CONTROL ELEMENTS
Stereo 2-way operation
Firstly, the activate stereo 2-way mode by means of the two MODE buttons on the rear
panel. The STEREO-LED on the front panel, above the second LOW CUT button, lights up.
1 INPUT control
This control adjusts the input gain by a range of -
to +12dB (see control 16).
2 LOW CUT button
This button activates the 25Hz high-pass filter protecting the woofers against low
- frequency signals.
3 LOW/HIGH XOVER FREQ control
This contorl governs the crossover frequency between the Low and High bands. When
the XOVER FREQUENCY button on the rear of the unit is pressed, the frequency range
is multiplied by the factor 10.
5 DELAY control
This control delays the Low signal as much as 2 ms, which is useful to align the speaker
systems in phase.
6 LOW OUTPUT control
This knob controls the output level of the Low band from -
to +6 dB.
7 LOW PHASE INVERT button
Via this button, you can reverse the phase of the Low output.
Fig. 1 Proper selection of the two MODE buttons for stereo 2-way operation
Fig. 2 Active control elements on the front panel
Subsequently, the LEDs above the active controls on the front panel light up, signalling which
controls are active in the operating mode you just selected. The functions of these controls
can be seen from the second strip label. In stereo mode, both channels perform the same
functions.
1 INPUT control
This contorl adjusts the input gain by a range of -
to +12dB.
2 LOW CUT button
This button activates the 25Hz high-pass filter protecting the woofers against low- frequency
signals.
3 LOW/LOW-MID XOVER FREQ. control
This control governs the crossover frequency between the Low and Low-Mid bands.
When the XOVER FREQUENCY button on the rear of the unit is pressed, the frequency
range is multiplied by the factor 10.
4 LOW-MID/HIGH-MID XOVER FREQ. control
This control governs the crossover frequency between the Low-Mid and High-Mid bands.
5 DELAY control
This knob is used to delay the Low signal as much as 2 ms, which is useful to align the
speaker systems in phase.
6 LOW OUTPUT control
This knob ranges the output level of the Low band from -
to +6dB.
7 LOW PHASE INVERT button
Via this button, you can reverse the phase of the Low output.
8 LOW MUTE button
This button is used to mute the Low band.
9 LOW-MID OUTPUT control
This knob ranges the output level of the Low-Mid band from -
to dB.
10 LOW-MID PHASE INVERT button
Via this button, you can reverse the phase of the Low-Mid output.
11 LOW-MID MUTE button
This button is used to mute the Low-Mid band.
15 CD HORN button
This button provides a special form of frequency correction in the High band for
constant-directivity horns.
Fig. 8 Active control elements on the front panel of the TXO-234 MK II
Subsequently, the LEDs above the active controls on the front panel light up, signaling
which controls are active in the operating mode you just selected. The functions of these
controls can be seen from the first strip label.
2
2
7
7
8
4
9 11
1
2
3
5
6
15
30 31
7
10
24 26 27 29
25
28
19
1
2
3
5
6
8
12 14 15
30 31
7
13
OFF
ON
dB
CHANNEL 1
8
25Hz
2k
200
1k2
120
3k5
350
600
60
7k
700
440
44
9k3
930
Hz
dB
Hz
7k
600
1k2
3k5
9k3
440
2k
mSec.
0.7
1.3
2
0
1
2
2
6
0
4
4
dB
2
2
6
0
4
4
dB
2
2
6
0
4
4
dB
25Hz
2k
200
1k2
120
3k5
350
600
60
7k
700
440
44
9k3
930
Hz
dB
Hz
7k
600
1k2
3k5
9k3
440
2k
mSec.
