background image

2-Way, 3-Way

4-Way Crossovers

223/223XL - 234/234XL

R

ACK

M

OUNTING

, G

ROUNDING

AND

S

AFETY

T

ROUBLESHOOTING

N

O

S

OUND

A

BNORMAL

A

UDIO

O

UTPUT

anyway, it will not detract from the true stereo picture of the source mate-

rial.

We have provided 4 rack screws and washers for easy mounting in stan-

dard audio racks. You should avoid mounting the unit near large power

transformers or motors. Route the AC cord away from audio lines and

plug it into a power source close by. If the power cord must cross over

audio lines, you should take care to have them cross at 90 degree

angles. 

The input and output connectors are balanced/unbalanced 1/4” TRS- type

connectors. The tip of the plug is wired as hot (+), the ring is wired as

cold (-), and the sleeve is wired as the ground or shield. 

The 234/234XL-223/223XL crossovers have differentially balanced input

and output circuits. Balanced wiring is recommended, even with unbal-

anced source devices, especially when running long paths. Twin-conduc-

tor, shielded cable is more reliable since it does not depend on the shield

wire itself to complete the signal connection. Using twin conductor cable,

a broken shield may only result in a slight increase in noise or hum due

to the lack of shielding. You may also use unbalanced cables to connect

to and from the crossover.

If there appears to be no power:

• Check that either the stereo or mono LED on the front panel of the

234/234XL-223/223XL is lit. 

• Check that the power cord is seated properly in the back panel of the

crossover and that it is plugged into an active AC power source.

If there appears to be power, but no audible signal:

• Confirm that active audio lines are connected to the crossover’s

inputs and outputs.

• Check that both the input and output gain controls are advanced suffi-

ciently.

• Check to make sure that you have turned up the amplifiers’ outputs.

• Ensure that the proper mode for your setup has been selected via the

rear panel mode switches. 

• Check the LF Sum switch.

• Check the x10 switch. This changes the range of the crossover fre-

quency from 45 - 960 Hz to 450 Hz - 9.6 kHz. 

9

®

Summary of Contents for 223/223XL

Page 1: ...2 Way 3 Way 4 Way Crossovers 223 223XL 234 234XL Operation Manual ...

Page 2: ...qualified service personnel who should refer to the table below The green yellow wire shall be connected directly to the unit s chassis WARNING If the ground is defeated certain fault conditions in the unit or in the system to which it is connected can result in full line voltage between chassis and earth ground Severe injury or death can then result if the chassis and earth ground are touched sim...

Page 3: ...b home page at http www dbxpro com A Harman International Company TABLE OF CONTENTS WARRANTY 2 INTRODUCTION 2 INSPECTION 3 234 234XL FRONT PANEL OPERATION 3 223 223XL FRONT PANEL OPERATION 5 234 234XL 223 223XL REAR PANEL OPERATIONS 6 234 234XL 223 223XL AUDIO CONNECTIONS 7 ELECTRICAL CONNECTIONS 7 FEATURES 7 RACK MOUNTING GROUNDING AND SAFETY 8 TROUBLESHOOTING 9 234 234XL 223 223XL SPECIFICATIONS...

Page 4: ...nty Proof of purchase is considered to be the burden of the consumer 2 dbx warrants this product when bought and used solely within the U S to be free from defects in materials and workmanship under nor mal use and service 3 dbx liability under this warranty is limited to repairing or at our discre tion replacing defective materials that show evidence of defect provid ed the product is returned to...

Page 5: ... for reversing the polarity on the Low Output An LED indicates that the phase is inverted 6 12 HIGH OUTPUT Controls the High frequency output with a range of to 6 dB 17 24 PHASE INVERT Switch for reversing the polarity on the High Output An LED indicates that the phase is inverted 19 STEREO LED indicating stereo mode operation although this control is labeled as LOW MID it operates as the crossove...

