Functions & Controls - Hifonics TXi 1200 Owner's Manual

Low Pass
This controller adjusts the frequency of the loudspeakers upward (X-OVER switch position LP/BP). The cut-off frequency is continuously
adjustable from 40Hz to 150Hz. Together with the Subsonic-Filter, this controller is also working as Bandpass-Filter (BPF). The cutting-off of
the lower frequencies ensures a tight kickbass-signal. If this function is not desired, bring the Subsonic-Controller to the 15 Hz position.
Sub Sonic
This controller allows to cut-off the ultra-low frequencies, to avoid mechanical and electrical overstressing on the subwoofer. These very low
frequencies will not be acoustically devolved by the subwoofer. This cut-off frequency is adjustable from 15 Hz to 55 Hz. The Subsonic-Filter
also works as a Highpass-Filter (15 - 55 Hz) in the Highpass-Mode (X-OVER switch position HP). Thereby this amplifier can be used with an
addtional second TXi1200 model (each one amp for right and left channel) for a loudspeaker-system.
Remote
Terminal for the provided cable remote
controller, which allows to control the
bass level of the subwoofer e.g. out of
the driver's seat.
Power - LED (also located on the remote controller)
The green LED indicates, that the amplifier is turned on.
Protect - LED (also located on the remote controller)
If the red LED lights up, the following matters occurs:
a) Overheating
b) Speaker wires shorted
c) Overload (Impedance, weak power supply)
d) Amplifier is damaged
The built-in electronic diagnostic protection saves the
amplifier and speakers from serious damages.
If the red LED lights up due to overheating, let the
amplifier cool down a while, then turn it on again. If the red
LED still lights up, observe therefor the section "TROUBLE
SHOOTING"
Functions & Controls
Level Inputl
Adjust the input sensitivity
from 6 Volts to 0,2 Volts.
Bass EQ
Variable Bass Boost
from 0 up to +12dB
at 45 Hz.
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Line Out - RCA Outputs
RCA Outputs to send the line signal to additional
amplifiers.
Input - RCA Inputs
Full range line input to connect with the head unit
RCA Outputs.
X-Over
The switch determinates the operation mode of the amplifier. For the modes
HP and FULL, another additional TXi1200 amplifier is required to run the
speakers in stereo.
Position LP/BP:
The Lowpass-/Bandpass-Mode is suited for subwoofer operations. The
signal will be limited upward and only the bass frequencies will be amplified.
The cut-off frequency is adjustable by the LOW PASS-controller.
Position HP:
The Highpass-Mode is suited for loudspeaker operations. The signal is
limited downwards and only the mids and highs will be amplified.
The cut-off frequency is adjustable by the SUB SONIC-controller.
Position FULL:
The Fullrange-Mode is suited for very huge loudspeaker systems or huge
backshelf systems. Thereby the whole freqencies will be amplified.
Phase
This controller adjusts the Phase Shift
from 0° to 180° to adjust the speakers or
the subwoofer to the acoustic
characteristics of the vehicle.
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