0
0.7
1.3
2
1
2
2
6
0
4
4
dB
2
2
6
0
4
4
2
0
dB
2
6
4
4
8
4
12
0
4
8
8
4
12
0
4
dB
18
6
12
OFF
6
0
9
MONO
LIM
LIM
LIM
STEREO
LIM
LIM
LIM
MULTIBAND LIMITER
CHANNEL 2
OFF
ON
OFF
ON
OFF
ON
INV
INV
INV
INV
INV
INV
ON
OFF
R
STEREO 3-WAY
2
INPUT
INPUT
LOW CUT
LOW CUT
LOW/LOW-MID
LOW/MID
HIGH
LOW-MID/HIGH-MID
MID/HIGH
LOW DELAY
LOW DELAY
LOW OUTPUT
LOW OUTPUT
MID OUTPUT
LOW-MID OUTPUT
HIGH OUTPUT
MONO 4-WAY
INPUT
LOW/MID
HIGH
HIGH-MID/HIGH
MID/HIGH
LOW DELAY
LOW OUTPUT
MID OUTPUT
HIGH -MID OUTPUT
HIGH OUTPUT
HIGH OUTPUT
STEREO 3-WAY
2-WAY
MONO 4-WAY
INPUT
DELAY
LIMITER
XOVER FREQ.
XOVER FREQ.
GAIN
MUTE
GAIN
MUTE
GAIN
MUTE
CD HORN
LOW CUT
DELAY
XOVER FREQ.
XOVER FREQ.
GAIN
MUTE
GAIN
MUTE
GAIN
MUTE
THRESHOLD
INPUT
LOW CUT
POWER
LOW CUT
2-WAY/3-WAY STEREO
4-WAY MONO
ACTIVE CROSSOVER
TXO-234
MK
OFF
ON
dB
CHANNEL 1
8
25Hz
2k
200
1k2
120
3k5
350
600
60
7k
700
440
44
9k3
930
Hz
dB
Hz
7k
600
1k2
3k5
9k3
440
2k
mSec.
0.7
1.3
2
0
1
2
2
6
0
4
4
dB
2
2
6
0
4
4
dB
2
2
6
0
4
4
dB
25Hz
2k
200
1k2
120
3k5
350
600
60
7k
700
440
44
9k3
930
Hz
dB
Hz
7k
600
1k2
3k5
9k3
440
2k
mSec.
0
0.7
1.3
2
1
2
2
6
0
4
4
dB
2
2
6
0
4
4
2
0
dB
2
6
4
4
8
4
12
0
4
8
8
4
12
0
4
dB
18
6
12
OFF
6
0
9
MONO
LIM
LIM
LIM
STEREO
LIM
LIM
LIM
MULTIBAND LIMITER
CHANNEL 2
OFF
ON
OFF
ON
OFF
ON
INV
INV
INV
INV
INV
INV
ON
OFF
R
STEREO 3-WAY
2
INPUT
INPUT
LOW CUT
LOW CUT
LOW/LOW-MID
LOW/MID
HIGH
LOW-MID/HIGH-MID
MID/HIGH
LOW DELAY
LOW DELAY
LOW OUTPUT
LOW OUTPUT
MID OUTPUT
LOW-MID OUTPUT
HIGH OUTPUT
MONO 4-WAY
INPUT
LOW/MID
HIGH
HIGH-MID/HIGH
MID/HIGH
LOW DELAY
LOW OUTPUT
MID OUTPUT
HIGH -MID OUTPUT
HIGH OUTPUT
HIGH OUTPUT
STEREO 3-WAY
2-WAY
MONO 4-WAY
INPUT
DELAY
LIMITER
XOVER FREQ.
XOVER FREQ.
GAIN
MUTE
GAIN
MUTE
GAIN
MUTE
CD HORN
LOW CUT
DELAY
XOVER FREQ.
XOVER FREQ.
GAIN
MUTE
GAIN
MUTE
GAIN
MUTE
THRESHOLD
INPUT
LOW CUT
POWER
LOW CUT
2-WAY/3-WAY STEREO
4-WAY MONO
ACTIVE CROSSOVER
TXO-234
MK
