SRM350 2-Way Active Loudspeaker User's Manual
Contents
1. CONNECTIONS PLACEMENT The SRM350 has a combination female The SRM350 active speakers are designed XLR and 1 4 TRS input that accepts a to sit on the floor a tabletop or to fit on a balanced or unbalanced mic or line level standard tripod speaker stand signal When connecting a balanced signal WARNING The cabinet be sure 1 wired per AES Audio Engi has no rigging points and neering Society standards is not suitable for flying XLR TRS NEVER attempt to sus Hot Pin2 Tip gt pend the SRM350 active Cold Pin3 Ring speakers by their handles Shield Ground Shield You can lay the cabinet down on its side and use the SRM350 as a floor monitor The There is also a male XLR connector la asymmetrical trapezoidal shape of the cabinet beled THRU This allows you to connect provides a perfect angle for aiming up toward more than one SRM350 to the output of performers from the front of the stage your mixing console Simply plug the signal source output into the first INPUT jack and patch that speaker s THRU jack to the next INPUT jack and so on daisy chaining 9 multiple speakers see diagram on page 7 The THRU jack s signal comes after the MIC LINE As with any powered switch but before the 52. LEVEL This is used to adjust the signal level going into the built in power amplifiers from Off up to 45 dB of gain Since the SRM350 in corporates Mackie s world class low noise mic preamp technology you can connect either a line level or a microphone level signal to the input and use this control to adjust the level correctly There is no phantom power for a microphone so you should use a dynamic mic or use a condensor type if it has its own battery power A CLOSER LOOK SIGNAL LEIRE Z U C DESIGNED BY MACKOIDS IN WOODINVILLE WA USA AND REGGIO EMILIA ITALY Follow the Quick Start guide on page 6 for setting the LEVEL control For most ap plications it will be in the NORMAL position 12 o clock If you have a particu larly high line level signal connected to the SRM350 you may need to turn the control down to the 9 o clock position If you have a low line level or mic level signal con nected you may need to turn the LEVEL control up to the 3 o clock position MIC LINE Switch Leave this switch out when connecting a line level signal to the INPUT connector from a mixer graphic EQ or other line level signal source Push this switch in when connecting a microphone to the INPUT connector Since a microphone produces a much smaller sig nal than a line level signal this provides an additional 40 dB of gain to boost the micro phone signal to a line level SIGNAL In
3. INTRODUCTION Thank you for choosing LOUD Technologies Mackie active sound reinforcement speakers The SRM350 is an active two way loud speaker capable of extremely high sound pressure levels and designed to give you the best performance of any loudspeaker in its class and price range When we designed the SRM350s older sibling the SRM450 our goal was to build a sound reinforcement speaker with the same fidelity and precision found in our re knowned HR824 studio monitors Apparently people liked what they heard Now our goal for the SRM350 is to make the sound even better with improved active electronics but delivered in a more compact size We think you ll agree that the SRM350 sound quality and accuracy reaches this goal and more The result is a compact sound reinforcement system equally at home in a concert setting in the studio im promptu concerts on the studio roof in the cinema or in a home theater The Transducers The SRM350 active speakers feature a 10 high power low frequency woofer and a 1 4 titanium diaphragm high output precision compression driver This high frequency driver is mounted on an acoustically non resonant exponential waveguide providing a wide controlled dispersion and precise re production of the critical upper mid range and high frequencies The result is an unbe lievably smooth off axis response that allows everyone in the audience to experi ence the same
4. SRM350 2 WAY ACTIVE LOUDSPEAKER USER S MANUAL IMPORTANT SAFETY INSTRUCTIONS Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Do not use this apparatus near water 6 Clean only with dry cloth 7 block any ventilation openings Install in accordance with the manutacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Use only with a cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over PORTABLE CART WARNING Carts and stands The Component should
5. signal source it may be delivering an out of balance stereo signal Try swapping sides Turn off the active speakers swap the input cables coming from the mixing console turn the active speakers back on If the same side is still louder the problem may be with your active speakers or cables between the mixer and the active speaker If the other side is louder now the problem is with the mixer or the signal source Poor bass performance e Check the polarity of the connections between the mixer preamp and the active speakers You may have your positive and negative connections reversed at one end of one cable causing one SRM350 to be out of phase Bad sound Is it loud and distorted Follow the procedures described in the Quick Start section to verify that the levels are set properly Is the input connector plugged com pletely into the jack Be sure all connections are secure It s a good idea to periodically clean all electrical connections with a non lubricating electrical contact cleaner Noise Make sure all connections to the active speakers are good Make sure none of the signal cables are routed near AC cables power trans formers or other EMI inducing devices Is there a light dimmer or other SCR based device on the same AC circuit as the SRM350 Use an AC line filter or plug the SRM350 into a different AC circuit Hum 2 gt Turn the LEVEL control the way down
