REMO
TE
GR
OUND
+ 12
V
YELLO
W
LED
LO
W
IMPED
ANCE
ORANGE
LED
THERMAL
PR
O
TECT
RED
LED
PO
WER
ON
DUAL SPEAKER OUTPUTS
ONE TWO
ONE TWO
-20 -10 0 +10 +20
FA
N
PLENUM
DUAL SPEAKER OUTPUT TERMINALS
:
EVEN THOUGH THE
301a
IS A MONO AMPLIFIER
,
2
SETS OF SPEAKER OUTPUT TERMINALS HAVE BEEN PROVIDED
. B
OTH POSITIVE TERMI
-
NALS AND NEGATIVE TERMINALS ARE PARALLELED
. E
ITHER SET OF TERMINALS OR BOTH
SETS OF TERMINALS MAY BE USED
. T
HIS FEATURE WILL HELP TO SIMPLIFY THE PARALLEL
CONNECTION OF MULTIPLE WOOFERS AND INSURE MAXIMUM CURRENT FLOW
.
BALANCED INPUT
:
TO ENABLE THE BALANCED LINE
,
PLACE THE JUMPER ON THE
LEFT AND CENTER SET OF PINS
. T
O DISABLE
,
REMOVE JUMPER AND PLACE IT ON THE
CENTER AND RIGHT SET OF PINS
.
OBSERVE THE LABELING ON THE CIRCUIT BOARDS
.
REMOTE SWITCHED
12
VOLTS
16
GAUGE OR LARGER
GROUND
– 8
GAUGE OR LARGER
POWER
– 8
GAUGE OR LARGER
INPUT GAIN
:
TO ADJUST INPUT GAIN
,
MOVE JUMPER AND INSTALL IT IN THE LOCATION WHICH MATCHES YOUR INPUT SIG
-
NAL LEVEL
.
REFER TO THE ILLUSTRATION BELOW FOR PROPER JUMPER LOCATION
/
LEVEL SETTING
.
NOTE
: –20 dB = 10V – 17V
IS ONLY TO BE USED WITH BALANCED INPUT FROM A BALANCED SOURCE
. (
IE
:
FLOATING GROUND OUT
-
PUT
)
–20 dB = 10V – 17V
–10 dB = 3V – 8V
0 dB = 1V – 3V
+10 dB = 300mV–1V
+20 dB = 100– 300mV
AMPLIFIER GAIN CONTROL
:
TURN CLOCKWISE TO INCREASE GAIN
XTANT TECHNOLOGIES 7676 SOUTH 46TH STREET PHOENIX, ARIZONA 85040 PHONE: 888.449.8268 FAX 602.431.8600
INSTALLER’S
REFERENCE
. . . . . . . . . . . . . .
XTANT 301A
. . . . . . . . . . . . . .
CAUTION: SHARP EDGES
BE CAREFUL WHEN HANDLING TOP
AND BOTTOM METAL
.
CAUTION: THE
301a
IS NOT FUSE PROTECTED!
FOR SAFTEY
,
AN OUTBOARD
50
AMP FUSE MAY BE ADDED CLOSE TO THE
AMPLIFIER
.
A
50
AMP FUSE MUST BE INSTALLED IN
-
LINE WITH THE POWER
WIRE AT THE BATTERY
.
SERVICE JUMPER
:
REMOVING JUMPER WILL TURN
-
OFF
AMPLIFIER WHEN REMOTE TURN
-
ON
,
GROUND AND
+12
VOLT CABLES ARE CONNECTED TO AMPLIFIER
. U
SE TO
SERVICE
/
ADJUST AMPLIFIER WHEN IN USE
.
IMPEDANCE JUMPER
:
USE THIS JUMPER TO MATCH THE IMPEDANCE LOAD
OF YOUR SPEAKER SYSTEM TO THE AMPLIFIER
.
THIS FUNCTION ALLOWS THE
301
A
TO PROVIDE ITS MAXIMUM
300
WATTS OF POWER TO YOUR SPEAKER SYSTEM
–
AT
EITHER
4
Ω
OR
2
Ω
. W
ITH CERTAIN SPEAKER SYSTEMS
(
I
.
E
. 3
Ω
),
BOTH SETTINGS
SHOULD BE SAMPLED TO DETERMINE THE OPTIMUM LOAD SETTING
.
O U T P U T S
I N P U T S
+ – + –
LFQ-45, CM 12HP
& CM 12LP
ONLY
LFQ-45, CM 12HP
& CM 12LP
ONLY
CM 24x, PQM-1, LFQ-45,
CM 12HP & CM 12LP
LINE OUTPUT ACCESSORY PORT
AMPLIFIER ACCESSORY PORTS
BALANCED INPUT
OUTPUT
IMPEDANCE
REMOTE
TURN ON
INPUT GAIN
WARNING:
ADD A
50
AMP FUSE AT THE POSITIVE
TERMINAL OF THE BATTERY
.
