Alto MAXIDRIVE2.3+ User Manual
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Alto MAXIDRIVE2.3+ User Manual

2 way stereo digital crossover
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User's Manual
2 WAY STEREO
MAXIDRIVE2.3+
DIGITAL CROSSOVER
R
LTO
www.altoproaudio.com
Version 1.5 October 2005
English

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Summary of Contents for Alto MAXIDRIVE2.3+

  • Page 1 User's Manual 2 WAY STEREO MAXIDRIVE2.3+ DIGITAL CROSSOVER www.altoproaudio.com Version 1.5 October 2005 English...
  • Page 2 Fuse SAFETY RELATED SYMBOLS To prevent fire and damage to the product, use only the recommended fuse type as indicated in this CAUTION manual. Do not short-circuit the fuse holder. Before RISK OF ELECTRIC SHOCK DO NOT OPEN replacing the fuse, make sure that the product is OFF and disconnected from the AC outlet.
  • Page 3 PREFACE Dear Customer: Thanks for choosing MAXIDRIVE2.3+ 2 - Way Stereo Digital Crossover and thanks for choosing one of the results LTO AUDIO TEAM job and researches. For our LTO AUDIO TEAM, music and sound are more than a job...are first of all passion and let us say our obsession! We have been designing professional audio products for a long time in cooperation with some of the major brands in the world in the audio field.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS 1. INTRODUCTION ........................... 4 2. FEATURES .............................4 3. CONTROL ELEMENTS .........................4 3.1 The Front Panel 3.2 The Rear Panel 4. GETTING STARTED ..........................4.1 Configuration of The System 4.2 Adjust The Input Signal 4.3 First Setup 4.4 System Configuration 4.5 Number of Presets 4.6 Type of Preset...

  • Page 5: Introduction

    1. INTRODUCTION Your MAXIDRIVE2.3+ is a 2-Way Stereo Digital Crossover and it is a powerful versatile signal processor. The apparatus will provide 2, 3 or 4 -way mono X-over with 4 outputs. Thanks to the use of selected and expensive components, the performances of MAXIDRIVE2.3+ are worth much more than its price: you can set the input and output routing configuration only through recalling one of the Presets included in the internal memory.

  • Page 6: The Rear Panel

    7.ENTER Key The key allows you to access to the selected editing page ressing this key, y ou can edit and confirm the required value of parameter. 8.ESC Key The key allows you to exit the selected editing page. It can be also used to reject the value to return to the stored value.

  • Page 7: Getting Started

    4. GETTING STARTED The powerful versatile signal processor MAXIDRIVE2.3+ is mainly designed for use with audio systems. Its routing configurations of the input and output can be only set by recalling one of the PRESETS included in the internal memory. So the user must be very clear about the main function of the unit in order to get a best operation of your MAXIDRIVE2.3+.

  • Page 8: First Setup

    Proceed as follows: Keep the MAXIDRIVE2.3+ outputs in MUTE status (LEDs light on). Feed a signal in on the MAXIDRIVE2.3+'s input and watch the INPUT LEVEL A-B LED ladders. To obtain a good signal/noise ratio, i.e. an up-front distortion-free signal, keep the signal quite high, but make certain the red CLIP LED doesn't light up continually.

  • Page 9: System Configuration

    Disable the MUTE function on the outputs you intend using and listen the sound, carry out instrumental checks (if you have the necessary equipment) and any corrections required. Then, if necessary, adjust the values of the following functions: Output EQ Output equalizers Output Limiter Output limiters Note: In this first phase of setting up your sound system, the adjustment of these functions (which if not Indis -pensable during installation) can wait.

  • Page 10: Type Of Preset

    4.6 Type of PRESET A 1 3 B 2 4 2 x 2 W There are 2 categories of PRESETS: F = Factory PRESETS factory programmed, cannot be permanently changed. These include all the system's usable configurations. These are the starting points for Creating User PRESETS from scratch. can be programmed by users.

