Telex SbA760 Speaker User Manual
Contents
1. O INPUT OUTPUTS o O CAUTION A Ev Elecirovoice SpA760 ACTVESUSWOOFERIS user Electro Voice SbA760 User Manual 5 Setup Example B Stereo 2 way Active Operation with Mono Subwoofer In this operation mode only the Mid High signals are fed to the fullrange speaker cabinets which allows higher acoustic output levels SPEAKON CABLE AUX 1 AUX 2 AUX 3 REC SEND 2TRACK RET FX 1 2 LAMP ONLY a DA Mia rue li Et E DH 4 SEND SEND SEND FOOTSW a 028222222222 Bp CRA S ZS OQO ZAY O 0 00000000000 SJ NG NS 3 NG 6 PM UM es m E man MAIN e za POWER AMP mono aaa el m a OA A E INSERTS OUTPUTS INPUTS outputs INPUTS ourrur e o o o9 o o 33 ESI deren e SA NS Sy Li E SS SS SSS Se o 9 9 9 9o o o o o SSE o 52 QZ y PA e e e e o2. M m 4 FU A 4 AGO OTOC OT gr E OA tX M 4 TOD 5 A STO cem 6 SOL e 7 Go O E TE sa ces aaa danau nn 8 POT OD 9 Se a EE 10 nn ANK KA Ga AN Baka Ka aaa A aa ga GANG aaa a KIAI EE aaa a a Na aba E GAN Barang a SAN 11 PO DOIG ea PAN AN E aa Ag TEH a aa PEAN EN E O OE o T A E E 11 Est Ee 12 Electro Voice SbA760 User Manual TOC 0 Introduction Congratulations In buying an Electro Voice SbA760 you decided on getting one of today s most ad vanced active subwoofers incorporating sophisticated technology The active 15 subwoofer SbA760 with integrated 760 watt power amplifier has been specially designed to provide fundamental bass support for professional full range and multi channel cabinets Through the integrated electronic frequency crossover of the SbA760 setting up an active stereo multi channel system is truly simple The stereo audio signals for the mid high range cabinets are provided via the MID HIGH outputs on the SbA760 Additionally provided are all connection facilities for
3. m ES C a MI a Sew Mn INPUT OUTPUTS OUTPUTS INPUT A ae A P A eg A i Fy EleclroVoice N EleciroVoice Sp M60 cse vans our Z r e LI a A E T E E E E E LI 9 Electro Voice SbA760 User Manual 6 Setup Example E PA system with Active Components SbA760 in combination with the SxA360 or other active cabinets FiEectoVoice EyElechoVoice b SyeAl360 ccm o e Sellzen enee Ei ees HU L MONO N Pte A AN KE A 1 LINE OUT 1 amp 3 3 oo 93 Electro Voice SbA760 User Manual 9 Specifications Comnectors 2 XLR Jack Combo Input 2 XLR Slave Through 2 XLR Mid Hi Output Temperature Peak Current Limi
4. S A and Canada For customer orders contact the Customer Service department at 800 392 3497 Fax 800 955 6831 For warranty repair or service information contact the Service Repair Department at 800 685 2606 For technical assistance contact Technical Support at 866 78 AUDIO Specifications subject to change without notice All Other International Locations 952 884 4051 Fax 952 736 4212 www electrovoice com e Telex Communications Inc e www telex com Printed in U S A Telex Communications Inc 8 2004 Part Number 38110 392 Rev A Electro Voice SbA760 User Manual
5. by nasty contact noise The input section of the SbA760 also allows mono sub operation The stereo signal is fed to the L and R inputs and the low frequency range signals of both channels are summed prior to being processed in the power amplifier section All other applications use only the L Mono input Please also refer to the chapter SETUP EXAMPLES Parallel Outputs L R Parallel connected to the main inputs these sockets are used for carrying through the input signals Mid High Outputs L R The input signal is split via the integrated electronic cross over Low frequency signals are routed to the internal power amplifier of the SbA760 while high frequency signals are present at the Mid High outputs for further distribution to external power amps or active mid high range cabinets Level This control sets the output volume of the SbA760 in a range between esdB and 10dB The internal power amplifier provides a nominal input sensitivity of 6dBu Electro Voice SbA760 User Manual Status Indicators These indicators provide information about the actual operational state of the SbA760 s internal power amplifier Signal Indicates that an audio signal is present at the input and that it is output Limit When lit this indicator signals that the internal power amplifier actu MID HIGH R oe S PARALLEL INPUT OUTPUTS POWER MAINS FUSE MAINS OUT MAINS IN ally operated at the threshold of c
6. ele o e o ISIE d mH 0 0 0 0 9 E ER e o o 0 0 0 010 0 99 9 9 m ei P e e e Ev ElectroVoice Sis cass D SIGNAL PROTECT e e WA A Jk 8 6 T PARALLEL INPUT PARALLEL INPUT OUTPUTS OUTPUTS Electro Voice SbA760 User Manual 6 Setup Example C Stereo 2 way Active Operation with Stereo Subwoofer The second SbA760 provides improved SPL in the bass range in a full Stereo Setup SPEAKON CABLE TT AN du K Sip ps SB REC SEND 2TRACK RET Pi D gs ONLY os 6 6 6 6 ol o Oo Olo o Ooo0000 O O00 5 1 63 NS kee edo ll ba E man MAIN POWER Le el ei ei el el 99900 e RETURNS INSERTS OUTPUTS p OUTPUTS INPUTS OUTPUT eee 9 0 73 513 HHAH O O at du P es e 0 0 0 0 0 0 0 0 O Guia FEE O K 0 O e elelelelelelelelele TEREE ORO 4 bg 47 0 0 000000010 Jt 3 PTS fe Au o OC ME ME ME ME HHEEEHE O oo 0 0 0 o o OE 7 9
