Meyer Sound SB-1 User's Manual
Contents
1. yellow green earth ground chassis AC cable color code If the colors referred to in the diagram don t correspond to the terminals in your plug use the following guidelines e Connect the blue wire to the terminal marked with an N or colored black e Connectthe brown wire to the terminal marked with an L or colored red e Connectthe green and yellow wire to the termi nal marked with an E or or colored green or green and yellow Power Requirements The SB 1 presents a dynamic load to the AC mains which causes the amount of current to fluctuate between quiet and loud operating levels Since different types of cables and circuit breakers heat up at varying rates itis essential to understand the types of current ratings and how they correspond to circuit breaker and cable specifications The maximum continuous RMS current is the maximum RMS current in a period of at least 10 seconds It is used to calculate the temperature increase in cables which is used to select cables that conform to electrical code standards It is also used to select the rating for slow reacting thermal breakers The maximum burst RMS current is the maximum RMS current in a period of approximately 1 second It is used to select the rating for most magnetic breakers The maximum peak current during burst is used to select the rating for fast reacting magnetic breakers and to calculate the peak voltage drop in long AC cables accord ing2. KE A eet ACHTUNG GEH UND REPARATUR ACHTUNG GEHAUSE NICHT OFFNEN WARTUNG UND REPARATUR NUR DURCH ELEKTROFACHKRAFTE High Limit red Low Limit red ATTENTION EN INTERNES NE SONT PERSONNEL TECH ATTENTION ENTRETIEN ET REPARATIONS LO Limi US RUS INTERNES NE SONT AUTORISEES QU AU m PERSONNEL TECHNIQUE QUALIFI O N K E e CIR Active Speaker Fault UK WARNING THIS APPARATUS MUST BE EARTHED UK WARNING T NO OPERATOR SERVIq NO OPERATOR SERVICEABLE PARTS INSIDE Input Polarity REFER SERVICING TO QUALIFIED PERSONNEL REFER SERVICING TO Power LED green red 2 3 de W Auto Voltage Select ala 95 125V 208 235V 50 60Hz 50 60Hz 1400W RMS MAX 1400W RMS MAX Input polarity switch Signal input and loop connectors Meyer i Sound Meyer Sound Berkeley CA USA S e e Se em men e pe zm Remote Monitoring System panel if RMS is installed Rear User Panel shown with the optional European Rear User Panel Remote Monitoring System RMS panel with IEC 309 connector Physical Dimensions Front Side Packed for shipping with yoke Weight SB 1 293 Ib 133 kg SB 1 with yoke 392 Ib 178 kg Contact Information Meyer Sound Laboratories Inc Meyer Sound Germany GmbH 2832 San Pablo Avenue Carl Zeiss Strasse 13 Berkeley California 94702 D 56751 Polch Telephone 510 486 1166 Germany FAX 510 486 8356 Telephone 26 54 96 00 5
3. Herstellung aller Signalverbindungen wieder einstecken Der Lautsprecher an eine geerdete zweipolige Dreiphasen Netzsteckdose anschlie en Die Steckdose mu mit einem geeigneten Abzweigschutz Sicherung oder Leistungsschalter verbunden sein Der Anschlu der unterbrechungsfreien Stromversorgung an einen anderen Steckdosentyp kann zu Stromschl gen f hren und gegen die rtlichen Vorschriften verstofsen Der Lautsprecher nicht an einem Ort aufstellen an dem sie mit Wasser oder berm ig hoher Luftfeuchtigkeit in Ber hrung kommen k nnte Darauf achten daf weder Wasser noch Fremdk rper in das Innere den Lautsprecher eindringen Keine Objekte die Fl ssigkeit enthalten auf oder neben die unterbrechungsfreie Stromversorgung stellen Um ein berhitzen dem Lautsprecher zu verhindern das Ger t vor direkter Sonneneinstrahlung fernhalten und nicht in der N he von w rmeabstrahlenden Haushaltsger ten z B Heizger t oder Herd aufstellen Im Inneren diesem Lautsprecher herrschen potentiell gef hrliche Spannungen Nicht versuchen das Ger t zu ffnen Es enth lt keine vom Benutzer reparierbaren Teile Reparaturen d rfen nur von ausgebildetem Kundenienstpersonal durchgef hrt werden Safety Summary AN Pour r duire le risque d lectrocution d branchez la prise principale de l haut parleur avant d installer le cable d interface allant a l audio Ne rebranchez le bloc d alimentation qu apr s avoir effec
4. 8 FAX 26 54 96 00 59 E Mail meyersound t online de E mail techsupport meyersound com http www meyersound com 11
5. S Meyer Sound Operating Instructions SB 1 Parabolic Sound Beam Copyright 1998 Meyer Sound Laboratories Inc All rights reserved Part Number 05 049 048 01 A Contents PS POW Gi raiser aE E 3 Cover Removal and Installatton 8 Audio NDUT E 4 High Frequency Pod Installation and Removal 8 AC Troubleshooting cccecesseeeeeeseeeeeeeaes 5 Driver Phase Verification cccceeeceeeeeeeeeees 9 Limiting and Protection Circuitry ceee0ee 5 Satety ln lu ET EE 10 Fans and Cooling Systems s oesrnneresrrennnne 7 Controls and Connectors ccceceeeeeeeeeeeeees 11 Yoke Installation and Hemoval 6 DIMENSIONS EE 11 Symbols Used These symbols indicate important safety or operating features in this booklet and on the chassis Dangerous voltages risk of electric shock Pour indiquer les risques r sultant de tensions dangereuses Zu die gefahren von gefahrliche spanning zeigen Para indicar azares provengo de peligroso voltajes K Frame or chassis A Important operating instructions Pour indequer important l Masse ch ssis instructions Zu wichtige betriebs anweisung und unter haltsanweisung zeigen Rahmen oder chassis Para indicar importante funcionar y mantenimiento instrucciones Armadura o chassis Declaration of Conformity According to ISO IEC Guide and EN 45014 D Protective earth ground Terre de protection Die schutzerde T
