REMOTE
GROUND
+ 12 V
YELLOW LED
LOW IMPEDANCE
ORANGE LED
THERMAL PROTECT
RED LED
POWER ON
DUAL SPEAKER OUTPUTS
ONE TWO
ONE TWO
-20 -10 0 +10 +20
FAN
PLENUM
DUAL SPEAKER OUTPUT TERMINALS: EVEN THOUGH THE 301a IS A MONO AMPLIFIER,
2
SETS OF SPEAKER OUTPUT TERMINALS HAVE BEEN PROVIDED. BOTH POSITIVE TERMI-
NALS AND NEGATIVE TERMINALS ARE PARALLELED. EITHER SET OF TERMINALS OR BOTH
SETS OF TERMINALS MAY BE USED
. THIS 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
. TO 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. USE 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 301A
TO PROVIDE ITS MAXIMUM
300 WATTS OF POWER TO YOUR SPEAKER SYSTEM – AT
EITHER
4Ω OR 2Ω. WITH CERTAIN SPEAKER SYSTEMS (I.E. 3Ω), BOTH SETTINGS
SHOULD BE SAMPLED TO DETERMINE THE OPTIMUM LOAD SETTING
.
OUTPUTS
INPUTS
+ – + –
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
.
INSTALLATION/ADJUSTMENT SEQUENCE
REMOVE AMPLIFIER COVER. DO 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
POWER, GROUND, REMOTE, & SPEAKER CABLES. MARK FOR CUTTING/TER-
MINATION. REMOVE 301a. CUT AND TERMINATE ALL WIRES. CAUTION:
STRIPPING WIRES OVER THE CIRCUIT BOARD MAY CAUSE
PRODUCT FAILURE.
① BALANCED INPUTS: MAKE ALL INITIAL ADJUSTMENTS AT YOUR WORK
BENCH
. TO SELECT “BALANCED INPUT” 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: THE INPUT GAIN IS FACTORY PRESET AT +10dB AND WILL
WORK WITH AN INPUT SIGNAL OF
300MV TO 1 VOLT. TO INCREASE THE GAIN,
MOVE THE JUMPER TO THE +20 dB POSITION. TO DECREASE INPUT GAIN,
PLACE JUMPER IN THE 0, -10, OR -20 dB POSITION.
➂ OPTIMIZING CIRCUIT: THE POWER SUPPLY “OPTIMIZING CIRCUIT”
LABELED “OUTPUT IMPEDANCE” IS LOCATED BY THE POWER SUPPLY CAPACITORS
(BELOW THE XTANT LOGO ). PLACE THE JUMPER IN THE POSITION WHICH CLOSE-
LY MATCHES THE LOAD OF YOUR SPEAKER SYSTEM. (IE: 2Ω OR 4Ω)
➃ INSTALL ACCESSORY MODULES. AT YOUR BENCH, ADJUST
CROSSOVER MODE JUMPERS AND CHANGE CROSSOVER FREQUENCY
SIP’S.
REMOVE PORT JUMPERS AND INSTALL MODULE(S) – OBSERVE “KEY” ON CON-
NECTOR FOR PROPER FIT. ADJUST PQM-1 OR LFQ 45 EQ MODULES AFTER
AMP IS MOUNTED
.
MOUNT THE AMPLIFIER AND MAKE ALL CONNECTIONS.
D
OUBLE CHECK ALL CONNECTIONS! TURN ON AMPLIFIER. CHECK RED LED, IT
SHOULD BE ON
. IF ANY OTHER ADJUSTMENTS NEED TO BE MADE (CROSSOVER
MODULES
/INPUT GAIN ADJUSTMENT), THE ⑤ “REMOTE TURN ON” JUMPER,
LOCATED BELOW THE “OUTPUT IMPEDANCE” JUMPER, MAY BE USED TO TURN
THE AMP OFF
. MAKE 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
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