that conceals the amplifier controls. The X2 650.1
features X2 Level 1 cosmetics with the X2 1100.1 and X2
2500.1 feature Level 2 X2 Series cosmetics. The Level 2
shroud features an elegant new silver brushed-aluminum
extruded aluminum design. An acrylic plastic badge in the
center of the amp illuminates in blue when the amp is on, and
can flash diagnostic codes as required. The badge may be
rotated in 90 degree increments to suit any installation.
To access the controls on the top of the amp, remove the four
screws in the badge and set them in a safe place. Remove the
badge and set it in a safe place. The amp shroud can now be
removed for tuning and installation.
Note: Amplifier shown represents X2-Series amplifier.
Dimensions are not to scale.
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
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
Auto-Detect Monitors
the top INPUT ONLY
Not Used with
Auto-Detect
SLAVE IN
SLAVE
OUT
FUSE 30 AMP X 2
+12V
TURN ON
INPUT
REMOTE
LEVEL
SUB
1
Ω
MIN
PWR \ PROT
GND
CROSSOVER
FREQ Hz
OFF
DC
DETECT
SIGNAL
DETECT
X2 650
.1