6. ate an imbalance in a configuration of speakers by functioning like a spectrum analyzer If the speakers in a subwoofer mid bass or mid hisubsystem begin to limit before reaching the required operating level for the entire system then that subsystem needs to be supplemented with additional speakers NOTE Although the TPL limiters exhibit smooth sonic characteristics we do not recommend using them for intentional compression effects Use an outboard compressor limiter to compress a mixed signal Fans and Cooling System The SB 1 uses a forced air cooling system with two fans to prevent the amplifiers from overheating A variable speed primary fan runs continuously with an inaudible operating noise of 22 dBA at 1 matits slowest speed The speed of the primary fan begins increasing when the temperature of the heatsinks reaches 42 C The fan reaches full speed at 62 C and is barely audible near the cabinet even without an audio signal In the unusual event that the temperature reaches 74 C the secondary fan turns on and is clearly audible The secondary fan turns on in response to e primary fan failure check status immediately e high source levels for a prolonged period in hot temperatures or direct sunlight e driver failure The secondary fan turns off when the temperature de creases to 68 C In the highly unlikely event that the secondary fan does not keep the temperature below 85 C the SB 1 auto matically shuts
7. been altered due to service performed by anyone other than certified Meyer personnel follow the steps listed below To verify driver polarity you will need a EP 4 pin polarity reverser a noise generator and a frequency specific SPL measurement system While a SIM 2201 would be ideal for this application any analyzer capable of accurate measurements at 500 Hz is acceptable Set up the SB 1 so that it is powered and reproducing the noise from the generator The dish should be facing straight ahead so that the pod assembly is level Place the measurement microphone 75 off axis and 5 from the high frequency pod Generate noise and measure the sound pressure level at 500 Hz Without altering the level of signal insert the EP 4 pin polarity reverser between the EP 4 pin connectors Measure the sound pressure level at 500 Hz If second measurement is greater than the first then the drivers are wired for proper polarity If the first measurement is greater than the first either the high driver is miswired in the high frequency pod or the MS 12 in the center of the dish is miswired The measurement you have just performed is a lobe measurement as 75 degrees is far outside of the coverage angle of the SB 1 A lobe measurement is necessary as the primary function of the MS 12 is to cancel the low frequencies outside of the primary 10 degree coverage angle When the phase of one of the drivers is reversed the MS 12 is no longer canceling l
8. d narrow beam width The physical construction of the SB 1 consists of a fiberglass parabolic reflector dish with a bullet shaped pod containing a 4 compression driver and an aspherical horn mounted over and aimed at the center of the dish One 12 band limited cone driver is embedded inside the center of the dish facing the pod to steer and focus the sound produced from the horn The dish housing serves as the parabolic aiming mechanism and contains the amplification signal processing and control electronics for both drivers The high frequency pod can be disas sembled and packed for shipping inside the dish AC Power The AC voltage operating ranges for the SB 1 are 85 134 V and 165 264 V at 50 or 60 Hz The SB 1 performs surge suppression for high voltage transients and can Safely withstand voltages up to 275 VAC y Continuous voltages above 275 VAC may damage the unit The Intelligent AC power supply protects the drivers and amplifier components when an AC source is applied to the SB 1 by e auto selecting the voltage e performing surge suppression and minimizing inrush current e filtering EMI After three seconds the main power supply is slowly ramped on The SB 1 uses a NEMA L6 20P or IEC 309 male power inlet and satisfies UL CSA and EC safety standards Use the following AC cable wiring diagram to create international or special purpose power connectors blue es brown hot neutral