7. C power is supplied via the Neutrik s professional PowerCon connector system and by use of an 15 bm AC cord This ensures an absolute secure and reliable power supply connection However with large installations consisting of several active cabinets the use of high quality AC distributors that allow high power consumption and offer reliable protection through out the entire system is strongly recommended voltage setting which can be found on a label next to the AC switch corresponds to your local Before establishing the AC connection for the first time make sure that the SbA760 s operation AC voltage 1 Electro Voice SbA760 User Manual 1 Quick Start counterclockwise stop A playing sound source could otherwise lead to extreme output levels Caution Before switching on the power of the SbA760 always set the LEVEL control to its This Quick Start Manual outlines the set up and operation of a SbA760 used as add on subwoofer together with a Powermixer see configuration examples The operation procedures are equivalent for other mixers 1 Electro Voice SbA760 User Manual Set up your Powermixer system as usual and connect a signal source to the power mixer e g CD Player or microphone Place your SbA760 somewhere between your full range cabinets Set the SbA760 s LEVEL control to its counterclockwise stop and connect the unit to a wall outlet using the supplied PowerCon mains cord Use a stereo pho
8. SbA760 User Manual Important Safety Instructions CAUTION The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous RISK OF ELECTRIC SHOCK voltage within the products enclosure that may be of sufficient DO NOT OPEN magnitude to constitute a risk of electric shock to persons WARNING To REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR 1 The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance WARNING CONNECT ONLY TO MAINS SOCKET WITH PROTECTIVE EARTHING CONNECTION servicing instructions in the literature accompanying the appliance 1 Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Do not use this apparatus near water Do not expose this apparatus to dripping or splashing and ensure that no objects filled with liquids such as vases are placed on this apparatus 6 Clean only with a dry cloth 7 Do not block any of the ventilation openings Install in accordance with the manufacturers instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Only use attachments accessories specifi
9. e AC switch does not light upon power on please contact your local dealer Mains AC Fuse During normal operation the mains AC fuse of the SbA760 only blows at the occur rence of a malfunction Exchanging the fuse is only permissible using a fuse of the same type current voltage and release characteristic In case the fuse blows frequently please contact your local dealer Mains AC Out This PowerCon mains AC out socket allows the connection of additional cabinets e g SxA360 using special cords PC150 or PC800 Mains AC In Mains AC connection is established via a PowerCon connector A 15 bm long AC cord with PowerCon plug is supplied CAUTION TO PREVENT AC NETWORK OVERLOAD CONNECTING MORE THAN THREE SBA760 CABINETS TO A SINGLE MAINS AC OUTLET 10A 16A IS NOT RECOMMENDED THIS APPLIANCE HAS NO USER SERVICABLE PARTS INSIDE LEAVE ANY SERVICING AND MAINTENANCE QUALIFIED SERVICE TECHNICIANS ONLY Electro Voice8 SbA760 User Manual 3 Cabling LF Cords Using balanced cables with phone or XLR type plugs for connecting signal sources to the SbA760 is strongly recommended to prevent problems caused by noise interference Make sure to mind the pin assignment as shown below 2 SIGNAL 1 SHIELD XLR MALE 3 SIGNAL 1 SHIELD XLR FEMALE 3 SIGNAL 2 SIGNAL UNBALANCED BALANCED SHIELD SHIELD SIGNAL SIGNAL SIGNAL The following illustration shows the most important cable connections and the
10. ed by the manufacturer 10 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any Way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 11 To completely disconnect AC power from this apparatus the power supply cord must be unplugged For US and CANADA only Do not defeat the safety purpose of the grounding type plug A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety When the provided plug does not fit into your outlet consult an electrican for replacement of the absolete outlet Important Service Instructions CAUTION These servicing instructions are for use by qualified personnel only To reduce the risk of electric shock do not perform any servicing other than that contained in the Operating Instructions unless you are qualified to do so Refer all servicing to qualified service personnel 1 Security regulations as stated in the EN 60065 VDE 0860 IEC 65 and the CSA E65 94 have to be obeyed when servicing the appliance 2 Use of a AC separator transformer is mandatory during maintenance while the appliance is opened needs to be operated and is connected to the AC 3 Switch off the power before retrofitting any extensions chan
