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2 way active, or bi-amplified system with mono bass
2 way active, or bi-amplified system with mono bass, and faded highs/lows
Channels 3/4:
This application shows how easily a 2 way active system can be implemented using a 4
- HI PASS (subsonic): 20 Hz
channel amplifier. Channels 1 and 2 will be used for highs, and channels 3 and 4 for mono
- LOW PASS: 100 Hz
bass.
Interconnect cable checklist:
Please note that these frequency points are suggestions only. Refer to the loudspeaker
manufacturer specifications and the section “Setting up systems after installation for best
- We need to feed the same signal to both sets of channels, so must use a Y-adapter as
performance”
shown.
Mono bass woofer wiring:
Level control checklist:
- Connect the mono speaker positive terminal to the LEFT +, and its negative terminal to
Refer to the section “Setting up systems after installation for best performance”
RIGHT -.
Minimum final loudspeaker impedances:
Switch setting checklist:
- 2-Ohms per channel in stereo mode.
- 1/2CH X-OVER: HP
- 4-Ohms mono bridged.
- 3/4CH X-OVER: LP
Crossover frequency control checklist:
Channels 1/2:
- HI PASS: 100 Hz
- LOW PASS: N/A
Interconnect cable checklist:
Here we present a variation of the previous system. Since this is a 2 way system, we can
- Use good quality RCA leads to connect the inputs of the amplifier to the source as shown.
use the front outputs from a head unit to drive the highs, and the rear output to drive the
bass This method allows the listener to easily adjust the relative levels of bass to highs,
- Follow the instructions as per the previous system for switch and crossover settings.
with the front to rear fade on the head unit.
Channels 1 and 2 will be used for highs, and channels 3 and 4 for mono bass.
LINE INPUT
LINE OUTPUT
R
L
CH3/4 CH1/2
CH3 CH4
CH1 CH2
CHANNEL 1 / 2
CHANNEL 3 / 4
+ - gnd - +
+ - gnd - +
HI INPUT
5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF
X-OVER
5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF
X-OVER
CHANNEL
2 3 4
MODE
FUSE
POWER INPUT
GND REM +12V
SPEAKER OUTPUT
BRIDGED
SPEAKER OUTPUT
BRIDGED
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY + 12 Volts VIA FUSE
LINE INPUT
LINE OUTPUT
R
L
CH3/4 CH1/2
CH3 CH4
CH1 CH2
CHANNEL 1 / 2
CHANNEL 3 / 4
+ - gnd - +
+ - gnd - +
HI INPUT
5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF
X-OVER
5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF
X-OVER
CHANNEL
2 3 4
MODE
FUSE
POWER INPUT
GND REM +12V
SPEAKER OUTPUT
BRIDGED
SPEAKER OUTPUT
BRIDGED
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY + 12 Volts VIA FUSE
MONO INPUT
CHANNELS
3 AND 4
FULL RANGE
STEREO INPUT
CHANNELS
1 AND 2
FULL RANGE
STEREO LINE
INPUTS
STEREO
HIGHS
SPEAKERS
MONO
BASS
SPEAKER
STEREO
HIGHS
SPEAKERS
MONO
BASS
SPEAKER
TXi4408 / TXi6408 4 CHANNEL AMPLIFIER APPLICATIONS
R
R
L
L
- RIGHT + - LEFT +- RIGHT + - LEFT +
- RIGHT + - LEFT +- RIGHT + - LEFT +