User's Manual MAXIDRIVE2.3+ 2 WAY STEREO DIGITAL CROSSOVER R LTO www.altoproaudio.com Version 1.
the recommended fuse type as indicated in this manual. Do not short-circuit the fuse holder. Before replacing the fuse, make sure that the product is OFF and disconnected from the AC outlet. SAFETY RELATED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Protective Ground This symbol, wherever used, alerts you to the presence of un-insulated and dangerous voltages within the product enclosure. These are voltages that may be sufficient to constitute the risk of electric shock or death.
PREFACE Dear Customer: Thanks for choosing MAXIDRIVE2.3+ 2 - Way Stereo Digital Crossover and thanks for choosing one of the results of 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.
TABLE OF CONTENTS 1. INTRODUCTION .....................................................................................................................................4 2. FEATURES .............................................................................................................................................4 3. CONTROL ELEMENTS .........................................................................................................................4 3.1 The Front Panel 3.2 The Rear Panel 4.
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. 2.
7.ENTER Key The key allows you to access to the selected editing page. Pressing this key, you can edit and confirm the required value of parameter. 8.ESC Key The key allows you to exit the selected editing page. It also used to reject the value to enter and return to the stored value. 9.INPUT LEVEL LED Meters The LEDs are used to indicate the level of input A/B.
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+. Before you start your operation, please read the following parts carefully: 4.
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. Find out the output level setting for your mixer (or other unit) and connect it to the input of the MAXIDRIVE2.3+. Adjust the MAXIDRIVE2.
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.
4.6 Type of PRESET A 1 3 B24 2 F 2 x 2W 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. U = User PRESETS can be programmed by users. 4.7 Name of the PRESET A 1 3 B24 2 F 2 x 2W In the example, the name indicates a two-way stereo system. 4.
These indications appear when the LOCK function (UTILITY menu) is enabled, i.e. when the system is totally (T) or partially (P) protected against accidental or unauthorized changes (even if temporary). Protection is ensured by a password, without which editing procedure can't be unlocked. 5.THE MENU MAP CONFIGURATION DESCRIPTION The control software is organized in PRESET, DELAY, EDIT and UTILITY menus, each of which contains the relative types of parameters and functions. 5.1.
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 2 F 2 x 2W B 2 4 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; Input B signal assigned to outputs 2 and 4. 5.1.2 Store & Naming PRESET Use this menu to create new PRESETS, i.e. to save all the current system settings.
If you want to assign a new name to the PRESET you're storing: - use the and 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 e t Nam i ng O P E R A T I ON 5.2.Delay Menu Use this menu to work on the systems delay lines.
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. 5.2.1 Input Delay Use this menu page to adjust the delay lines of Input A, Input B and SUM.
The values can be set in the following ranges: 0P1 OUTPUT DELAY D E LAY 2 9 2 uS unit range step m 0.0 ~ 100.0 0.5 mm 0 ~ 100000 7 ms 0 ~ 291 1 us 0 ~ 291271 21 The values can be set in the following ranges: OUTPUT DELAY OUTPUT 1 HIGH OUTPUT DELAY Loudspeaker Components OP1 DELAY= 0ms Delayed Virtual Alignment #1 Delayed Virtual Alignment #2 18ms(6 5m) 4ms 14ms(5m) OUTPUT 3 LOW OP3 DELAY= 4ms 5.
5.3.1 Input Gain Input gain control. I n p u t Ga 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 NA GA I N - 2 . 5 d B Note: Setting the input signal of a digital unit is particularly important, much more than on an analog unit, as any saturation of the A/D converter due to an excessively high input signal causes a typical particularly distinct noise. To achieve a good signal/noise ratio, i.e.
Each equalizer has 5 pages (one for each filter), showing the name of the input it affects and the number of the filter. I NA 2 k 0 0 EQ1 1 . 0 Pe a k - 5 . 0 The following editable parameters are available for each filter: a. Type of Filter Allows to choose among Peaking, Low or High Shelving with a slope of 6 or 12 dB per octave and Notch filter. I NA 2 k 0 0 Peaking EQ1 1 . 0 Low Shelving Pe a k - 5 . 0 High Shelving Notch b.
Notch Peaking 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 NA 2 k 0 0 EQ1 1 . 0 Pe a k - 5 . 0 Low Shelving Peaking High Shelving The values can be set in the following ranges: ~ ~ ~ 5.3.4 Xover Low-pass and high-pass filters.
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 PF OP1 1 k 0 0 H z H PF OP1 1 k 0 0 H z T h r u 0 Output 1 - Low Pass Filter T h r u Output 1 - High Pass Filter Low Pass Filter The low-pass filter allows all the frequencies below a specific frequency to pass, whereas it cuts all the frequencies above it.
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.