11. ging the AC voltage or the output voltage 4 The minimum distance between parts carrying AC voltage and any accessible metal piece metal enclosure respectively between the AC poles has to be 3 mm and needs to be minded at all times The minimum distance between parts carrying AC voltage and any switches or breakers that are not connected to the AC secondary parts has to be 6 mm and needs to be minded at all times 5 Replacing special components that are marked in the circuit diagram using the security symbol Note is only permissible when using original parts 6 Altering the circuitry without prior consent or advice is not legitimate 7 Any work security regulations that are applicable at the location where the appliance is being serviced have to be strictly obeyed This applies also to any regulations about the work place itself 8 All instructions concerning the handling of MOS circuits have to be observed Electro Voice SbA760 User Manual Table of Contents o RM 1 Bala A 1 Setup and COMMCCHONS eegene eegene 1 o shea oe see copes ects as os A aa ba IR 2 100570 da nah agan A aa aaa aaa eag aia E 3 Isa LANA DIS Scr A e PO RU PR EEE TIA 3 ud R8 P EN EPTE 3 MIOS ob 3 EE 3 SE WC o A RA ta ato in PEE er e lio o A 4 POWORSWIC m M
12. ir pin assignment A balanced wiring is to be preferred in each case Standard XLR Cable a signal SENS L ES p signal _ J O Cable connection phone to XLR type unbalanced signal oe 5 5 Cable connection phone to XLR type balanced signal signal 2 7 O2 or Jet iP shield Standard phone type unbalanced pee signal Se D al d U signal Standard phone type balanced CN E gt on E 5 Electro Voice SbA760 User Manual J 11 7 signal signal V Z Y Y shield 4 Setup Example A Add On Operation The easiest way to expand your power mixer by means of a SbA760 SPEAKON CABLE S OR OR bz OR E ala A ai MONO A E A Q 9 RECORD 2TRACK OUTPUT OUTPUTS PONPUTS FOOLS O QOO O9 5 99 99 CO O O O9 SEND RETURN Sy JU G0 Y o 0o o o o 6 Us 515 eee e o o0 0 0 0 0 5 e e e e e e e e6 0 eo 00 o o o o e eo0 o9 00 e o
13. lipping Short term blinking is not critical because the amp s audio limiter keeps distortion under control so that the sound is unaffected Input overdrive which results in sound degradation is a probable cause for a continuously lit indicator To prevent this from happening reduce the input level VCP Lights when the power amplifier s Voice Coil Protection is activated During dynamic peaks the integrated power amplifier is capable of produc ing output levels that exceed its stated nominal output capacity Therefore the SbA760 employs a VCP circuit Voice Coil Protection which simulates the thermal behavior of the speaker s voice coil automatically reducing the energy fed to the speaker system on the occurrence of thermal overload Protect Lights when one of the multiple comprehensive protections e g against thermal overload HF DC or Back EMF of the power amplifier is activated Preventing the woofer from being damaged it is shutoff via relays in the protect mode Additionally the input level is being reduced During power on the PROTECT LED lights for approximately 2 seconds which is normal This only indicates that all protection circuitry has been activated properly Power Switch AC switch for switching the SbA760 s power ON or OFF The switch lights after turning the power ON Make sure that the AC cord is correctly connected if the switch is not lit upon turning the power on If the AC cord is correctly connected and th
14. ne plug cable to connect the Powermixer s MONO OUT to the SbA760 s L MONO INPUT Move the Mixer MONO OUT fader all the way down Be sure to switch on the Mixer first and then the SbA760 Switching on the SbA760 last is recommended Otherwise unwanted power on noise might occur When switching off your equipment please proceed in the opposite order i e switch off the SbA760 first Set the SbA760 s LEVEL control to its center position OdB and start the playback of the desired signal audio source After adjusting the desired acoustic output level of the full range cabinets using the Powermixer s master fader establish volume setting for the subwoofer using the MONO OUT fader 2 Controls MID HIGH Ui AU aaa DA AAN L MONO MID HIGH MID HI L MONO PARALLEL PARALLEL OUTPUTS OUTPUTS MID HIGH MID HIGH INPUT OUTPUTS INPUT OUTPUTS PARALLEL INPUT OUTPUTS Input L Mono Input R Electronically balanced inputs for the connection of high level signal sources such as mixers signal processors etc Establishing the connection is possible via phone or XLR type jacks Balanced connection is recommended to prevent noise or HF interference Caution Before connecting or disconnecting any plugs make sure to set the level control to its counterclockwise stop which prevents the system the audience and yourself from being stressed
