User`s Manual - Alto Professional
Contents
1. M LR FEATURE Nils M S SGCOUNTROLTELEMEN TO P SUE UIS eee ee ee NN PUN UM PI UMEN 3 1 The Front Panel 3 2 The Rear Panel 4 INSTALLATION amp GONNEG TION ppp 4 1 Mains Connection 4 2 Audio Connection 4 3 Rack Mounting 5 idus e x40 Ma 5 1 X23SW 2 Way Stereo 6 TECHNICAL SPECIFICATIONJO 1 INTRODUCTION Thank you very much for expressing your confidence in ALTO products by purchasing our X23SW Active crossover With the X23SW you have acquired an extremely musical and flexible Active Crossover The ALTO X23SW Active Crossover is a single rack unit three channels electronic crossover capable of managing the frequency control for stereo 2 way speaker systems The X23SW Active Crossoveris an ideal crossover solution for most small and large PA systems live sound venues commercial installations recording studio monitors and DJ set ups In addition to its flexibility in configuring to different sound systems the X23SW Active Crossover has advanced features such as Clip LED Indicators CD Horn Equ alization and individual Phase and Mute switches per frequency band The X23SW Active Crossover is an effective and efficient electronic crossover solution which will give you precise c2. 7 0 l 3 Screen m m Tip Tip TIP SLEEVE SLEEVE tib Sleeve Sleeve c ws O LO Ra TIP RING SLEEVE SLEEVE RING TIP Sleeve Sleeve Em eo Tip EJ Centre Sleeve QO Screen TIP SLEEVE Tip Centre en d nn CENE Sleeve Screen TIP RING SLEEVE lt lt 3 o T a He 4 3 Rack Mounting The most secure mounting is on a universal rack shelf available from various rack manufactures or your music dealer The X23SW Active Crossover fits into one standard 19 rack unit of space Please allow at least an additional 4 depth for the connectors on the rear panel Be sure that there is enough air space around the unit for sufficient ventilation and please do not place the X23SW Active Crossover on high temperature devices such as power amplifiers etc to avoid overheating 5 APPLICATION 5 1 X23SW 2 Way Stereo Present your X23SW Active Crossover in a 2 way stereo application please connect the unit in your system as the following illustration step by step 1 Plug the Left line in into INPUT 1 and the Right line in into INPUT 2 2 Connect the LOW OUT 1 to the Left input of the Low frequency amplifier and the LOW OUT 2 to the Right input of the Low frequency amplifier 3 Connect the HIGH OUT 1 to the Left input of the High frequency amplifier and the HIGH OUT 2 to the Right input of the High frequency amplifier 4 Connect the SUB woofer OUTPUT TO the subwoofer amplifier via this u
3. cabling power cord Failure to do so could result in shock death or fire If in doubt seek advice from a registered electrician Do Not Remove Any Covers Within the product are areas where high voltages may present To reduce the risk of electric shock do not remove any covers unless the AC mains power cord is removed Covers should be removed by qualified service personnel only No user serviceable parts inside e Fuse To prevent fire and damage to the product use only 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 Protective Ground Before turning the product ON make sure that it is connected to Ground This is to prevent the risk of electric shock Never cut internal or external Ground wires Likewise never remove Ground wiring from the Protective Ground Terminal Operating Conditions Always install in accordance with the manufacturer s instructions To avoid the risk of electric shock and damage do not subject this product to any liquid rain or moisture Do not use this product when in close proximity to water Do not install this product near any direct heat source Do not block areas of ventilation Failure to do so could result in fire Keep product away from naked flames IMPORTANT SAFETY INSTRUCTIONS Read these instructions Follow all instructions Keep
4. these instructions Do not discard Heed all warnings Only use attachments accessories specified by the manufacturer Power Cord and Plug Do not tamper with the power cord or plug These are designed for your safety Do not remove Ground connections If the plug does not fit your AC outlet seek advice from a qualified electrician Protect the power cord and plug from any physical stress to avoid risk of electric shock Do not place heavy objects on the power cord This could cause electric shock or fire Cleaning When required either blow off dust from the product or use a dry cloth Do not use any solvents such as Benzol or Alcohol For safety keep product clean and free from dust Servicing Refer all servicing to qualified service personnel only Do not perform any servicing other than those instruc tions contained within the User s Manual Preface Dear Customer Thanks for choosing ALTO Active Crossover and thanks for choosing the one of results of ALTO AUDIO TEAM job and researches Forour ALTO 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 The ALTO line presents unparalleled analogue and digital products made by Musicians for Musicians in our R amp D Centres in Italy Netherlands United Kingdom and Tai