6. 0 03 Cooling Convection Extrusion Design Class H High Frequency Power Amplifier Rated Power 30 watts continuous Rated THD lt 0 03 Cooling Convection Extrusion Design Class H Rated power is continuous rms wattage into transducer s rated impedance 1 kHz for the HF amplifier and 100 Hz for the LF amplifier Transducer Specifications Low Frequency Transducer Diameter 10 in 250 mm Voice Coil Diameter 2 0 in 51 mm Sensitivity 1W 1m 96 dB Power Handling 250 watts rms long term Frequency Range 61 Hz 3 kHz Magnet Type Ferrite High Frequency Transducer Diaphragm Diameter 1 4 11 36 mm Horn Exit Diameter 1 in 25 4 mm Diaphragm Material Titanium Sensitivity 1W 1m 104 dB Nominal Impedance 16 ohms Power Handling 75 watts rms long term Frequency Range 1 kHz 20 kHz Magnet Type Ferrite Horn Design Horizontal Coverage 90 1 kHz 20 kHz Vertical Coverage 80 1 kHz 20 kHz Mouth Size 11 1 in x 6 1 in 283 mm x 154 mm Enclosure Construction Features Basic Design Asymmetrical Trapezoidal Material Polypropylene Finish Grey textured finish Handles One on side one on top Grille Perforated metal with weather resistant coating Line Input Power Power Consumption 120 watts with musical program and LIMIT LED blinking US 120 VAC 60 Hz Recommended Amperage Service 2 5 amps Europe 230 VAC 50 Hz Recommended Amperage Service 1 25 amps Japan 100 VAC 50 60 Hz Recommended Amperag
7. a mixer or preamplifier mute or tape switch engaged or a mic switch off Left Line level Output Right Line level Mixer or 6666 66 lel 6666 66 el 6666 66 lel 6666 amp 1 8 6 6 6 06 6 6 6 6 06 6 8 6 6 8 6 8 6 6 6 6 6 of 6 6 6 06 08 6 0 0 SRM350 STEREO OPERATION WITH A MIXER 6 oN 2 28 8 2 SRM350 DAISY CHAINING USING THE THRU JACK The SRM350 can be used with a Mackie SWA1501 or SWA1801 subwoofer to create an incredibly powerful system The active crossover inside the subwoofer splits the full range in put signal into two ranges The subwoofer plays the low frequency range through its built in amplifier and woofer and sends the high pass range to the SRM350 The SRM350 can be pole mounted on top of the SWA1501 or 1801 as shown SRM350 BIAMPING WITH A POWERED SUBWOOFER Line level Hi pass out Line level Hi pass out 1501 plays the low frequencies POWER 56 18 AL 3 gt D 8 1501 plays the low frequencies 7 Power Cords REAR PANEL DESCRIPTION The SRM350 has several connecto
8. components protect LEVEL control If the them from moisture If MIC LINE switch is gt you are setting them up pushed in on the first gt outdoors make sure they SRM350 the signal at the THRU jack is are under cover if you expect rain boosted by 40 dB to a line level Therefore leave the MIC LINE switch out on the fol lowing SRM350s in the chain The SRM350 generates magnetic fields Place it at least two feet 0 6 meters or more from computer monitors Check the screen for any change in color or distortion Do not place any magnetic audio or video tapes or computer discs near the SRM350s VERY IMPORTANT RING COLD TIP HOT SLEEVE SHIELD Balanced TRS Connectors 10 Room Acoustics The SRM350 active speakers de signed to sound as neutral as possible that is to reproduce the input signal as accu rately as possible monitoring the sound rather than changing it Room acoustics play a crucial role in the overall performance of a sound system However the wide high frequency disper sion of the SRM350 helps to minimize the problems that typically arise 90 Dispersion S up to 20 kHz Here are some useful placement tips e Avoid placing loudspeakers in the corners of a room This increases the low frequency output and can cause the sound to be muddy and indistinct e Avoid placing loudspeakers against a wall This too increases the low frequency output though not as much as
9. corner placement However if you do need to reinforce the low frequencies this is a good way to do it e Avoid placing the active speakers directly on a hollow stage floor A hollow stage can resonate at certain frequencies causing peaks and dips 11 the frequency response of the room It s better to place the active speakers on a sturdy table or tripod stands e Position the active speakers so the high frequency drivers are 2 to 4 feet above ear level for the audience make allowances for a standing dancing in the aisles audience High frequencies are highly directional and tend to be absorbed much easier than lower frequencies By provid ing direct line of sight from the active speakers to the audience you increase the overall brightness and intelligibility of the sound system Highly reverberant rooms like many gymnasiums and auditoriums are a nightmare for sound system intelligibility Multiple reflections off the hard walls ceiling and floor play havoc with the sound Depending on the situation you may be able to take some steps to mini mize the reflections such as putting carpeting on the floors closing draperies to cover large glass windows or hanging tapestries or other materials on the walls to absorb some of the sound However 11 most cases these remedies are not possible or practical So what do you do Making the sound system louder generally doesn t work because the reflections become louder to
10. determination of warranty coverage lies solely with LOUD Technologies Any products returned to one of the LOUD Technologies factory authorized service centers and deemed eligible for repair or replacement under the terms of this warranty will be repaired or replaced within thirty days of receipt by LOUD Technolo gies LOUD Technologies and its authorized service centers may use refurbished parts for repair or replacement of any product Products returned to LOUD Technologies that do not meet the terms of this Warranty will not be repaired unless payment is received for labor materials return freight and insurance Products repaired under warranty will be returned freight prepaid by LOUD Technologies to any location within the boundaries of the USA G LOUD Technologies warrants all repairs performed for 90 days or for the remainder of the warranty period This warranty does not extend to damage resulting from improper installation misuse neglect or abuse or to exterior appearance This warranty is recognized only if the inspection seals and serial number on the unit have not been defaced or removed H LOUD Technologies assumes no responsibility for the quality or timeliness of repairs performed by Authorized Mackie Service Centers I This warranty is extended to the original purchaser and to anyone who may subsequently purchase this product within the applicable warranty period A copy of the original sales receipt is requ
11. high resolution audio no matter where they are seated Each driver has been specifically designed by our engineers for optimum performance in the lightweight high strength cabinet N Power Amplifiers To power these beautiful things each SRM350 includes two power amplifiers They include the following features e The low frequency amplifier produces 165 continuous watts before clipping The high frequency amplifier produces 30 continuous watts before clipping e Both amplifiers are a Class H design which uses a dual power supply for improved power and thermal efficiency The amplifiers operate on the lower voltage rails until the signal requires more power at which point the high voltage rails seamlessly kick in to provide additional power e An Active Protection Management System monitors the output levels from both amplifiers as well as the operating temperature of the amplifiers When the output from either amplifier begins to clip a limiter gently reduces the input signal level until the output is no longer clipping Likewise if the temperature of either of the amplifers begins to exceed a safe operating level the input signal is elegantly adjusted to keep the tempera ture at a desired operating level e The low frequency amplifier also has a Dynamic Bass Boost circuit Our ears are more sensitive to bass frequencies at high volume leve
12. risk of electric shock to persons Le symbole clair avec point de fl che a l int rieur d un triangle quilat ral est utilis pour alerter l utilisateur de la pr sence a l int rieur du coffret de voltage dangereux non isol d ampleur suffisante pour constituer un risque d l ctrocution The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance Le point d exclamation l int rieur d un triangle quilat ral est employ pour alerter les utilisateurs de la pr sence d instructions importantes pour le fonctionnement et l entretien service dans le livret d instruction accompagnant l appareil WARNING To reduce the risk of fire or electric shock do not expose this appliance to rain or moisture Lend Me Your Ears Exposure to extremely high noise levels may cause permanent hear ing loss Individuals vary considerably in susceptibility to noise in duced hearing loss but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a period of time The U S Government s Occupational Safety and Health Administration OSHA has speci fied the permissible noise level exposures shown in this chart According to OSHA any exposure in excess of these permissible limits could result in some hearing loss To ensure against potentially dangerou
13. the back of the SRM350 This is a combination XLR and 1 4 TRS con nector and accepts balanced or unbalanced line level signals from mixers preamplifiers CD players tape decks etc with the MIC LINE switch SSRIM350 active SOUND REINFORCEMENT THRU 5 5 66 2 58 LINE 0 DESIG 100Hz 772k AIR 120 VAC 60Hz CONTOUR 2 50A 230VA 3dB NED BY MACKOIDS IN WOODINVILLE WA USA AND REGGIO EMILIA ITALY Du 7 Preamplifier out and accepts direct connections from dynamic microphones with the MIC LINE switch pushed in Connect the supplied AC power cord to the IEC socket on the back of the SRM350 Plug the other end into an AC outlet properly configured with the correct voltage for your particular model Turn on your signal source Make sure its Master Volume control if it has one is turned all the way down Turn on the SRM350 POWER switch Start the signal source whether it be speaking into a microphone or starting a CD player Adjust any volume controls on the signal source for normal operation Slowly turn up the LEVEL control on the back of the SRM350 until the desired volume is reached and the LIMIT light does not come on Always wear hearing protectors if you are close when it is playing at high levels If there 18 sound always turn down the SRM350 LEVEL control before investigating There may be
14. IH 410 80002 6 31542 LNAWAOVNVAN 011731084 JALOV 2 211 14441 aaWaOASNval aaMOd 1 0080 HOLIMS aaMOd 00240 10 3 99 82 SNOISAd 3 08602 SAL X1X 2 1 ANITIN 18 SRM350 LIMITED WARRANTY Please keep your sales receipt in a safe place A LOUD Technologies Inc warrants all materials workmanship and proper operation of this product for a period of five years from the original date of purchase with the exception of the transducers including woofers and compression drivers which are warranted for two years from the original date of purchase If any defects are found in the materials or workmanship or if the product fails to function properly during the applicable warranty period LOUD Technologies at its option will repair or replace the product This warranty applies only to equipment sold and delivered within the U S by LOUD Technologies Inc or its authorized dealers B Failure to register online or return the product registration card will not void the five year warranty Service and repairs of Mackie products are to be performed only at a factory authorized facility see D below Unauthorized service repairs or modification will void this warranty To obtain repairs under warranty you must have a copy of your sales receipt from the authorized Mackie dealer where you purchased the produ
15. If the noise disappears it s coming from the signal source If not try disconnecting the cable connected to the INPUT jack If the noise disappears it could be a ground loop rather than a problem with the SRM350 Try some of the following troubleshooting ideas Use balanced connections throughout your system for the best noise rejection Whenever possible plug all the audio equipment s linecords into outlets which share a common ground see the dia gram on page 13 The distance between the outlets and the common ground should be as short as possible Never remove the ground pin on the power cord of the SRM350 or any other component This is very dangerous The hum may appear when using an unbalanced source consumer preamp CD player VCR etc This is caused by the unbalanced to balanced interface between the devices and exacerbated by the fact that most consumer audio equipment have a two wire linecord without the third pin safety ground Use an interconnect cable wired as shown below The important point 18 that the shield and the wire from the XLR pin 3 are joined at the RCA source end RCA 3 Conductor Cable hield 7 5 Disconnect any cables which come in from outside such as cable satellite TV or roof top antennas They must be disconnected from every part of your system such as the VCR and preamp If the hum goes away you can add a ground loop isolator in y
16. WER LINE PRIMARY WINDING SECONDARY WINDING 240V L TRANSFORMER EARTH GROUND NEUTRAL 240V CENTER TAPPED SECONDARY 12 Wherever possible connect of your equipment to the same electrical circuit This will help reduce the possibility of a ground loop problem causing an annoying hum in your speakers Low power components such as tape decks mixers effects processors and CD players should be connected to the same outlet as the SRM350s Use fused power strips as shown in the diagram below Make sure that the total current draw of your components does not exceed the capability of the outlets and power strips For the US 120 V model A maximum of five SRM350s can be connected per 15A service This allows each SRM350 to be safely operated at its maximum level When turning your system on turn on the SRM350s last This will stop any turn on thumps and bangs from your source equipment being amplified When turning off your system turn off the SRM350s first This will prevent any turn off thumps and bangs from your source equipment being vX t When setting up for a show often you are plug ging into an AC power distribution system you know nothing about You may even be faced with 2 wire outlets that are missing the third safety ground pin It s a good idea to have a three wire AC outlet tester in your toolbox so you can check the outlets yourself to make sure they are wir
17. amplifier outputs and the drivers are kept to a minimum so the damping factor of the amplifier isn t compro mised by the resistance of long speaker cables In addition all the power from the amplifier is transferred directly to the drivers with no speaker cable losses e The acoustic sum of the outputs from the two drivers is optimized electroni cally as well as physically so the amplitude response is flat and there is no lobing error The presence of active circuits within the speaker cabinet allow the designer to add on extra details such as a high quality mic line input section and optional accessory modules In short all the complex interconnected components in the system are designed to work in harmony with each other to pro duce the best possible sound HOOKUP DIAGRAMS Quick Start 1 Start with the following settings on the 2 gt back of 116 Turn the POWER switch off down Set the CONTOUR and MIC LINE switches out If using a microphone as the input to the SRM350 push the MIC LINE switch in WARNING Turn the LEVEL control down counterclockwise before every use If not you could be in for a startling surprise especially if the last time you used it was with a microphone and now you want to connect a line level source Connect the output from your signal source mixing console microphone preamp or other mic or line level source directly to the INPUT connector on
18. be used only with a cart or stand that is recommended by the manufacturer A Component and cart combination should be moved with care Quick stops excessive force and uneven surfaces may cause the Component and cart combination to overturn 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 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 moisture does not operate normally or has been dropped 15 This apparatus shall not be exposed to dripping or splashing and no object filled with liquids such as vases shall be placed on the apparatus 16 This apparatus has been designed with 10551 construction and must be connected to a mains socket outlet with a protective earthing connection the third grounding prong 17 This apparatus has been equipped with an all pole rocker style AC mains power switch This switch is located on the rear panel and should remain readily accessible to the user 18 This apparatus does not exceed the Class A Class B whichever is applicable limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications ATTENTION Le pr sent appareil
19. ct It is necessary to establish purchase date and determine whether your Mackie product is within the warranty period D To obtain factory authorzied service 1 Call Mackie Technical Support at 800 898 3211 7 AM to 5 PM Monday through Friday Pacific Time to get a Return Authorization RA Products returned without an RA number will be refused 2 Pack the product in its original shipping carton Do not use packing peanuts shredded newspapers or other material with small particles to pack the product Please seal the Mackie product in a plastic bag 3 Also include a note explaining exactly how to duplicate the problem a copy of the sales receipt with price and date showing and your return street address no P O boxes or route numbers please If we cannot duplicate the problem or establish the starting date of your Limited Warranty we may at our option charge for service time 4 Tech Support will tell you where to ship the product Ship it freight prepaid in its original shipping carton IMPORTANT Make sure that the Service Request Number is plainly written on the shipping carton E LOUD Technologies reserves the right to inspect any products that may be the subject of any warranty claims before repair or replacement is carried out LOUD Technologies may at our option require proof of the original date of purchase in the form of a dated copy of the original dealer s invoice or sales receipt Final
20. ctory authorized service center 3 Keep this user s manual and the detach able linecord We don t need them to repair the loudspeaker 4 Pack the loudspeaker in its original package including endcaps and box This is VERY IMPORTANT When you call for the Service Request Number please let Tech Support know if you need new packaging Mackie 18 not responsible for any damage that occurs due to non factory packaging 5 Include a legible note stating your name shipping address no P O boxes daytime phone number Service Request Number and a detailed description of the problem including how we can duplicate it 6 Write the Service Request Number in BIG PRINT on top of the box Product shipped without the Service Request Number will be refused 7 Tech Support will tell you where to ship the loudspeaker for repair We suggest insurance for all forms of cartage 8 We ll try to fix the loudspeaker within five business days Once it is repaired we ll ship it back the same way in which it was received This paragraph does not necessarily apply to non warranty service Note You must have a sales receipt from an Authorized Mackie Dealer to qualify for a warranty repair CARE AND MAINTENANCE Your Mackie active speakers will provide many years of reliable service if you follow these guidelines Avoid exposing the active speakers to moisture If they are set up outdoors be sure they are under cover if you exp
21. dicator This LED illuminates whenever there is a signal present at the INPUT connector on the rear panel It senses the signal just after the LEVEL control so if the LEVEL control is turned down the SIGNAL indicator won t light LIMIT Indicator When the signal levels at the amplifier outputs approach clipping a soft limiting circuit is activated that reduces the input signal The LIMIT LED lights whenever the limit circuit is active It s okay for the LIMIT indicator to blink occasionally but if it blinks frequently or continuously either turn down the signal level at the mixer or other signal source or turn down the SRM350 s LEVEL control Wear hearing protection if you are close to the SRM350 playing at high levels VERY IMPORTANT INPUT Connector This is a combination female XLR type and 1 4 TRS connector that accepts a bal anced or unbalanced mic or line level signal THRU Connector This is a male XLR type connector that can be used to daisy chain the input signal to another speaker The signal at this point is after the MIC LINE switch but before the LEVEL control If you have a microphone connected to the first SRM350 and you have the MIC LINE switch pushed in the signal at the THRU jack is boosted 40 dB to a line level so leave the MIC LINE switch out on the next SRM350 ACCESSORY Plate This removable plate provides access to install future accessory modules
22. diligence has yielded phenomenal accuracy even if you are standing 20 feet away The Cabinet The SRM350 cabinet was designed to be the strongest molded composite cabinet on the planet This material is as strong as con crete and rigid enough to prevent unwanted vibrations in the cabinet A socket is pro vided in the bottom of the cabinet for mounting on a tripod stand Although it is an exceptional choice for installed sound situations its light weight and durable fin ish also make it ideal for portable sound system use The asymmetrical trapezoidal design of the cabinet makes it easy to use as a floor wedge for stage monitor applications The Active Advantage There are a number of advantages to us ing an active speaker system over a passive loudspeaker e The internal crossover is active and its low power circuitry operates on line level signals It does not waste speaker level power like a passive crossover with large coils caps and resistors e The input signals are crossed over before they reach the amplifiers so each amplifier only receives the correct frequency range for its driver e The amplifiers are designed specifically for these speaker load impedances There is no guesswork as to what load each amplifier has to drive so they can provide maximum acoustic output from the speakers yet minimize the danger of speaker damage due to overdriving a lesser amplifier e The connecting wires between the
23. e Service 3 0 amps AC Connector 3 pin IEC 250 VAC Control System Functions Electronic Crossover Phase Alignment Equalization Parametric Equalization Safety Features Low frequency Dynamic Bass Protection Power Supply and Amplifier Thermal Protection Display LEDs Signal Power Limit Protection Physical Properties Height 20 75 in 527 mm Width 13 10 11 333 mm Depth 12 25 in 311 mm Weight 32 1 14 5 kg Mounting Methods Floor mount only The SRM350 cabinet has no rigging points and is not suitable for flying Never attempt to suspend the cabinet by its handles The SRM350 is pole mountable via the built in socket on the bottom of the cabinet Be sure the pole is capable of supporting the weight of the SRM350 Disclaimer Since we are always striving to make our products better by incorporating new and improved materials components and manufacturing methods we reserve the right to change these specifications at any time without notice Mackie and the Running Man figure are registered trademarks of LOUD Technologies Inc All other brand names mentioned are trade marks or registered trademarks of their respective holders and are hereby acknowledged 2004 LOUD Technologies Inc ie All Rights Reserved SRM350 BLOCK DIAGRAM 000 SSVd 01 16009 SSVd JINVNAG AOSNAS AMAA SSVd
24. ect rain or you live in Washington 5 gt Avoid exposure to extreme cold below freezing temperatures If you must operate the active speakers in a cold environment warm up the voice coils slowly by sending a low level signal through them for about 15 minutes prior to high power operation e Use aslighty damp cloth with a mild soap solution to clean the cabinets Only do this when the power is turned off Avoid getting moisture into any of the openings of the cabinet particularly where the drivers are located Need Help You can reach a technical support representative Monday through Friday from 7 AM to 5 PM PST at 1 800 898 3211 After hours visit www mackie com and click Support or email us at techmail mackie com 16 SRM350 SPECIFICATIONS System Specifications Frequency Response 3 dB 83 Hz 18 5 kHz Frequency Range 10 dB 61 Hz 22 kHz Max SPL Long Term 1m 118 dB Max SPL Peak 1m 121 dB Crossover Linkwitz Riley 24 dB octave 2400 Hz Audio Input Type Balanced Differential Input Impedance 94k ohms Sensitivity center detent Line 4 dBu Mic 36 dBu Maximum Input Level 22 dBu Acoustic Contour Equalization peaking 3 dB 100 Hz 3 dB 12 kHz Accessory Interface 15 VDC normalized signal I O Operating Temperature Range 10 C 45 C 14 F 113 F Power Amplifiers Low Frequency Power Amplifier Rated Power 165 watts continuous Rated THD lt
25. ed correctly These testers will tell you 1f the polarity of the hot and neutral wires is reversed and if the safety ground 18 disconnected Don t use an outlet if it is wired improperly This is to protect yourself as well as your equipment VERY IMPORTANT Never remove the ground pin on the power cord of the SRM350 or any other component This is very dangerous be o 2 gt TAPE DECK EFFECTS SRM350 CONNECTIONS 13 SERVICE INFORMATION Warranty Service Details concerning Warranty Service are spelled out on page 19 of this manual If you think your loudspeaker has a problem please do everything you can to confirm it before calling for service includ ing reading through the following troubleshooting section Doing so might save you from being deprived of your Mackie loudspeaker If you do find the prob lem make sure that you turn down the LEVEL controls and turn off the SRM350 before correct ing it or changing any connections Of all Mackie products returned for ser vice which is hardly any at all many are coded CND Could Not Duplicate which usually means the problem lay some where else in the system The following troubleshooting tips may sound obvious but here are some things you can check 5 gt Troubleshooting No power e Our favori
26. erage 1 3 amps During a performance don t have it for the 230V model Under normal condi cranked so high that the rear panel LIMIT tions the current draw is below 1 amp LED is blinking frequently or lighting con We recommend that a stiff robust sup tinuously You should turn down the ply of AC power be used because the LEVEL control a notch or two to avoid amplifiers place high current demands on overheating the amplifiers or your neighbors the AC line The more power that is avail If the amplifiers begin to overheat the able on the line the louder the speakers will Active Protection Management System play and the more peak output power will gently reduces the input signal level until be available for cleaner punchier bass A the amplifiers have cooled down to a safe suspected problem of poor bass perfor operating temperature mance is often caused by a weak AC supply to the amplifiers AC Power Distribution A 240VAC center tapped service en trance transformer serves the majority of AC outlets encountered in homes and clubs in the U S This provides two phases of AC power on either side of the center tap at 120V each If lighting is used in a show it is prefer able to power the lights from one leg of the service and power the audio equipment from the other leg This will help minimize noise from the lights coupling into the au dio particularly if SCRs or light dimmer switches are used HIGH VOLTAGE PO