IF
MULTIPLE
AMPS
ARE
BEING
USED
,
THE
FUSE
VALUE SHOULD EQUAL THE
COMBINED TOTAL DEMAND
OF ALL AMPLIFIERS IN THE
SYSTEM
.
I N S T A L L A T I O N / A D J U S T M E N T S E Q U E N C E
REMOVE AMPLIFIER COVER. D
O NOT REMOVE PROTECTIVE COVER
-
ING UNTIL INSTALLATION IS COMPLETE
.
TEMPORARILY MOUNT AMPLIFIER. T
HE AMPLIFIER IS DESIGNED TO
BE ANCHORED THROUGH THE FOUR HOLES LOCATED ON THE CIRCUIT
BOARD
/
BASE ASSEMBLY
.
MARK WIRES FOR TERMINATION. D
ETERMINE WIRE LENGTHS FOR
P
OWER
, G
ROUND
, R
EMOTE
, & S
PEAKER CABLES
. M
ARK FOR CUTTING
/
TER
-
MINATION
. R
EMOVE
301a. C
UT AND TERMINATE ALL WIRES
. CAUTION:
STRIPPING WIRES OVER THE CIRCUIT BOARD MAY CAUSE
PRODUCT FAILURE.
①
BALANCED INPUTS: M
AKE ALL INITIAL ADJUSTMENTS AT YOUR WORK
BENCH
. T
O SELECT
“B
ALANCED
I
NPUT
”
FOR
OEM
INTEGRATION OR INDUC
-
TIVE NOISE CANCELLATION
,
MOVE THE JUMPER
,
LOCATED ABOVE AND TO THE
LEFT OF THE
RCA
INPUT CONNECTORS TO THE
“
ENABLE
”
POSITION
.
②
INPUT GAIN: T
HE INPUT GAIN IS FACTORY PRESET AT
+10dB
AND WILL
WORK WITH AN INPUT SIGNAL OF
300
M
V
TO
1 V
OLT
. T
O INCREASE THE GAIN
,
MOVE THE JUMPER TO THE
+20 dB
POSITION
. T
O DECREASE INPUT GAIN
,
PLACE JUMPER IN THE
0, -10,
OR
-20 dB
POSITION
.
➂
OPTIMIZING CIRCUIT: T
HE POWER SUPPLY
“O
PTIMIZING
C
IRCUIT
”
LABELED
“O
UTPUT
I
MPEDANCE
”
IS LOCATED BY THE POWER SUPPLY CAPACITORS
(
BELOW THE
X
TANT LOGO
). P
LACE THE JUMPER IN THE POSITION WHICH CLOSE
-
LY MATCHES THE LOAD OF YOUR SPEAKER SYSTEM
. (
IE
: 2
Ω
OR
4
Ω
)
➃
INSTALL ACCESSORY MODULES. A
T YOUR BENCH
,
ADJUST
CROSSOVER MODE JUMPERS AND CHANGE CROSSOVER FREQUENCY
SIP’
S
.
R
EMOVE PORT JUMPERS AND INSTALL MODULE
(
S
) –
OBSERVE
“
KEY
”
ON CON
-
NECTOR FOR PROPER FIT
. A
DJUST
PQM-1
OR
LFQ 45 EQ
MODULES AFTER
AMP IS MOUNTED
.
MOUNT THE AMPLIFIER AND MAKE ALL CONNECTIONS.
D
OUBLE CHECK ALL CONNECTIONS
! T
URN ON AMPLIFIER
. C
HECK RED LED
,
IT
SHOULD BE ON
. I
F ANY OTHER ADJUSTMENTS NEED TO BE MADE
(
CROSSOVER
MODULES
/
INPUT GAIN ADJUSTMENT
),
THE
⑤
“R
EMOTE
T
URN
O
N
”
JUMPER
,
LOCATED BELOW THE
“O
UTPUT
I
MPEDANCE
”
JUMPER
,
MAY BE USED TO TURN
THE AMP OFF
. M
AKE ADJUSTMENTS AND PLACE JUMPER IN THE ENABLE POSI
-
TION TO TURN THE AMP BACK ON
.
➅
ADJUST OUTPUT GAIN TO SET SYSTEM LEVEL.
AFTER FINE TUNING THE SYSTEM,
REMOVE PROTECTIVE COVERING
AND SPRAY A LIGHT COATING OF
WD40
™ ON A SOFT CLOTH AND CLEAN COVER
.
➁
➂
➃
➃
⑤
①
➅