5. Frequency Band They present with a Low cut for the High Frequencies and a High cut for the Low frequencies you can select the crossover Frequencies between 250Hz and 6kHz 5 Phase Switches These allow switching the polarity to invert the signal phase in the High Frequency Band This is done to correct audible phase problems after the output levels being proper adjustment Caution Before pressing the Phase Switches always lower the outputs of your power amplifier to avoid possible speaker damage 6 Sub Crossover Frequency Control This control select the crossover frequencies of the Subwoofer Frequency Band You can select the crossover frequencies between 50Hz and 250Hz 7T Subwoofer Output Level Control This control is used to adjust the output level of the Subwoofer Frequency Band 8 Subwoofer Low Cut Switch This inserted 30Hz Low Cut filter in the Subwoofer Frequency Band with a 12dB Octave is used to minimize problems from subsonic frequencies in the signal to suppress Hum noise and to prevent any low frequency Speaker resonance 3 2 The Rear Panel 10 9 12 11 13 12 11 9 Fuse Holder Voltage Selector This is a dual voltage unit Before you attempt to connect and operate the unit please make sure that your local voltage matches the voltage on the fuse holder cover Caution The fuse protecting the AC supplies circuits of this unit The fuse can only be changed by a qualified technician in the event of a fault or c
6. User s Manual 2 WAY STEREO X2 3 SW CROSSOVER PLUS SUBWOOFER a LTO www altoproaudio com Version 1 2 September 2005 English SAFETY RELATED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol wherever used alerts you to the pre sence of un insulated and dangerous voltages with in the product enclosure These are voltages that may be sufficient to constitute the risk of electric shock or death This symbol wherever used alerts you to impo rtant operating and maintenance instructions Please read AC mains Alternating Current Protective Ground Terminal m 4 Hazardous Live Terminal ON Denotes the product is turned on OFF Denotes the product is turned off WARNING Describes precautions that should be observed to prevent the possibility of death or injury to the user CAUTION Describes precautions that should be observed to prevent damage to the product Disposing of this product should not be placed in municipal waste and should be mmm oeparate collection WARNING e Power Supply Ensure that the mains source voltage AC outlet matches the voltage rating of the product Failure to do so could result in damage to the product and possibly the user Unplug the product before electrical storms occur and when unused for long periods of time to reduce the risk of electric shock or fire External Connection Always use proper ready made insulated mains
7. and these rights are compatible with the state laws you may also have other statutory rights that may vary from state to state SEIKAKU TECHNICAL GROUP LIMITED 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 2005 SEIKAKU GROUP NF00876 1 2
8. hanging the supply voltage If the fuse continues to blow after replacing discontinue use of this unit before repaired AOCL OLL 220 240V y THIS IS SET FOR THIS IS SET FOR 110V AC TO 120V 220V AC TO 240V AC OPERATION AC OPERATION The fuse holder above the AC connector on the rear of the chassis has 3 triangular markers please refer to the above pictures with two of these triangles opposing each other your unit is set to the operating Voltage printed next to these markers To change pull fuse holder out and rotate 180 then push in again 10 AC Inlet This connector is meant for the connection of the supplied main cord Do not insert power cable into unit until voltage has been correctly set Do not plug power cable into AC power until voltage has been correctly set 11 Stereo Input Connectors Connect your L R stereo input signal to either the balanced XLR or the unbalanced 1 4 input jacks 12 Output Connectors Connect to your amplifiers via these unbalanced 1 4 output jacks 13 Subwoofer Output Connector Connect your subwoofer amplifier via this unbalanced 1 4 output jacks 4 INSTALLATION amp CONNECTION 4 1 Mains Connection Please ensure that the ALTO X23SW Active Crossover is set to the correct supply voltage before plugging the power cord into the wall outlet use the same fuse as marked on the fuse holder at the AC power connection socket Do not insert power cable into the uni
9. n the return shipping handling and insurance 3 TERMS AND CONDITIONS 3 1 ALTO warrants that this product will be free from any defects in materials and or workmanship for a period of 1 year from the purchase date if you have completed the Warranty Registration Card in time 3 2 The warranty service is only available to the original consumer who purchased this product directly from the retail dealer and it can not be transferred 3 3 During the warranty service ALTO may repair or replace this product at its own option at no charge to you for parts or for labor in accordance with the right side of this limited warranty 3 4 This warranty does not apply to the damages to this product that occurred as the following conditions Instead of operating in accordance with the user s manual thoroughly any abuse or misuse of this product e Normal tear and wear e The product has been altered or modified in any way Damage which may have been caused either directly or indirectly by another product force etc e Abnormal service or repairing by anyone other than the qualified personnel or technician And in such cases all the expenses will be charged to the buyer 3 5 In no event shall ALTO be liable for any incidental or consequential damages Some states do not allow the exclusion or limitation of incidental or consequential damages so the above exclusion or limitation may not apply to you 3 6 This warranty gives you the specific rights