Page 6: ...3 PHASE INVERT Switch for reversing the polarity on the Mid Output An LED indicates the selection 6 12 HIGH OUTPUT Controls the High Frequency output with a range of to 6 dB 17 24 PHASE INVERT Switch for reversing the polarity on the High output An LED indicates the selection 19 STEREO LED indicating stereo mode operation MONO 4 WAY MODE In 4 way mono operation the controls are marked ABOVE the ho...

Page 7: ...he High Output An LED indi cates the selection 14 STEREO LED indicating stereo mode operation MONO 3 WAY MODE In 3 way mono operation the controls are marked ABOVE the horizontal blue line Front panel controls not described in this section are not active in mono 3 way mode LEDs are disabled for controls which are non functional in this mode 1 INPUT GAIN Controls the input level with 12 dB of gain ...

Page 8: ...s on the crossover to set it to the proper mode of operation either stereo 2 way stereo 3 way or mono 4 way for the 234 234XL or stereo 2 way or mono 3 way for the 223 223XL Use the literature that came with your speaker system to properly set up the mode of operation and crossover frequencies to the manufac turer s specifications There is one of the four possible mode button combinations for the ...

Page 9: ...esigna tion applies only to that mode of operation Before connecting anything to the crossover make sure it is not con nected to any power source Be sure that the source device equalizer compressor mixing console etc for the 234 234XL 223 223XL is turned off Connect the output s of the source device to the inputs of the crossover following the rear panel markings carefully Make sure that the ampli...

Page 10: ... switch ALWAYS ensure that the amplifiers feeding all speaker systems are turned off or that the input gain controls on the power amplifiers are turned down before changing the setting of the X10 switch Not doing so may send a spurious signal to the outputs of the crossover when the X10 switch is engaged and may damage speaker systems which are pow ered at the time of the spurious signal Every out...

Page 11: ... when running long paths Twin conduc tor shielded cable is more reliable since it does not depend on the shield wire itself to complete the signal connection Using twin conductor cable a broken shield may only result in a slight increase in noise or hum due to the lack of shielding You may also use unbalanced cables to connect to and from the crossover If there appears to be no power Check that ei...

Page 12: ...chassis ground Never lift a safety ground If you suspect the hum is not caused by a ground loop Check the audio at an earlier stage in the audio chain Low level equipment should be mounted away from power amplifiers to avoid induction of this type of hum Be certain that all audio wiring except for loudspeaker lines is well shield ed and that low level wiring is not run parallel to and or in close ...

Page 13: ...gh 45 to 960 Hz or 450 Hz to 9 6 kHz x10 setting Low Mid 45 to 960 Hz or 450 Hz to 9 6 kHz x10 setting Mid High 450 Hz to 9 6 kHz 234 234XL Mono Mode Low Low Mid 45 to 960 Hz or 450 Hz to 9 6 kHz x10 setting Low Mid High Mid 450 Hz to 9 6 kHz High Mid High 450 Hz to 9 6 kHz 223 223XL Stereo Mode Low High 45 to 960 Hz or 450 Hz to 9 6 kHz x10 setting 223 223XL Mono Mode Low Mid 45 to 960 Hz or 450 ...

Page 14: ...ents 1 2 3 CAN CSA E65 94 EMC EN 55013 1990 EN 55020 1991 Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 72 23 EEC and the EMC Directive 89 336 EEC as amended by Directive 93 68 EEC dbx Professional Products Vice President of Engineering 8760 S Sandy Parkways Sandy Utah 84070 USA February 6 1997 European Contact Your local dbx Sales and S...

Page 15: ...endments 1 2 3 CAN CSA E65 94 EMC EN 55013 1990 EN 55020 1991 Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 72 23 EEC and the EMC Directive 89 336 EEC as amended by Directive 93 68 EEC dbx Professional Products Vice President of Engineering 8760 S Sandy Parkways Sandy Utah 84070 USA March 9 1999 European Contact Your local dbx Sales and ...

Page 16: ...01 568 7660 Fax 801 568 7662 Int l Fax 219 462 4596 Questions or comments E mail us at customer dbxpro com or visit our World Wide Web home page at http www dbxpro com A Harman International Company This manual is dbx part number 18 2155 C 03 19 99 ...

Reviews: