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2-Way, 3-Way
4-Way Crossovers 223/223XL - 234/234XL
Operation
Manual
®
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WARNING CAUTION FOR YOUR PROTECTION, PLEASE READ THE FOLLOWING: RISK OF ELECTRIC SHOCK WATER AND MOISTURE: Appliance should not be used near water (e.g. near a DO NOT OPEN bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken so that objects do not fall and liquids are not spilled ATTENTION: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR into the enclosure through openings. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC POWER SOURCES: T
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2-Way, 3-Way 1 4-Way Crossovers 223/223XL - 234/234XL TABLE OF CONTENTS WARRANTY....................................................................................................................2 INTRODUCTION .......................................................................................................................................................2 INSPECTION .............................................................................................................................
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2-Way, 3-Way 2 223/223XL - 234/234XL 4-Way Crossovers 1. The warranty registration card that accompanies this product must be WARRANTY mailed within 30 days after purchase date to validate this warranty. 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 o
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2-Way, 3-Way 4-Way Crossovers 223/223XL - 234/234XL 3 INSPECTION Before going any further, you should take time to fill out your warranty registration card and inspect the contents of the shipping carton. Inside both the 223/223XL and 234/234XL boxes you should find the following: • either the dbx model 223, 223XL, 234, or the 234XL crossover. • operation manual (you are reading it!) • 4 rack screws and washers • power cord. The contents of this manual are subject to change at any time without
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2-Way, 3-Way 4 223/223XL - 234/234XL 4-Way Crossovers 1 2 3 4 5 6 7 8 9 10 11 12 CHANNEL ONE CHANNEL TWO 0 240 2.4k -10 -10 -10 0 240 2.4k -10 -10 -10 140 350 1.4k 3.5k 140 350 1.4k 3.5k -6 +6 -6 +6 -30 -30 70 680 700 0 -30 0 -30 0 70 680 700 0 -30 0 -30 0 6.8k 6.8k 40 Hz INV INV INV 40 Hz INV INV INV x10 x10 -12 +12 45 960 450 9.6k - +6 - +6 - +6 -12 +12 45 960 450 9.6k - +6 - +6 - +6 dB Hz Hz dB dB dB dB Hz Hz dB dB dB GAIN XOVER FREQ XOVER FREQ
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2-Way, 3-Way 4-Way Crossovers 223/223XL - 234/234XL 5 dbx 223/223XL Front Panel Note: There are no front panel differences between the 223 and the 223XL. Therefore the 223XL is shown below, representing both the 223 and the 223XL. 1 2 3 4 5 6 7 8 CHANNEL ONE CHANNEL TWO 0 240 -10 -10 0 240 -10 -10 140 350 140 350 -6 +6 -6 +6 70 -30 0 -30 0 70 -30 0 -30 0 680 680 40 Hz INV INV 40 Hz INV INV x10 x10 -12 +12 45 960 - +6 - +6 -12 +12 45 960 - +6 - +6 d
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2-Way, 3-Way 6 223/223XL - 234/234XL 4-Way Crossovers The mode switches on the back panel of the unit are used to select one 234/234XL-223/223XL REAR of the three modes of operation in the 234/234XL and one of two modes PANEL OPERATIONS of operation in the 223/223XL. There could be disastrous consequences if the crossover were improperly setup or the switches were mistakenly MODE SWITCHES pushed during the regular operation of a sound system. Therefore great care should be taken when setting the
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2-Way, 3-Way 4-Way Crossovers 223/223XL - 234/234XL 7 On the back panel of the 234/234XL, there are markings to help you con- nect the source devices and amplifiers to your crossover. To operate the 234/234XL in stereo 3-way operation, follow the top row of markings hori- zontally along the length of the 234/234XL. For stereo 2-way operation of the 234/234XL, use the second row of markings directly above the con- nectors. For mono 4-way operation of the 234/234XL, use the markings directly below
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2-Way, 3-Way 8 223/223XL - 234/234XL 4-Way Crossovers crossover, as this may cause severe damage not covered under the dbx warranty. Connect the power cord to the crossover first, then to a power source that is properly grounded. Never lift the ground as a shock hazard may result. After you have safely plugged in the crossover, turn on the source device(s). Turn the amplifiers’ outputs all the way down (-∞) and turn on the amplifiers. All of the elements of your sound system should now be on, an
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2-Way, 3-Way 4-Way Crossovers 223/223XL - 234/234XL 9 anyway, it will not detract from the true stereo picture of the source mate- rial. RACK MOUNTING, GROUNDING We have provided 4 rack screws and washers for easy mounting in stan- AND SAFETY 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
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2-Way, 3-Way 10 223/223XL - 234/234XL 4-Way Crossovers WEAK AND/OR DISTORTED AUDIO • Check that a clean signal is being fed to the crossover. • Confirm that the input wiring is correct. • Check that the grounds of the audio signal path and the chassis and power line of all units in the system are connected. HUM AND/OR BUZZ If you suspect that the hum is caused by a ground loop: • Systematically remove and/or connect the audio grounds of the devices in the signal path. • Remember, for safety you
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2-Way, 3-Way 4-Way Crossovers 223/223XL - 234/234XL 11 INPUT: dbx 234/234XL-223/223XL Connectors: 1/4” TRS (223/234) or XLR (234/234XL) SPECIFICATIONS Type: Electronically balanced/unbalanced, RF filtered Impedance: Balanced > 50 kΩ, unbalanced > 25 kΩ Max Input Level: +22 dBu typical, balanced or unbalanced CMRR: >40 dB, typically > 55 dB at 1 kHz OUTPUT (223/234): Connectors: 1/4” TRS Type: Impedance-balanced/unbalanced, RF filtered Impedance: Balanced 200 Ω, unbalanced 100 Ω Max Output Level:
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2-Way, 3-Way 12 223/223XL - 234/234XL 4-Way Crossovers DECLARATION OF CONFORMITY Manufacturer’s Name: dbx Professional Products Manufacturer’s Address: 8760 S. Sandy Parkway Sandy, Utah 84070, USA declares that the product: Product name: dbx223 and dbx234 Product option: None conforms to the following Product Specifications: Safety: EN 60065 (1993) IEC65 (1985) with Amendments 1, 2, 3 CAN/CSA E65-94 EMC: EN 55013 (1990) EN 55020 (1991) Supplementary Information: The product herewith complies wi
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2-Way, 3-Way 4-Way Crossovers 223/223XL - 234/234XL 13 DECLARATION OF CONFORMITY Manufacturer’s Name: dbx Professional Products Manufacturer’s Address: 8760 S. Sandy Parkway Sandy, Utah 84070, USA declares that the product: Product name: dbx223XL and dbx234XL Product option: None conforms to the following Product Specifications: Safety: EN 60065 (1993) IEC65 (1985) with Amendments 1, 2, 3 CAN/CSA E65-94 EMC: EN 55013 (1990) EN 55020 (1991) Supplementary Information: The product herewith complies
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® 8760 South Sandy Pkwy. Sandy, Utah 84070 Phone: (801) 568-7660 Fax: (801) 568-7662 Int’l Fax: (219) 462-4596 A Harman International Company Questions or comments? E•mail us at: customer@dbxpro.com or visit our World Wide Web home page at: http://www.dbxpro.com This manual is dbx part number: 18-2155-C 03/19/99