10. nbalanced 1 4 output jack TYPICAL SET UP HIGH AMP 6 TECHNICAL SPECIFICATIONS Electrical Subwoofer Frequency Range OHZ 250H Low High Frequency Range 250Hz 6KHz N Ratic Controls SSS O Input Level Output Level Dhase Front panel switches PowerSupply Connector type Type Mains suppl 95 120V 210 240V 60 50Hz Power Rating Physical Dimensions 483 W x194 5 D x44 H mm 19 x7 7 x1 7 2 95 Kg 6 50lb 7 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 under standing of the sales status so as to purport a more effective and efficient after sales warranty service Please fill out all the information carefully and genuinely miswriting or absence of this card will void your warranty service 2 RETURN NOTICE 2 1 In case of return for any warranty service please make sure that the product is well packed in its original shipping carton and it can protect your unit from any other extra damage 2 2 Please provide a copy of your sales receipt or other proof of purchase with the returned machine and give detail information about your return address and contact telephone number 2 3A brief description of the defect will be appreciated 2 4 Please prepay all the costs involved i
11. ontrol and superior sound from your loudspeaker system 2 FEATURE LIST e Single Rack Unit 1U e Robust and Compact Design e Phase Inversion Switches for High Frequency Band e 30Hz Low Cut for Subwoofer Low Frequency Band e Servo Balanced XLR and Unbalanced 1 4 Inputs Unbalanced 1 4 Outputs e Subwoofer Output e State Variable 12dB Octave 2nd order Filters Top Audio Performances With High Slew Rate Circuity and over 115dB Dynamic Range for Transparent Sound e Shielded Internal Power Supply with AC Voltage Selectable AC95 120V 60Hz or 210 240V 50Hz e Manufactured Under 1509001 Certified Management System 3 CONTROL ELEMENTS 3 1 The Front Panel CHANNEL 1 SUB WOOFER CHANNEL 2 120 170 am ON mor 70 230 OFF 10 50 250 1 Power Switch This switch powers up and powers down this Crossover Caution Always turns the Crossover on before the amplifier and turns it off after the amplifier other wise transients harmful to the speakers may result 2 L H Output Level Controls These controls are used to adjust the output level of each Frequency Band Low and High 3 30Hz Low Cut Switches These inserted 30Hz Low Cut filters in the Low Frequency Band of each channel with a 12dB Octave are used to minimize problems from subsonic frequencies in the signal to suppress Hum noise and to prevent any low frequency speaker resonance 4 Crossover Frequency Controls These controls select the crossover frequencies of the Low and High
12. t until voltage has been correctly set Do not plug the power cable into AC power until voltage has been correctly set The mains connection of the ALTO X23SW Active Crossover is made by using the enclosed mains cable and a standard IEC receptacle It meets all of the international safety certification requirements 4 2 Audio Connection The ALTO X23SW Active Crossover presents with balanced XLR and 1 4 TRS connectors and it can be interfaced by several ways to supporta variety of applications without any signal loss a Wiring Configuration Either the 1 4 TRS Tip Ring Sleeve jack or the XLR servo connector can be wired in balanced and unbalanced modes Please wire your systems as the following examples For 1 4 TRS jack i 1 4 TRS jack 1 A4 TRS jack Unbalanced Input Balanced Input e For XLR Connector riui 1 i Stren XLR Unbalanced Input XLR Balanced Input b In Line Connection For these applications the X23SW Active Crossover provides XLR connectors to easily interface with most professional audio devices Follow the configuration examples below for your particular connection e Balanced mm Tip CO Tip TIP RING SLEEVE SLEEVE RING TIP Ring O_O Ring e O 01 RING SLEEVE Ri ng 2 Sleeve 3 Unbalanced Tip 1 mmo 8 00 31 TIP RING SLEEVE Sleeve 3 4 1 2 TIP SLEEVE T Sleeve 3 1 Centre
13. wan The core of our digital audio products is a sophisticated DSP Digital sound processor and a large range of state of the art algorithms which have been developed by our Software Team for the last 7 years Because we are convinced you are the most important member of ALTO AUDIO TEAM and the one con firming the quality of our job we d like to share with you our work and our dreams pay attention to your suggestions and your comments Following this idea we create our products and we will create the new ones From our side we guarantee you and we will guarantee you also in future the best quality the best fruits of our continuous researches and the best prices Our ALTO Active Crossover is the result of many hours of listening and tests involving common people area experts musicians and technicians The results of this effort is an efficient and effective electronic crossover solution which will give you precise control and superior sound from your loudspeaker system Nothing else to add but that we would like to thank all the people that made the ALTO Active Crossover a reality available to our customers and thank our designers and all the ALTO staff there to make possible the realization of products containing our idea of music and sound and there to support you our customers in the best way conscious that you are our best richness Thank you very much ALTO AUDIO TEAM TABLE OF CONTENTS TINIRODUC TION eee
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