CONNECTIONS & CONTROLS
1. INPUT
– Xtant2.2and Xtant4.4 amplifiers feature RCA type input connec-
tions. Source units with an output signal level of 100mV–17V may be used.
See "Balanced Input" for proper voltage level setting.
2. OUTPUT
– These RCA type output connections send full range signals to
additional amplifiers eliminating the need for "Y" connectors.
3. BALANCED INPUT
– The balanced input switch serves two purposes. First,
it helps eliminate noises being induced into the signal path by isolating the
signal ground. Second, it is used to set the proper input voltage range:
OFF POSITION:
100mV – 8V
ON POSITION:
200mV – 17V
4. GAIN
– This feature is used to fine-tune the input sensitivity of the
amplifier to the source unit’s output level.
5. A.R.C.
– The Active Resonance Control (A.R.C.) is a level adjustment that
reduces the resonant frequencies inside the vehicle to improve the mid-range
sound quality. Turn this control either clockwise or counter clockwise until the
vocals of the music are up-front and centered in the vehicle. The mid-range
sound should be smooth and detailed.
6. XOVER SWITCH
– This switch is used to pick the preferred frequency
range the amplifier will play. A high-pass, low-pass, or full range output may
be selected.
7. XOVER FREQUENCY CONTROL
– This control allows the user to choose
the exact low-pass or high-pass frequency range the amplifier will play for the
best possible performance. The upper end of the low-pass crossover range can
be selected from 40Hz-120Hz at 24dB per octave with a mono output. The
lower end of the high-pass crossover range can be selected from 40Hz-120Hz
at 12dB per octave with a stereo output.
8. BASS BOOST
– This feature will add up to 12dB of low frequency impact
to the audio system. The Bass Boost is centered at 45Hz.
9. SPEAKER CONNECTION
– These output terminals are individually labeled
for proper speaker connections. When bridging the amplifier, use the left posi-
tive terminal and the right negative terminal only. Warning: do not bridge the
amplifier with an impedance lower than 4 Ohms.
10. POWER TERMINALS
– This is the main power connection for the ampli-
fier. The power and ground wire size should be the same gauge.
GND
– The ground wire from this connection must be attached
to bare metal on the vehicle.
REM
– To turn the amplifier on/off, this terminal must be connected
to the source unit’s "remote or electric antenna" wire.
+12V
– The power wire from this connection must be attached
to an inline fuse, then to the positive side of the vehicle battery.
WARNING:
An outboard fuse must be installed in-line with the power wire within
18 inches of the battery.
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xtant.com
Xtant2.2/Xtant4.4 Amplifier Owner’s Manual
PERFORMANCE FEATURES
ACTIVE RESONANCE CONTROL
Active Resonance Control (ARC). This circuitry compensates for the unwanted resonance
frequencies created when installing midbass or midrange speakers in the kick panels or lower
door areas of a vehicle.
FULLY REGULATED PWM POWER SUPPLY
Xtant amplifiers feature a Fully Regulated, Pulse Width Modulated power supply. This power
supply technology provides high efficiency and consistent output performance even when
battery voltage is less than optimum.
CROSSOVER
This control allows the user to choose the exact low-pass or high-pass frequency range the
amplifier will play for the best possible performance.
BALANCED/FLOATING INPUT
When enabled, this circuitry helps to eliminate “system noise” associated with ground loops.
When combined with the input sensitivity adjustment, it allows the amplifier to accept up to 17V
of input signal.
PROTECTION CIRCUITRY
Both Thermal and Overcurrent protection are incorporated into Xtant amplifiers. In the event of
a problem, the amplifier will reduce its power to maintain operation.
STATUS LEDS (LOCATED ON THE TOP OF THE AMPLIFIER)
Three LEDs indicate operational status of Xtant amplifiers. The red LED illuminates when the
amplifier is “ON”, the yellow LED indicates that overcurrent protection is engaged, the orange
LED indicates that the thermal protection circuit is engaged.
OPTIONAL PERFORMANCE ENHANCEMENTS
HIGH LEVEL ADAPTER (HLA)
High Level Adapters allow you to connect a source unit with speaker level outputs to your Xtant
amplifier.
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