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SAFETY RELATED SYMBOLS 

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

This symbol, wherever used, alerts 
you to the presence of un-insulated 
and dangerous voltages within the 
product enclosure. These are voltages 
that may be sufficient to constitute the
risk of electric shock or death.

WARNING

Describes precautions that should be
observed to prevent the possibility of 
death or injury to the user.

Describes precautions that should be 
observed to prevent damage to the 
product.

CAUTION

Operating Conditions

Always install in accordance with the 
manufacturer's instructions.

This symbol, wherever used, alerts
you to important operating and ma-
intenance instructions. Please read.

Protective Ground Terminal

AC mains (Alternating Current)

Hazardous Live Terminal

ON:

   

OFF: 

Denotes the product is turned on.

Denotes the product is turned off. 

WARNING

Power Supply

 

Ensure that the mains source voltage (AC
outlet) matches the voltage rating of the
product. Failure to do so could result in
damage to the product and possibly the user.  

External Connection

 

Do not Remove any Covers

 

Fuse

 

To prevent fire and damage to the 
product, use only the recommended 
fuse type as indicated in this manual. 
Do not short-circuit the fuse holder. 
Before replacing the fuse, make sure
that the product is OFF and disconnected 
from the AC outlet.

Always use proper ready-made insulated
mains cabling (power cord). Failure to do
so could result in shock/death or fire. If 

in doubt, seek advice, from a registered

electrician. 

Within the product are areas where high
voltages may present. To reduce the risk
of electric shock do not remove any 
covers unless the AC mains power cord 
is removed.

Covers should be removed by qualified
service personnel only. 

No user serviceable parts inside.

Unplug the product before electrical  storms 
occur and when unused for long periods of
time to reduce the risk of electric shock or 
fire. 

Protective Ground

Before turning the product ON, make sure 

that it is connected to Ground. This is to 

prevent the risk of electric shock.
Never cut internal or external Ground wires. 
Likewise, never remove Ground wiring 
from the Protective Ground Terminal.

Disposing of this product should 
not be placed in municipal waste 
and should be separate collection.

11

11

CONTROLS

Xover Frequency 
Delay 

Input 

Gain 
Threshold 

POWER SUPPLY

Mains Voltages 

Power Consumption 

Fuse 

Mains Connection 

PHYSICAL

Dimensions 
Net Weight

CD Horn 

Limiter 
Rear Panel
Xover Frequency 

Mode 
LF Sum 

CROSSOVER

Filter Type
Stereo Mode Frequencies
Low/High 

Low/Mid
Mid/High 
Mono Mode Frequencies

Low/Low-Mid
Low-Mid/High-Mid
High-Mid/High

FUNCTION SWITCHES

Front Panel

Phase Invert 

Low Cut

Mute

ON=Channel 1 

 6dB louder / Channel 2: the 

Corrects CD horn frequency response above

 3.5 kHz

Activates the limiter function for all outputs

Multiplies crossover frequency range by 10
Selects stereo/mono and 2/3/4-way operation
Selects normal stereo or mono-summed low

 frequency operation

                                                        High to High-Mid:             

                                                       High-Mid to Low-Mid:       

                                                       Low-Mid to Low:                

95 dB

95 dB
92 dB

 Linkwitz-Riley, 24 dB/Octave, state-variable

44 to 930 Hz 

 44 to 930 Hz 

440 Hz to 9.3 kHz

 44 to 930 Hz 
 440 Hz to 9.3 kHz
 440 Hz to 9.3 kHz

 1 

 10

 1 

 10

440 Hz to 9.3 kHz
440 Hz to 9.3 kHz

440 Hz to 9.3 kHz

 Activates 25 Hz Butterworth, 12 dB/Octave 

high-pass filter

 Mutes the individual output

Inverts the phase at the individual output

Controls the input gain (-

 to +12 dB)

Controls the crossover frequency
Controls the delay at the low output (0 to 2 msec.)

U.K./Australia 

Europe 

General Export Model 

95-120V: 500mA 250VAC

Controls the output gain (- 

 to 

6 dB)

Controls the threshold of the limiter ( 

6 dB to OFF)

USA/Canada 

230 V~, 50 Hz

95-120 V~, 210-240 V~, 50-60 Hz

 

17W

210-240V: T250mAL 250VAC

Standard IEC receptacle

 3 kg(6.61 lb)

483   194.5   44mm/19(W)"   7.7(D)"   1.7(H)"

same as before

120 V~, 60 Hz
240 V~, 50 Hz

Summary of Contents for TXO-234 MK II

Page 1: ...2 way 3 way stereo 4 way mono USER s MANUAL ACTIVE CROSSOVER TXO 234 MK II ...

Page 2: ...ccur and when unused for long periods of time to reduce the risk of electric shock or fire Protective Ground Before turning the product ON make sure that it is connected to Ground This is to prevent the risk of electric shock Never cut internal or external Ground wires Likewise never remove Ground wiring from the Protective Ground Terminal Disposing of this product should not be placed in municipa...

Page 3: ...ance has been dropped or the enclosure damaged Operating SPECIFICATIONS XLR F JACK unbalanced link 1 2 3 LINK 3 to 1 GROUND SIGNAL SLEEVE TIP XLR M JACK unbalanced link LINK 3 to 1 1 2 3 GROUND SIGNAL TIP SLEEVE 10 10 Bandwidth 20 Hz to 20 kHz 0 0 5 dB 5 Hz to 90 kHz 0 3 dB Ref 4 dBu 20 Hz to 20 kHz unweighted Stereo Mode 93 dB 94 dB 95 dB 94 dB 90 dB 106 dB unweighted Frequency Response Dynamic R...

Page 4: ...t could damage your speakers and or other equipment 14 INPUT connector This balanced XLR Connecter is used to input the signal CONNECTION CABLES In this chapter you ll find the wiring diagrams for the connectors to be used with your crossover Take care of the connector cables always holding them by the connectors and avoiding knots and twists when coiling them this gives the advantage of increasin...

Page 5: ...ctor outputs the High band signal 4 HIGH MID OUTPUT connector This connector outputs the High Mid band signal 8 MODE button In mono 4 way mode the right button must be pressed Please observe the labels on the the rear panel of the unit Always switch off the entire system before you press this button as it produces heavy interference noise that could damage your speakers and or other equipment 11 L...

Page 6: ... 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 contro...

Page 7: ...utton as it produces heavy interference noise that could damage your speakers and or other equipment 9 LOW SUM button In stereo mode the two Low paths can be summed by the LOW SUM button and routed to the Low output of channel 1 which is particularly useful in systems using additional subwoofers 12 LOW LF SUM OUTPUT connector This connector outputs the Low band signal 13 XOVER FREQ button This but...

Page 8: ...ce noise that could damage your speakers and or other equipment 9 LOW SUM button In stereo mode the two Low paths can be summed by the LOW SUM button and routed To the Low output of channel 1 which is particularly useful in systems using additional subwoofers 14 INPUT connector This balanced XLR Connecter is used to input the signal Stereo 3 way operation Firstly activate stereo 3 way mode by mean...

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