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.
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.
9
Functions & Controls
Phase
Phase Shift
from 0
°
to 180
°
to adjust the speakers or
the subwoofer to the acoustic
characteristics of the vehicle.
This controller adjusts the
Bass EQ
Variable Bass Boost
from 0 up to +12dB
at 45 Hz.
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.
Level Inputl
Adjust the input sensitivity
from 6 Volts to 0,2 Volts.
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”
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