Alto 3.4 User Manual Page 1

MAXIDRIVE3.4COMPACT3 WAY STEREODIGITAL CROSSOVERUser's ManualLTORwww.altoproaudio.comVersion 1.2 August. 2005English

9The of the signal on inputs and is assigned to outputs and .Sum AB 56The system is therefore configured as shown in the following diagram.A13 B24 S56

104.8 PRESET Modifications4.9.System Protection5.THE MENU MAP CONFIGURATION DESCRIPTION5.1.Preset MenuLoad PresetStore PresetDump Out PresetIncoming D

11There are 2 distinct categories of PRESETS:User PRESETS5.1.1 Load PRESETThis menu page allows the required PRESET to be loaded and made operatively.

5.1.2 Store & Naming PRESETUse this menu to create new PRESETS, i.e. to save all the current system settings.To save a PRESET:Press The page appea

To download a PRESET:Use to reach the required PRESET.DIALPress ENTER.Note: The menu page remainsunchanged to allow other to be dumped.PRESETSAll the

5.2.Delay MenuUse this menu to work on the systems delay lines.The practical differences between andDelay Input Delay OutputA Delay is only a processo

5.2.1 Input DelayUse this menu page to adjust the delay lines of Input A, Input B and SUM.The values can be set in the following ranges:The measuremen

16The values can be set in the following ranges:The values can be set in the following ranges:5.3 Edit menuThe values can be set in the following rang

17Allows 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.17Inpu

18b. Centre Frequency / Cutoff FrequencyPeakingLow Shelving High ShelvingNotchc. BandwidthAllows to choose the width in octaves of the Peaking or Notc

1SAFETY RELATED SYMBOLSCAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENThis symbol, wherever used, alerts you to the pre-sence of un-insulated and dangerous v

19The values can be set in the following ranges:5.3.4 XoverLow-pass and high-pass filters.Made up of a combination of a low-pass filter and high-pass

20Each filter has the following editable parameters:Type of filterAllows to choose three different types of filter and different attenuation slopes:Bu

21PhaseAllows 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 ~

225.3.7 Output Limitera. Output level limiterAllows to keep the signal of each individual output within a set level.Can be used effectively to protect

235.4 UTILITY MenuIMPORTANT! Enabling the LIMITER on a specific output also changes the way in which the level is displayedon the corresponding In fac

menuUTILITYLock LockMisc. SetupOutput MetersTemperatureWake UpLCD ContrastInput SelectGanging Input GangingOutput GangingUnitsLim. Thresh. UnitTempera

25ACCEPT..#2 MySetup#3 MySetup5#4 LiveSet1#5 LiveSet2#6 Monitor#7 Monitor2#8 Monitor3#9 Side..Preset Change RXMAXIDRIVE3.4 COMPACT #2MAXIDRIVE3.4 COMP

26To check this:1. set Input Gangin=Off, load the *Default* PRESET, set INA Delay=1 and INB Delay=0;2. set Input Gangin=On, return to the Input Delay

5.4.4 Misc. Setup submenuOutput MetersMisc. SetupTemperatureWake UpLCD Contrast5.4.3 UNITS SUBMENUUsed this submenu to choose the measurement units to

28b. Output MetersUsed to decide whether to display the outputs signal before or after MUTE.The options include:Use this submenu to set a series of sy

Dear Customer:PREFACEThank you very muchLTO AUDIO TEAM2Thanks for choosing MAXIDRIVE3.4 COMPACT 3 - Way Stereo Digital Crossover and thanks for choosi

2929e. LCD ContrastAllows to adjust the Display contrast.The values are in the following range: 0 (minimum contrast) ~ 32 (maximum contrast).5.4.5 LOC

3030After entering the password, press ENTER.Confirmation is only accepted if the cursor is positioned on one of the passwords four characters.Note: T

316. CONNECTIONSThe following diagrams show the schemes of the recommended cables and some connection examples referred tovarious system configuration

7. APPLICATIONThe following diagrams show the MAXIDRIVE3.4 COMPACT's various system configurations, as if to say, the variousinput and output har

CH-A CH-BCLIPSIGPOWERONOFFCLIPSIGPROTCH-A CH-BCLIPSIGPOWERONOFFCLIPSIGPROTLTORRPROFESSIONAL HIGH POWER STEREO AMPLIFIERPROFESSIONAL HIGH POWER STEREO

CH-A CH-BCLIPSIGPOWERONOFFCLIPSIGPROTCH-A CH-BCLIPSIGPOWERONOFFCLIPSIGPROTLTORRPROFESSIONAL HIGH POWER STEREO AMPLIFIERPROFESSIONAL HIGH POWER STEREO

CH-A CH-BCLIPSIGPOWERONOFFCLIPSIGPROTCH-A CH-BCLIPSIGPOWERONOFFCLIPSIGPROTLTORRPROFESSIONAL HIGH POWER STEREO AMPLIFIERPROFESSIONAL HIGH POWER STEREO

CH-A CH-BCLIPSIGPOWERONOFFCLIPSIGPROTCH-A CH-BCLIPSIGPOWERONOFFCLIPSIGPROTLTORRPROFESSIONAL HIGH POWER STEREO AMPLIFIERPROFESSIONAL HIGH POWER STEREO

FromRS485 OUTtoRS485 INFromRS485 OUTtoRS485 INto/fromRS232to/fromRS232 Serial PortMAXIDRIVE3.4 COMPACT 3-WAY STEREODIGITAL CROSSOVERe. Communications:

8. TECHNICAL SPECIFICATIONS38Peak, 6dB Lo-Shelf, 12dB Lo-Shelf, 6dB Hi-Shelf, 12dB Lo-Shelf, Notch-24dB, -18dB, -12dB, -6dB, CLIP relative to Clip poi

TABLE OF CONTENTS1. INTRODUCTION ...

399. WARRANTY1. WARRANTY REGISTRATION CARDTo obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Ca

NF -1.201630No. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, Taiwanhttp://www.altoproaudio.com Tel: 886-4-22313737email: [email protected]

1. INTRODUCTION2. FEATURES3.1 The Front Panel3. CONTROL ELEMENTS4Single rack unit2 input connectors are compatible with balanced XLR and JACK6 outputs

57.ENTER keyThe key allows you to access to the selected editing . P ou can edit and confirmvalue of parameter.page ressing this key, y the required9.

64. GETTING STARTED4.1 Configuration of the systemMeanwhile, the system will restore the exact operating conditions at the time of switching off.15.RS

7Load the containing the you've found.Factory PRESET configurationPress the Key until the menu LED lights up.MODE PRESETThe display will show the

84.3 First SetupchecksDisable the MUTE function on the outputs you intend using and listen the sound, carry out instrumental(if you have the necessary