  • Page 11: System Protection

    4.9.System Protection A 1 3 B 2 4 A 1 3 B 2 4 2 x 2 W 2 x 2 W These indications appear when the LOCK function ( UTILITY menu) is enabled, i.e. when the system is totally ( ) or partially ( ) protected against accidental or unauthorized changes (even if temporary).
  • Page 12 Press ENTER. The system returns to default status and the display shows the information on the PRESET that has just been loaded. A 1 3 B 2 4 2 x 2 W Note: In the example, Factory PRESET #2 , named "2x2W" has been loaded: Its system configuration is Input A signal assigned to outputs 1 and 3;...

  • Page 13: Delay Menu

    If you want to assign a new name to the PRESET you're storing: - use the keys to position the cursor on the required character - use DIAL to enter the alphanumeric value wanted - after finishing, press ENTER. P r e s O P E R A T I O N 5.2.Delay Menu Use this menu to work on the systems delay lines.
  • Page 14 Output Delay only delays the signal of a specific output. Also called Channel Delay, output delay is mainly used to compensate for the distance between different blocks of the same sound system (for example clusters) or to correct internal alignment of a speaker enclosure components.

  • Page 15: Edit Menu

    The values can be set in the following ranges: OUTPUT DELAY 0 P 1 D E L A Y 2 9 2 u S unit range step 0.0 ~ 100.0 0 ~ 100000 0 ~ 291 0 ~ 291271 The values can be set in the following ranges: OUTPUT DELAY OUTPUT DELAY OUTPUT DELAY...
  • Page 16 5.3.1 Input Gain Input gain control. I n p u t G a i n Allows to adjust the amplification of the signal fed in through Inputs A and B. Editing values are in the range +6dB ~ -30dB, with 0.5dB steps. I N A G A I N - 2 .
  • Page 17 Each equalizer has 5 pages (one for each filter), showing the name of the input it affects and the number of the filter. I N A E Q 1 1 . 0 - 5 . 0 The following editable parameters are available for each filter: a.
  • Page 18 Peaking Notch d. Gain Allows to control the boost or cut of the selected frequencies. It's not used with the Notch Filter, which has a fixed cut. I N A E Q 1 1 . 0 - 5 . 0 Peaking Low Shelving High Shelving...
  • Page 19 Each Xover has 2 slightly different pages (one for each filter), where the name of the output it affects and the type of filter are shown. L P F h r u H P F h r u O P 1 1 k 0 0 H z 1 k 0 0 H z Output 1 - Low Pass Filter...
  • Page 20 Phase Allows fine control (in 5 steps) of the signal's phase. The effect of this control is summed with that of the Output Polarity function (0 ~ 180 ). In this way it's possible to adjust the phase of each individual output with 5 steps through a full 360 . Note: this control is only in the Low-Pass Filter window.
  • Page 21 5.3.6 Output Gain Output level control Allows to adjust the signal level of each individual output. O u t p u t G a i n Editing values are between +6dB ~ -30dB, with 0.5dB steps. O P 1 G A I N - 6 .

