Behringer Super-X Pro CX3400 User Manual
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Behringer Super-X Pro CX3400 User Manual

High-precision stereo 2-way/3-way/mono 4-way crossover with limiters
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User’s Manual
Version 1.1
November 2000
www.behringer.com

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Summary of Contents for Behringer Super-X Pro CX3400

  • Page 1 User’s Manual Version 1.1 November 2000 www.behringer.com...

  • Page 2: Safety Instructions

    SUPER-X PRO CX3400 SAFETY INSTRUCTIONS CAUTION: To reduce the risk of electrical shock, do not remove the cover (or back). No user serviceable parts inside; refer servicing to qualified personnel. WARNING: To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisture.
  • Page 3 It is our philosophy to share our joy with you, because you are the most important member of the BEHRINGER family. With your highly competent suggestions for new products you’ve greatly contributed to shaping our company and making it successful.
  • Page 4 SUPER-X PRO CX3400 SUPER–X ® HIGH-PRECISION STEREO 2-WAY / 3-WAY / MONO 4-WAY CROSSOVER WITH LIMITERS MODEL CX 3400 s Professional high-precision stereo 2-way / 3-way / mono 4-way crossover s World-class performance 24 dB per octave Linkwitz-Riley filters s Absolutely flat summed amplitude response, zero phase difference...

  • Page 5: Table Of Contents

    SUPER-X PRO CX3400 TABLE OF CONTENTS 1. INTRODUCTION........................6 1.1 Multi-way speaker systems ......................6 1.2 SUPER-X PRO: the high-end frequency crossover ................6 2. THE DESIGN CONCEPT ....................... 6 2.1 Before you begin ..........................7 2.2 Control elements ..........................7 2.2.1 Stereo 2-way operation ......................

  • Page 6: Introduction

    1.2 SUPER-X PRO: the high-end frequency crossover The BEHRINGER SUPER-X PRO CX3400 is a high-quality active crossover network that can be used for 2, 3 or even 4-way sound reinforcement systems. Whether you need to set up a system for small clubs or large halls, improve an on-stage monitoring system or enhance your studio monitors with an additional subwoofer: your SUPER-X PRO is the ideal choice for all of these applications.

  • Page 7: Before You Begin

    If the unit is damaged, please do not return it to BEHRINGER, but notify your dealer and the shipping company immediately, otherwise claims for damage or replacement may not be granted.
  • Page 8 SUPER-X PRO CX3400 Fig. 2.2: Proper selection of the two MODE buttons for stereo 2-way operation 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 controls can be seen from the second strip label.

  • Page 9: Stereo 3-Way Operation

    SERIAL NUMBER. Please take the time to have the warranty card filled out completely by your specialized dealer, and return it within 14 days after the date of purchase, so as to be entitled to benefit from our extended warranty. Or use our online registration option available on the Internet at www.behringer.com. 2.2.2 Stereo 3-way operation First, activate stereo 3-way mode by means of the two MODE buttons on the rear panel.
  • Page 10 SUPER-X PRO CX3400 Fig. 2.6: Active control elements on the front panel of the SUPER-X PRO for stereo 3-way operation INPUT control. This control adjusts the input gain from +12 to -12 dB. LOW CUT button. This button activates the 25 Hz highpass filter protecting the woofers against low-frequency signals.

  • Page 11: Mono 4-Way Operation

    SUPER-X PRO CX3400 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. LOW SUM button. In stereo mode, the two Low paths can be summed with the LOW SUM button and routed to the Low output of channel 1, which is particularly useful in systems using additional subwoofers.
  • Page 12 SUPER-X PRO CX3400 LOW OUTPUT control. Controls the output level of the Low band from +6 to -6 dB. LOW PHASE INVERT button. This button reverses the polarity of the Low output. LOW MUTE button. Mutes the Low band. LOW-MID OUTPUT control. Controls the output level of the Low-Mid band from +6 to -6 dB.

  • Page 13: Application

    For making measurements you need a high-grade microphone with a frequency response that should be as linear as possible over the entire frequency range (e.g. BEHRINGER measuring microphone ECM8000), or at least between 90 Hz and 15 kHz. Place the microphone about 5 m in front of the speaker system to be measured, in a height where it is on axis with the drivers of the two frequency bands you wish to measure.

  • Page 14: Finding “Drop-Outs” In The Frequency Response

    (horns, bass reflex cabinet, etc.). The BEHRINGER SUPER-X PRO allows you to delay the Low bands by up to 2 milliseconds. In this way, you can virtually push back a specific speaker cabinet by as much as 68.6 cm (which is quite useful, for example, when you place a constant-directivity horn (CD) on top of a closed speaker cabinet).

  • Page 15: Basics Of Electronic Runtime Correction

    SUPER-X PRO CX3400 3.5.2 Basics of electronic runtime correction It is important to know how the dimensions of time and space are connected with each other, e.g. by using a tape measure and a pocket calculator. Example: a delay of 2 ms corresponds to a distance of 68.6 cm; when you measure an offset of 30 cm you can calculate the necessary delay as follows: 2 ms x 30 / 68.6 = 0.87 ms.

  • Page 16: The Limiters Of The Super-X Pro

    When the speaker offset is greater than 68.6 cm you can only move the speaker cabinets. Runtime correction is not the same as the signal delay applied to offset groups of speakers. Here, the entire signal must be delayed by a much greater amount (a suitable delay circuit is included, for example, in the BEHRINGER ULTRA-CURVE DSP8024).

  • Page 17: Limiter Setup

    3 dB at 3.5 kHz, which then increases by 6 dB/oct. up to 22.5 kHz. 4. INSTALLATION Your SUPER-X PRO CX3400 was carefully packed in the factory and the packaging was designed to protect the unit from rough handling. Nevertheless, we recommend that you carefully examine the packaging and its contents for any signs of physical damage, which may have occurred in transit.

  • Page 18: Mains Connection

    AC power cable. 4.3 Audio connections As a standard, the BEHRINGER SUPER-X PRO CX3400 is equipped with electronically servo-balanced inputs and outputs. The circuit design features automatic hum and noise reduction for balanced signals and thus allows for trouble-free operation, even at highest operating levels.

  • Page 19: Specifications

    SUPER-X PRO CX3400 Fig. 4.2: Different plug types 5. SPECIFICATIONS INPUT Connectors Type Electronically servo-balanced, RF filtered Impedance Balanced >50 kOhms, unbalanced >25 kOhms Max. Input level +22 dBu typical, balanced or unbalanced CMRR >40 dB, typically >55 dB at 1 kHz...
  • Page 20 4.3 kg BEHRINGER is constantly striving to maintain the highest professional standards. As a result of these efforts, modifications may be made from time to time to existing products without prior notice. Specifications and appearance may differ from those listed or illustrated.

  • Page 21: Warranty

    (user included) will void the warranty. shall, at its sole discretion, either repair or replace the product. 6. If an inspection of the product by BEHRINGER shows that the 2. If the warranty claim proves to be justified, the product will be defect in question is not covered by the warranty, the inspection returned to the user freight prepaid.

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