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SABINE FBX1220 Operating Instructions Manual

Feedback exterminator
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Summary of Contents for SABINE FBX1220

  • Page 1: Table Of Contents

    SECTION THrEE — ENGINEErING SPECIFICaTIONS SECTION FOUr — OPEraTING INSTrUCTIONS 4.1. Before You Begin 4.2. How To Operate your FBX1220 / FBX2420 SECTION FIVE — HOw TO USE FBX FEaTUrES 5.1. Input / Output Level Switches 5.2. FBX Filter Control 5.3.

  • Page 2: Section One - Front & Back Panels

    9. A/C Power Input 11. Power Switch Previous settings retained during power-off. The FBX1220 & FBX2420 Series is factory configured to operate at 230 VAC. Using the wrong input voltage may cause 12. Quarter-inch Output permanent damage to the unit and will void the warranty.

  • Page 3: Section Two - Applications

    • Bypass: True power off bypass • Dynamic Range: >105 dB *Below approximately 200 Hz the feedback filters • Headroom: +23 dB peak @ 4 dBV become slightly wider to increase the feedback and rumble capture speed at these low frequencies. LIT-FBX1220-1224-OP-EN-080208.pmd - ks...

  • Page 4: Section Four - Operating Instructions

    SeCtIon FoUr — oPeratInG InStrUCtIonS 4.1. Before You Begin These instructions apply to both the FBX1220 and the FBX2420. The 2420 is a dual-mono version of the 1220. Your FBX Feedback Exterminator will improve any sound reinforcement system. The instructions presume that you are familiar with the fundamentals of sound reinforcement.

  • Page 5: How To Operate Your Fbx1220 / Fbx2420

    4.2. How to operate your FBX1220 / FBX2420 Place equipment & make connections. Follow these procedures to get maximum gain before feedback a. Patch your FBX1220 or FBX2420 into system and make all connec- Power Tips tions (refer to pages 2 and 3 for connection options). b. Place speakers and microphones in performance positions.

  • Page 6: Section Five - How To Use Fbx Features

    5.1. Input / output level Switches Use the two-position switches on the back panel of your FBX1220 / FBX2420 to compensate for input level or output level requirements. NOTE: For unity gain (recommended), set the channel's input & output level switches to the same setting.

  • Page 7: Section Six - Troubleshooting Tips

    Be sure the blue Ready light is on (either flashing or steady) and if it isn’t, press the READY button before your program begins. You’ll know the FBX1220 / FBX2420 is in setup mode when the SETUP button is lit. NOTE: You can manually override Setup mode if necessary.

  • Page 8: Section Seven - Fbx Theory & Practice

    Poor acoustical conditions or misguided use by unsophisticated sound system operators only aggravate the situation. To make matters still worse, a non-Sabine variety of wireless microphone adds yet another level of feedback danger to the picture. Since feedback erupts whenever the distance, location, and gain relationships between a speaker and a microphone reach a critical combination, a mic that can move anywhere results in an ever changing potential for feedback.

  • Page 9: Who Benefits From Fbx

    7 .3.2. Balancing Fixed & Dynamic Filters Your FBX1220, and each channel of your FBX2420, offer a total of 12 FBX filters (com- bined fixed and dynamic), which can be used as needed to exterminate feedback. After years of experience and experimentation, Sabine has settled upon a default balance of 9 fixed and 3 dynamic filters, set at the factory.

  • Page 10: Section Eight - Cautions & Warranty

    Attention! Pour réduire le risque d'incendie ou de choc électrique, ne pas laisser l'appareil sous la plouie ou à l'humidité. The FBX1220 & FBX2420 Series is supplied with one of the follow- Achtung! Dieses Gerät muss schutzgeerdet sein. ing AC power cords: Achtung! Gefar eines elektrischen Stormschlags.

  • Page 11: Limited Warranty

    SAVINGS, ANY INCIDENTAL DAMAGES OR ANY CONSEQUENTIAL DAMAGES ARISING UNITED STATES OR CANADA. ALL EXPORTED PRODUCTS ARE SUBJECT TO WARRANTY OUT OF THE USE OR INABILITY TO USE THE PRODUCT, EVEN IF SABINE HAS BEEN AND SERVICES TO BE SPECIFIED AND PROVIDED BY THE AUTHORIZED DISTRIBUTOR ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
  • Page 12 SaBIne FBX SetUP register your FBX equipment online at Sabine.com Sabine, Inc. • 13301 NW US Highway 441 • Alachua, Florida 32615-8544 USA • Phone: (386) 418-2000 • Fax: (386) 418-2001...

This manual is also suitable for:

Fbx2420

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