27. ired to obtain warranty repairs J This is your sole warranty LOUD Technologies does not authorize any third party including any dealer or sales representative to assume any liability on behalf of LOUD Technologies or to make any warranty for LOUD Technologies Inc K THE WARRANTY GIVEN ON THIS PAGE IS THE SOLE WARRANTY GIVEN BY LOUD TECHNOLOGIES INC AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS AND IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE THE WARRANTY GIVEN ON THIS PAGE SHALL BE STRICTLY LIMITED IN DURATION TO FIVE YEARS FROM THE DATE OF ORIGINAL PURCHASE FROM AN AUTHORIZED MACKIE DEALER UPON EXPIRATION OF THE APPLICABLE WARRANTY PERIOD LOUD TECHNOLOGIES INC SHALL HAVE NO FURTHER WARRANTY OBLIGATION OF ANY KIND LOUD TECHNOLOGIES INC SHALL NOT BE LIABLE FOR ANY INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES THAT MAY RESULT FROM ANY DEFECT IN THE MACKIE PRODUCT OR ANY WARRANTY CLAIM Some states do not allow exclusion or limitation of incidental special or consequential damages 013 limitation on how long warranties last so some of the above limitations and exclusions may not apply to you This warranty provides specific legal rights and you may have other rights which vary from state to state 19 MACKE 16220 Wood Red Road NE Woodinville WA 98072 USA US and Canada 800 898 3211 Europe Asia Central and South America 425 487 4333 Middle East and Af
28. ls than at softer vol umes This unique circuit automatically reduces the low frequencies below 70 Hz as the volume of the speakers goes up This results in improved efficiency for the low frequency amplifier because it is not wasting power trying to repro duce frequencies we hear better at loud volumes Instead the power is used for the frequencies where it is needed resulting in a louder sound Warning Although the amplifiers have these protection circuits you must still make sure the LIMIT light is not blink ing continuously If it is turn down your mixer faders or preamplifier gain or turn down the SRM350 LEVEL control 5 5 a 5 gt The Crossover The built in electronic crossover is a 24 dB octave Linkwitz Riley design Although more expensive than other crossover designs the benefits provided by the Linkwitz Riley design have been well documented These benefits include e Absolutely flat frequency response throughout the bandpass without the characteristic ripple near the crossover point exhibited by other designs e The sharp 24 dB per octave roll off of the filters ensures that the transducers aren t reproducing frequencies outside of their capabilities e The acoustic sum of the two driver responses is unity at the crossover frequency resulting in perfect power response Our heroic engineers have worked carefully to ensure that the SRM350 also provides perfect phase response This
29. num rique n met pas de bruits radio lectriques d passant las limites applicables aux appareils num riques de class A de class B selon le cas prescrites dans le r glement sur le brouillage radio lectrique 6006 par les ministere des communications du Canada 19 Exposure to extremely high noise levels may cause permanent hearing loss Individuals vary considerably in susceptibility to noise induced hearing loss but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a period of time The U S Government s Occupational Safety and Health Administration OSHA has specitied the permissible noise level exposures shown in the following chart CAUTION AVIS RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL ATTENTION POUR EVITER LES RISQUES DE CHOC ELECTRIQUE NE PAS ENLEVER LE COUVERCLE AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L USAGER CONFIER L ENTRETIEN AU PERSONNEL QUALIFIE AVIS POUR EVITER LES RISQUES D INCENDIE OU D ELECTROCUTION N EXPOSEZ PAS CET ARTICLE A LA PLUIE OU A L HUMIDITE The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a
30. o The best approach is to provide as much direct sound coverage to the audience as pos sible The farther away you are from the speaker the more prominent will be the reflected sound Use more speakers strategically placed so they are closer to the back of the audience If the distance between the front and back speakers is more than about 100 feet you should use a delay processor to time align the sound Since sound travels about 1 foot per millisecond it takes about 1 10 of a second to travel 100 feet 11 THERMAL AC POWER CONSIDERATIONS CONSIDERATIONS The amplifiers inside the Be sure the SRM350 is plugged into an SRM350 are convection outlet that is able to supply the correct volt cooled by a large age specified for your model If the voltage heatsink For efficient should drop below 97 96 of the specified line cooling itis important to voltage the built in amplifiers will no allow at least six inches of free space behind longer be able to supply rated power They the SRM350 will continue to operate down to 75 of If the ambient temperature in the room the rated line voltage but won t reach full is high it could cause the amplifiers to over power resulting in lower headroom 5 2 gt heat In this case you should try aiming a Under maximum SPL conditions where fan at the heatsink to increase the air flow musical peaks are clipping the SRM350 120V through the fins model draws 2 5 amps on av