5.3.6 Output Gain Output level control Allows to adjust the signal level of each individual output. Ou t pu t Ga i n Editing values are between +6dB ~ -30dB, with 0.5dB steps. OP1 GA I N - 6 . 5d B Note: The level of each output is shown by the respective OUTPUT LEVEL LED ladder. To avoid distortion, don't let the red CLIP LED light up. As automatic protection, you can also enable the LIMITER (EDIT menu) on the outputs that require it.
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 Normal Slow short times, suited to rapid Limiter operation. Normally more suited to outputs dedicated to high frequencies. intermediate times, suited to the majority of applications.
menu Units UTILITY Delay Unit 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. Un i t s a. Delay Unit Used to set the measurement units in which Delays are expressed (DELAY menu).
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 h r e s h . L i m. T h r e s h . Un i t d Bu Un i t V c. Temperature Unit Used to set the measurement units for the Temperature function (UTILITY menu - Misc. Setup submenu). The options include: C = degrees Centigrade - F = degrees Fahrenheit T emP e r a t u r e T emP e r a t u r e Un i t C Un i t F 5.4.
c. 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.).
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.
Note: alongside the symbol of Total or Partial protection, the letter M 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. Nevertheless, if this is your work setup, it's advisable to store it in a PRESET. To unlock the protection: Access the LOCK submenu.
IMPORTANT: Precisely for its characteristics, the Ganging function affects the way in which the relative parameters 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. This however doesn't mean that the values change immediately. On the contrary, the values remain unchanged (Even if not shown) until new values are entered.
6. CONNECTIONS The following diagrams show the schemes of the recommended cables and some connection examples referred to various system configurations. Inputs A & B 1 GROUND 3 BALANCED XLR-M 2 COLD ( HOT (+) ) Inputs A & B SLEEVE GROUND TIP BALANCED JACK RING COLD ( ) HOT (+) Outputs 1 ~ 4 2 HOT (+) 3 BALANCED XLR-F 1 COLD ( ) GROUND 7. APPLICATION The following diagrams show the MAXIDRIVE2.
7.2 Organization The following examples will help you well use and connect the unit. a.
b.
c. A12 B3 S4 3-WAY MONO with MONO SUB +1MONO FULL-RANGE OUT HIGH MID LOW SUB PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT 1 CLIP SIG SIG CLIP ON R LTO OFF CH-A POWER CH-B 2 2 1 PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT 4 CLIP SIG CLIP SIG 3 ON R LTO OFF POWER CH-A CH-B 4 AC INPUT 14W 3 Apparaten skall anslutas till jordat uttag nar den ansluts 95-240V 50/60Hz FUSE: 95-120V T500mAL till ett natverk 210-240V T315mAL A102 NEW ON 2 OFF 4 MAXIDRIVE2.
d. A123 B4 4-WAY MONO HIGH MID LOW SUB 1 PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT CLIP SIG CLIP SIG ON R LTO OFF CH-A POWER CH-B 2 2 1 PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT 4 CLIP SIG CLIP SIG 3 ON R LTO OFF POWER CH-A CH-B 4 AC INPUT 14W 3 Apparaten skall anslutas till jordat uttag nar den ansluts 95-240V 50/60Hz FUSE: 95-120V T500mAL till ett natverk 210-240V T315mAL A102 PUSH OUTPUTS PWR NEW ON 2 OFF 4 MAXIDRIVE2.
e. 4W 4-WAY MONO with B-SUB + 2MONO FULL-RANGE OUT HIGH MID LOW SUB 1 PROFESSIONAL HIGH POWER STEREO AMPLIFIER PROT CLIP SIG CLIP SIG ON R LTO OFF CH-A POWER CH-B 2 2 1 PROFESSIONAL HIGH POWER STEREO AMPLIFIER 4 PROT CLIP SIG CLIP SIG 3 ON R LTO OFF POWER CH-A CH-B 4 AC INPUT 14W 3 Apparaten skall anslutas till jordat uttag nar den ansluts 95-240V 50/60Hz FUSE: 95-120V T500mAL till ett natverk 210-240V T315mAL A102 PUSH OUTPUTS PWR NEW ON 2 OFF 4 MAXIDRIVE2.
8. TECHNICAL SPECIFICATIONS INPUT section Connectors Nominal input sensitivity Input Impedance Maximum Input Level Input Gain 2 x COMBO 0 dB (0.
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.
SEIKAKU TECHNICAL GROUP LIMITED No. 1, Lane 17, Sec. 2, Han Shi W. Road, Taichung, 401 Taiwan http://www.altomobile.com Tel: 886-4-22313737 email: info@altomobile.com Fax: 886-4-22346757 All rights reserved to ALTO Mobile. Due to continued development in response to customer feedback, product features, specifications and/or internal/external design may be changed without prior notice. No photocopying, translation or reproduction of any part of this user manual is allowed without prior written permission.