  • Page 22: Utility Menu

    b. Reaction Times Allows to choose between 3 types of Limiter reaction speed. In fact, these are attack and release times that are optimised so that the Limiter reacts more or less rapidly when the signal exceeds or drops below the threshold: Fast short times, suited to rapid Limiter operation.
  • Page 23 menu Units Delay Unit UTILITY Lim. Thresh. Unit Temperature Unit Misc. Setup Input Select Output Meters Temperature Wake Up LCD Contrast Lock Lock Ganging Input Ganging Output Ganging 5.4.1 UNITS SUBMENU Units Delay Unit Lim. Thresh. Unit Temperature Unit Used this submenu to choose the measurement units to be used with certain functions. U n i t s a.
  • Page 24 b. Lim. Thresh. Unit Used to set the measurement units for the threshold of the Limiter ( EDIT menu - Output Limiter). The options include: dBu = decibel (0 dBu = 0.775 V rms) - V = volt L i m . T r e s h U n i t L i m .
  • Page 25 b. Temperature Used to key in the value of the environmental temperature of place of installation. The system uses this value to automatically compensate for the differentials due to the difference speed of sound Transmission according to the air temperature. This allows to set the delays during the sound-check and only have to reset them automatically when necessary (For example during a concert, in the event of big jumps in temperature, etc.).
  • Page 26 This function is very useful whenever even temporary changes or tampering with the settings stored in the system must be prevented. For example: fixed installations used by several operators (discotheques, clubs, conference halls, etc.), sound system rental, etc. How to enable protection First of all, choose the protection mode: Two modes are available: Total:...
  • Page 27 Note: alongside the symbol of Total or Partial protection, the letter may also appear. This means that the system is protected, but the PRESET in question has undergone one or more changes that have not yet been stored. You can however switch the system on and off without any problems, as the current settings are kept in the buffer memory.
  • Page 28 IMPORTANT: Precisely for its characteristics, the Ganging function affects the way in which the relative para- meters audio are edited or represented: As soon as Inputs and/or Outputs are ganged, the various menu pages only show the values that can actually be used.

  • Page 29: Connections

    6. CONNECTIONS The following diagrams show the schemes of the recommended cables and some connection examples referred to various system configurations. Inputs A & B GROUND BALANCED XLR-M HOT (+) COLD ( ) Inputs A & B SLEEVE GROUND BALANCED JACK RING HOT (+) COLD ( )

  • Page 30: Organization

    7.2 Organization The following examples will help you well use and connect the unit. a. A13 B24 2-WAY STEREO PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT PROT CLIP CLIP CLIP CLIP POWER POWER CH-A CH-A CH-B CH-B PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT PROT CLIP...
  • Page 31 b. A1 B2 S34 2-WAY MONO with MONO SUB + 2MONO FULL-RANGE OUT SUB L+R MONO AUX L+R PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT PROT CLIP CLIP CLIP CLIP POWER POWER CH-A CH-A CH-B CH-B PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT PROT CLIP...
  • Page 32 c. A12 B3 S4 3-WAY MONO with MONO SUB +1MONO FULL-RANGE OUT HIGH PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT PROT CLIP CLIP CLIP CLIP POWER POWER CH-A CH-A CH-B CH-B PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT PROT CLIP CLIP CLIP CLIP POWER POWER...
  • Page 33 d. A123 B4 4-WAY MONO HIGH PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT PROT CLIP CLIP CLIP CLIP POWER POWER CH-A CH-A CH-B CH-B PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT PROT CLIP CLIP CLIP CLIP POWER POWER CH-A CH-A CH-B CH-B AC INPUT Apparaten skall anslutas till PUSH...
  • Page 34 e. 4W 4-WAY MONO with B-SUB + 2MONO FULL-RANGE OUT HIGH PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT PROT CLIP CLIP CLIP CLIP POWER POWER CH-A CH-A CH-B CH-B PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT PROT CLIP CLIP CLIP CLIP POWER POWER CH-A CH-A...

  • Page 35: Technical Specifications

    8. TECHNICAL SPECIFICATIONS INPUT section Connectors 2 x COMBO Nominal input sensitivity 0 dB (0.775 V) Input Impedance 30kOhm, electronically balanced Maximum Input Level +20dBu Input Gain -30 / +6 dB variable in 0.5 dB steps Connectors 4 x XLR-M Output Section Output Impedance 600 Ohms, electronically balanced...

  • Page 36: Warranty

    9. WARRANTY 1. WARRANTY REGISTRATION CARD To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date. All the information presented in this Warranty Registration Card gives the manufacturer a better understanding of the sales status, so as to purport a more effective and efficient after-sales warranty service.
  • Page 37 No. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, Taiwan http://www.altoproaudio.com Tel: 886-4-22313737 email: alto@altoproaudio.com Fax: 886-4-22346757 All rights reserved to ALTO. All features and content might be changed without prior notice. Any photocopy, translation, or reproduction of part of this manual without written permission is forbidden. Copyright...

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