31. our cable line This is an inexpensive device available from video dealers or you can make your own from two TV baluns standard TV 75 300 ohm adaptors __ Balun join insulate Balun The baluns are threaded at one end 75 ohm to fit TV coax cable and have two wires at the other end 300 ohm They will not affect the video quality If the hum persists try removing compo nents one at a time from the back of the mixer or preamplifier and check for hum each time turn off your equipment before you undo any connections It is fairly common to find more than one problem If your preamp or mixer are the only things connected to the SRM350s and the hum is still there try different connection cables or move the preamp mixer to another location 15 5 gt Repair Service for Mackie products is available at a factory authorized service center Ser vice for Mackie products living outside the United States can be obtained through local dealers or distributors If your SRM350 needs service please fol low these instructions 1 Review the preceding troubleshooting suggestions Please 2 Call Tech Support at 1 800 898 3211 8am to 5pm PST to explain the problem in detail If it appears that the SRM350 needs repair you will be given a Service Request Number Have your loudspeaker s serial number ready You must have an Service Request Number before you can obtain service at a fa
32. rica 31 20 654 4000 Fax 425 487 4337 www mackie com E mail sales mackie com
33. rs controls and indicators that you should understand IEC Socket This is where you connect the supplied AC linecord to provide AC power to the SRM350 s built in power amplifiers Plug the linecord into an AC socket properly configured for your particular model Note If you happen to lose the AC line cord replacements are readily available at any office or computer supply store Always use a three pin plug with a ground pin POWER Switch Switch up to turn the SRM350 on and switch down to turn it off Make sure the LEVEL control is down before you turn it on POWER Indicator When the POWER switch is turned on and the linecord is connected to an active AC Mains supply this indicator located just above the POWER switch glows to let you know that yow re ready to rock and roll The cool blue LED on the front of the speaker works in the same way POWER 1 CONTOUR 34 120 VAC 60Hz 2 50 230VA CONTOUR Pushing in this switch engages a filter that provides 3 dB of boost to the low and high frequencies below 100 Hz and above 12 kHz This provides a punchy crisp sound for most live music applications You can experiment with this switch by leaving it out for a while then pushing it in to de termine which way sounds best for your application It is especially useful when lis tening at lower volumes as it highlights the bass like a Loudness switch in addition to boosting the highs
34. s exposure to high sound pressure levels it is recommend ed that all persons exposed to equipment capable of producing these levels use hearing protectors while this unit is operation Ear plugs or protectors in the ear canals or over the ears must be worn when operating this amplification system in order to prevent a permanent hearing loss if exposure is in excess of the limits set forth here Duration Per Day Sound Level dBA Typical Slow Response 90 92 95 97 100 102 105 0 5 110 0 25 or less 115 In Hours CONTENTS IMPORTANT SAFETY INSTRUCTIONS INTRODUCTION HOOKUP DIAGRAMS Quick Start REAR PANEL DESCRIPTION IEC Socket POWER Switch POWER Indicator CONTOUR MIC LINE Switch SIGNAL Indicator LIMIT Indicator INPUT Connector THRU Connector Accessory Plate Example Duo in small club Subway Train Very loud classical music Tami screaming at Adrian about deadlines Loudest parts at a rock concert CONNECTIONS PLACEMENT THERMAL CONSIDERATIONS AC POWER CONSIDERATIONS SERVICE INFORMATION Warranty Service Troubleshooting CARE AND MAINTENANCE SRM350 SPECIFICATIONS SRM350 BLOCK DIAGRAM SRM350 LIMITED WARRANTY Don t forget to visit our website at www mackie com for more information about these and other Mackie products Part No 0008034 90 Rev B 12 04 2003 2004 LOUD Technologies Inc All Rights Reserved The SRM350 can produce a maximum SPL of 121 dB 1m
35. te question Is it plugged in Make sure the AC outlet is live check with a tester or lamp e Our next favorite question Is the POWER switch on If not try turning it on e 5 the blue light on the front panel illuminated If not make sure the AC outlet is live If so refer to No sound below e The AC line fuse inside the chassis is blown This is not a user serviceable part Refer to Repair on page 16 to find out how to proceed 14 No sound e 5 the input LEVEL control turned all the way down Follow the procedures in the Quick Start section on page 6 to verify that all the volume controls in the system are properly adjusted e 5 the signal source working and making union scale Make sure the connecting cables are in good repair and securely connected at both ends Make sure the output volume gain control on the mixing console or preamp is turned up sufficiently to drive the inputs of the speaker You should be able to see the SIGNAL LED blink on the rear panel e Make sure the preamp or mixer does not have a Mute on or a Tape or Processor loop engaged If you find something like this make sure the volume gain is turned down before disengaging the offending switch One side is way louder than the other e Are the LEVEL controls set the same on both active speakers e Check the PAN control or balance on the signal source It may be turned too far to one side If you re using a stereo
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