XXV COLOSSUS DUAL MONO BLOCK AMPLIFIER APPLICATIONS
BASIC APPLICATION
9
The Dual Mono Block amplifiers are capable of 4, 2 & 1 Ohm stereo and 4 & 2
bridged loads and can be used in any of the “bi-amplifier” systems described
in the XXV-Juno and XXV-Gemini directions.
The XXV-Colossus has two 1600 watt D-Class channels built-in labeled
L & R on the end panel.
SINGLE AMP INSTALLATION PROCEDURE:
1. Connect the amp LINE INPUTS to the Radio/CD player full range or mono line out puts
4. Connect a 2 gauge ground cable directly to chassis ground with in 36” of the amp.
with good quality RCA interconnect cables.
- Be sure to remove any paint or primer from the ground point.
2. Plug in the XXVR-1 bass remote module into the amp REMOTE INPUT jack.
- Use a nut, bolt and lock washer to secure the ground cable to the chassis ground.
3. Route a 2 gauge power cable directly to the vehicle battery with an in-line 300 amp fuse.
5. Connect the subwoofer(s) in accordance to the diagrams below.
This will allow you to operate separate subs independently (on each channel L
or R) at 4, 2 or 1 Ohm at up to 1600 watts or bridged across L & R to operate a
single sub up to 3200 watts at 4 or 2 Ohms.
Note: The amp is not capable of 1 Ohm when bridged across L & R.
The crossovers and XXVR-1 Bass Remote Module will operate both L & R
channels simultaneously.
REMOTE TURN-ON
REMOTE TURN-ON
CHASSIS GROUND
CHASSIS GROUND
TO B12v VIA
300 AMP FUSE
TO B12v VIA
300 AMP FUSE
DESIGNATED MONO
LINE INPUT
DESIGNATED MONO
LINE INPUT
USING CHANNELS L & R INDEPENDENTLY
USING CHANNELS L & R BRIDGED
BRIDGED MONO
SUBWOOFER
2
OHM MINIMUM
Note: The amplifier is capable of
4, 2 & 1 Ohms per channel in this
configuration
Note: The amplifier is capable of
4 & 2 Ohms in this configuration.
It is not capable of 1 Ohm.
FULL RANGE
STEREO LINE INPUT
NOT USED
Y-ADAPTOR
FULL RANGE
STEREO LINE INPUT
NOT USED
Y-ADAPTOR
Note: You can use the Radio/CD designated mono
line output or a full range stereo line output.
For full range stereo line output, you will need an
optional “Y-Adaptor” as shown
Note: You can use the Radio/CD designated mono
line output or a full range stereo line output.
For full range stereo line output, you will need an
optional “Y-Adaptor” as shown
INP
UT
OU
TP
UT
L
L
R
R
BA
LA
NC
ED
INP
UT
9V
0
.2V
LE
VE
L
0
18
0
PH
AS
E
RE
D -
CL
IP
GR
EE
N -
PR
E-C
LIP
AM
BE
R -
NE
AR
CL
IP
DIA
GN
OS
TIC
S
AM
BE
R -
TH
ER
MA
L
RE
D -
SH
OR
T C
IRC
UIT
HF
R-G
1
RE
MO
TE
PA
RA
ME
TR
IC E
Q
0
10d
B
BO
OS
T
BA
ND
W
IDT
H
30
10
0H
z
FR
EQ
15
35
Hz
SU
B
SO
NIC
35
25
0H
z
LP
F
+1
2V
GN
D
PO
W
ER
BR
ID
GE
D
RE
M
+
-
+
-
L-
CH
R-
CH
M
A
X
X
S
O
N
IC
S
PO
W
ER
ED
B
Y
+1
2V
GN
D
PO
W
ER
BR
ID
GE
D
RE
M
+
-
+
-
L-
CH
R-
CH
M
A
X
X
S
O
N
IC
S
PO
W
ER
ED
B
Y
INP
UT
OU
TP
UT
L
L
R
R
BA
LA
NC
ED
INP
UT
9V
0
.2V
LE
VE
L
0
18
0
PH
AS
E
RE
D -
CL
IP
GR
EE
N -
PR
E-C
LIP
AM
BE
R -
NE
AR
CL
IP
DIA
GN
OS
TIC
S
AM
BE
R -
TH
ER
MA
L
RE
D -
SH
OR
T C
IRC
UIT
HF
R-G
1
RE
MO
TE
PA
RA
ME
TR
IC E
Q
0
10d
B
BO
OS
T
BA
ND
W
IDT
H
30
10
0H
z
FR
EQ
15
35
Hz
SU
B
SO
NIC
35
25
0H
z
LP
F
+1
2V
GN
D
PO
W
ER
BR
ID
GE
D
RE
M
+
-
+
-
L-
CH
R-
CH
M
A
X
X
S
O
N
IC
S
PO
W
ER
ED
B
Y
+1
2V
GN
D
PO
W
ER
BR
ID
GE
D
RE
M
+
-
+
-
L-
CH
R-
CH
M
A
X
X
S
O
N
IC
S
PO
W
ER
ED
B
Y
BASS REMOTE
BASS REMOTE
-6dB
-20dB 0dB
CLIP
GREEN: PRE-CLIP
AMBER: SOFT CLIP
RED: HARD CLIP
GREEN: POWER
DIAGNOSTICS
RED: SHORT
AMBER: THERMAL
XXVR-1
-6dB
-20dB 0dB
CLIP
GREEN: PRE-CLIP
AMBER: SOFT CLIP
RED: HARD CLIP
GREEN: POWER
DIAGNOSTICS
RED: SHORT
AMBER: THERMAL
XXVR-1