15. o e e e e 0 0 0 0000 mE EE E E af GM NE UEM me me INPUT OUTPUTS INPUT OUTPUTS o i eo oe A Ev EeclroVoice wae e Spe emm Electro Voice SbA760 User Manual 7 Setup Example D Stereo 2 way Active PA System Using two SbA760 s to expand an existing fullrange system in a full Stereo Setup o oN FUN al EA SPEAKON CABLE meur noumo CHANNEL B CHANNEL A a INPUT ROUTING T D 8 Dune D G KS 0 KS OUTPUT PARALLEL MONO OUTPUT S E IN GERMANY
16. on for the Electro Voice EVS 15FR woofer against mechanical damage All controls and the cooling profiles of the power amp module are recessed to provide optimum protection for the sensitive parts of the SbA760 even during transportation Two carrying handles four castors and an integrated threaded pole mount stand flange allow comfortable transportation and optimum space saving installation Because of its versatility the SbA760 can be easily integrated into any existing sound reinforcement instal lation Unpacking and Warranty Open the packing and carefully take out the SbA760 Remove the protective foil from the carrying handles A power cord and the warranty card are supplied in addition to this owner s manual Please make sure that all details are filled in on the warranty card Only a completely filled in warranty certificate entitles you to stake any warranty claims Therefore keep the original invoice together with the warranty certificate at a safe place Setup and Connections Place the SbA760 on an even ground if possibly by using the supplied rubber feet to ensure safe opera tion Make sure to check the stability of the system when using pole mount stands Do not cover the heat sink on the subwoofer s rear during operation Otherwise the SbA760 will enter protection mode because of thermal overload Although this provides reliable protection for the subwoofer sound reproduction is muted until the normal operation mode is regained A
17. ter Power Requirements 100V 120V 230V 240V Cabinet 18mm Baltic Birch Vented Enclosure 4 Wheels Pole Mount M20 2 Handles Cabinet Finish Futura Black Powder Coated Steel Dimensions 23 7 x 16 9 x 22 0 26 2 H x W x D D w Wheels 603mm x 428mm x 558 665mm 10 Dimensions i 21 9 558mm 16 9 428mm i tmm pm 4 A e e A 23 7 e 603mm 009 He O 00 d m Y E 11 Electro Voice8 SbA760 User Manual 11 Block Diagram J9NS IS don INDATIY UO 112810 Ag AH 130 NO Nant AlddNS a3mod 3d AH 130 NO Nant d LAdLNO H9IH 0 TH 041003 fhixuat2t113 ub th 1 LAdLNO H9IH 0 TH E m N SNTUL ZHO9 OG SS NDEZ OCZ j SNIUM NAZIT OOT SNIYN d3nod LAdLNO d3T1198Ud 2N3n0384 Jgd BERA 29N3n8384 12 Electro Voice SbA760 User Manual U
18. using the SbA760 as active mono subwoofer in active 2 way or add on operation Manufactured from baltic birch and housing a high performance Electro Voice EVS 15FR woofer the SbA760 withstands even the hardest strain during transport and operation While input connection is also possible via phone type jacks all input and output signals are output via professional XLR type connectors The integrated High Efficiency 760W power amplifier optimally matches the EVS 15FR woofer offering highest dynamic and audio performance and ensures at the same time that the EVS 15FR woofer is always operated in its optimum operation range Extensive protection circuitry like VCP DC HF protection audio limiter Back EMF protection and thermal protection are employed to securely monitor the compliance to these operation limits guaranteeing that the SbA760 provides outstanding performance even under most demanding conditions The SbA760 is also especially suitable for many rental applications Compared to Class AB operated amps and because of utilizing Class H High Efficiency technology the power amplifier produces significantly less power loss and additionally reduces thermal stress of all components Employing fans to ensure thermal stability is not necessary because of the Class H technology and use of comprehensively dimensioned cooling profiles The enclosure is sealed with extremely durable Futura coating and a robust powder coated steel grille provides protecti
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