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Dual Compressor/Gate
User Manual
Professional Audio Equipment
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IMPORTANT SAFETY INFORMATION WARNING FOR YOUR PROTECTION READ THE FOLLOWING: KEEP THESE INSTRUCTIONS HEED ALL WARNINGS FOLLOW ALL INSTRUCTIONS THE APPARATUS SHALL NOT bE ExPOSED TO DRIPPING OR SPLASHING LIqUID AND NO ObjECT FILLED WITHI LIqUID , SUCH AS vASES, SHALL the symbols shown above are internationally accepted symbols that warn of bE PLACED ON THE APPARATUS. potential hazards with electrical products. the lightning flash with arrowpoint in CLEAN ONLY WITH A DRY CLOTH. an equilateral
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IMPORTANT SAFETY INFORMATION L e M ectro G a Inet c DL ec Itara on of coMP IBILI ta ty MI confor ty manufacturer’s Name: dbx professional products manufacturer’s Address: 8760 s. sandy parkway this unit conforms to the product specifications noted on the sandy, utah 84070, usA Declaration of Conformity. operation is subject to the following two declares that the product: conditions: product name: dbx 266xs Note: product name may be suffixed by the eu. • this device may not cause har mf
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dbx 266xs Table of Contents Section 1- Introduction .......................... 1 1.1 Commom Compressor Applications .... 1 1.2 Common Gating Applications ........... 1 1.3 Service Contact Info ....................... 2 1.4 Warranty ....................................... 3 Section 2- Getting Started ...................... 4 2.1 Rear Panel Connections .................. 4 2.2 Front Panel Connections ................. 5 Section 3 - Making Connections .............. 8 Section 4 - Technical Sup
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dbx 266xs Introduction Section 1 Section 1- Introduction .......................... 1 1.1 Commom Compressor Applications .... 1 Section 1 - Introduction 1.2 Common Gating Applications ........... 1 1.3 Service Contact Info ....................... 2 Congratulations on choosing the dbx 266xs Compressor/Gate. The 266xs provides traditional 1.4 Warranty ....................................... 3 dbx sonic quality and performance for the working musician, DJ, studio operator or anyone who needs a
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dbx 266xs Introduction Section 1 1.3 Service Contact Info If you require technical support, contact dbx Technical Support. Be prepared to accurately describe the problem. Know the serial number of your device - this is printed on a sticker attached to the chassis. If you have not already taken the time to fill out your warranty registration card and send it in, please do so now. You may also register online at www.dbxpro.com. Before you return a product to the factory for service, we recomme
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dbx 266xs Introduction Section 1 1.4 Warranty This warranty is valid only for the original purchaser and only in the United States. 1. The warranty registration card that accompanies this product must be mailed within 30 days after purchase date to validate this warranty. You can also register online at www.dbxpro.com. Proof-of-purchase is considered to be the responsibility of the consumer. A copy of the original purchase receipt must be provided for any warranty service. 2. dbx warrants th
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dbx 266xs Getting Started Section 2 Section 2 - Getting Started 2.1 Rear Panel Connections IEC Power Cord Receptacle The dbx 266xs comes with a power supply that will accept voltages ranging from 100V-120V at frequencies from 50Hz-60Hz. An IEC cord is included. EU version accepts 220V-240V at frequencies from 50Hz-60Hz. WARNING: Be sure to verify your actual line voltage is the same as the voltage level printed below the AC power receptacle. Connection to an inappropriate powe
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dbx 266xs Getting Started Section 2 2.2 Front Panel Connections STEREO COUPLE Switch This switch sets the 266xs for Stereo or Dual Mono operation. Press the STEREO COUPLE switch in for stereo operation where Channel 1 becomes the master controller for both channels. All of Channel 2’s controls, switches, and LEDs will be disabled (except for the Channel 2 GAIN REDUCTION meter), since Channel 2 is the slave. With the STEREO COUPLE switch out, the unit functions as two separate mono compressor
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dbx 266xs Getting Started Section 2 ® OVEREASY Switch Depress this switch to select the OverEasy® compression characteristic. The amber THRESHOLD LED turns on when the signal is in the OverEasy region. When the switch is out, the 266xs operates as a hard-knee compressor, and the amber LED does not light. Compressor THRESHOLD Control and LEDs (BELOW/OVEREASY/ABOVE) Adjust this control to set the threshold of compression from - 40dB to +20dB. In hard-knee mode, the threshold of compression is d
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dbx 266xs Getting Started Section 2 Compressor ATTACK and RELEASE Control The ATTACK control sets the amount of time it takes the 266xs to begin compressing a signal once the detector has sensed a signal above threshold. The ATTACK range is from FAST (for a tighter and more noticeable compression effect with very little overshoot) to SLOW (for more delayed, gradual compression). A very fast ATTACK setting will cause the 266xs to act like a peak limiter even though RMS detection circuitry is
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dbx 266xs Section 3 Making Connections Expander/Gate RATIO Control This control sets the amount of attenuation applied to the input signal once it is below the threshold, from gentle downward expansion (appropriate for mixed program, vocals, etc.), to a hard gating effect (which can be useful for percussion). Fairly low RATIO (and higher Expander/Gate THRESHOLD) settings work best for downward expansion, whereas higher RATIO settings (clockwise towards MAX) work best for gating. If a setting
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dbx 266xs Technical Support and Facts Section 4 Section 4 - Technical Support and Facts 4.1 Technical Support The 266xs is an all-solid-state product with components chosen for high performance and excellent reliability. Each 266xs is tested, burned-in and calibrated at the factory and should require no internal adjustment of any type throughout the life of the unit. We recommend that your 266xs be returned to the factory only after referring to the manual and consulting with dbx Customer Serv
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dbx 266xs Appendix Section A Section A - Appendix A.1 Technical Specifications Note: 0dBu = 0.775VRMS Specifications are subject to change INPUT (Balanced or Unbalanced): Impedance: > 40kΩ Max Level: +22dBu OUTPUT (Impedance Balanced): Impedance: +4dBu: Balanced: 100Ω Unbalanced: 50Ω -10dBu: Balanced: 1kΩ Unbalanced: 500Ω Max Level: > +21dBu, > +18dBm (into 600Ω) SIDECHAIN INSERT: Input Impedance: >10kΩ Output Impedance: 2kΩ Max Input Level: +22dBu Max Output Level: >+2
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dbx 266xs Appendix Section A A.2 Block Diagram 11
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8760 South Sandy Parkway • Sandy, Utah 84070 Phone: (801) 568-7660 • Fax (801) 568-7662 Int’l Fax: (801) 568-7583 Questions or comments? Contact us at www.dbxpro.com Printed in China 18-0806-A