9. dio and AC power sources Do not reset the breakers Contact Meyer Sound for repair information If problems persist contact Meyer Sound If repairs are necessary the SB 1 s modular components are easy to remove and ship Limiting and Protection Circuitry TruPower Limiting System Conventional limiters assume that the resistance of a speaker remains constant and set the limiting threshold by measuring voltage only This method is inaccurate because the speaker s resistance changes in response to the frequency content of the source material and thermal variations in the speaker s voice coil and magnet Conven tional limiters begin limiting prematurely which under utilizes system headroom and deprives the speaker of its fulldynamic range The TruPower Limiting TPL system accounts for varying speaker impedance by measuring current in addition to voltage to compute the power dissipation and voice coil temperature TPL allows the speaker to deliver its highest SPL across its entire frequency range during limiting eliminates long term power compression when operated at high levels for extended periods protects the drivers and extends component lifetime HI Limit and LO Limit LEDs on the user panel indicate TPL activity for the high and low frequency drivers respec tively The limiters for each driver function independently and do not affect the signal when the LEDs are inactive Limiting begins when the driver temperatu
10. down until AC power is removed and reapplied If the SB 1 shuts down again after cooling and reapplying AC power contact Meyer Sound for repair information The fans draw air in through ducts on the front of the cabinet over the heatsinks and out the rear of the cabinet Since dust does not accumulate in the amplifier circuitry its life span is increased significantly Make sure that the air ducts are clear and that there is at least 6 inches clearance for exhaust behind the cabinet power supply Si ee SE RE Ze dei amplifier RE heatsinks cooling fans A foam insert filter in combination with the entire front grill surface acts as an air filter for the cooling system Despite the filtering extensive use or a dusty operating environ ment can allow dust to accumulate along the path of the airflow preventing normal cooling We recommend periodically removing the grill filter and amplifier mod ule and using compressed air to clear dust from the grill filter fans and heatsinks Yoke Installation and Removal The floor method Lay two 2x4 boards at least five feet in length three feet apart and cover them with a heavy blanket or carpet With the protective cover over the dish lie the SB 1 down on the boards so that the rigging points are between the two boards and the amplifier is facing upwards Lay the positioning yoke on the ground so thatthe hole The hanging method closest to the fro
11. ierra proteccionista The Manufacturer Name Meyer Sound Laboratories Address 2832 San Pablo Avenue Berkeley California 94702 2204 USA conforms to the following Product Specifications EN 60065 EN 55022 Class A declares that the product Product Name SB 1 Product Options All Environmental Specifications for Meyer Sound Electronics Products Operating temperature 0 C to 45 C IEC 801 2 8 kV Nonoperating temp lt 40 C or gt 75 C IEC 801 3 3 V m Humidity to 95 at 35 C IEC 801 4 0 5 kV Signal Lines 1 0 kV Power Lines The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC Office of Quality Manager Berkeley California USA October 1 1995 Operating altitude to 4600 m 15 000 ft Nonoperating altitude to 6300 m 25 000 ft Shock 30 g 11 msec half sine on each of 6 sides Vibration 10 55 Hz 0 010 m peak to peak excursion UL uergen U 3K59 C COMMERCIAL AUDIO SYSTEM Made by Meyer Sound Berkeley Ca U S A European Office Meyer Sound Germany Carl Zeiss Strasse 13 D 56751 Polch Germany Product Summary The Meyer SB 1 Parabolic Sound Beam is the first device that propagates sound waves with SPLs that decrease as little as 3 dB per doubling of distance for more than 300 ft across a five octave frequency range with a consistent an
12. nt of the yoke is aligned with the 4 threaded rigging hole on both sides of the SB 1 On the top of the SB 1 is a single rigging point which can be used to hang the SB 1 for easy yoke installation and removal Place the split washer on the 4 grade rigging bolt and then place the flat washer on top of split washer so thatthe split washer is closest to the bolt head Hand thread the bolt washer assembly through the yoke and into the 4 hole on both sides of the SB 1 Hang the SB 1 so that the weight of the speaker is supported by the rigging hardware WSfy ye e vi SI w w ke _ KW Use a 11 hs hex socket wrench to tighten the bolt Use approximately 40 to 60 foot pounds of torque to tighten to the bolts sufficiently so that the SB 1 will not shift on the yoke as it is lifted off the ground With the speaker suspended the yoke can be easily removed or installed on the speaker When the bolts are tight stand the SB 1 on its yoke To remove the positioning yoke reverse this process Cover Removal and Installation The Dish cover is held in place by four sets of C brackets and locking pins as shown below It is easier to remove the dish cover if the pins and brackets are not supporting the entire weight of the cover To ease the stress on the pins loosen the 4 grade rigging bolt on the positioning yoke and angle the SB 1 so that the cover is facing upwards While p
13. ntial Inputs Pin3 Signal TF Case Earth AC ground and chassis Pins 2 and 3 carry the input as a differential signal their polarity can be reversed with the input polarity switch on the user panel If the switch is in the up position pin 2 is hot relative to pin 3 resulting in a positive pressure wave when a positive signal is applied to pin 2 Use standard audio cables with XLR connectors for balanced signal Sources ke Shorting an input connector pin to the case can form a ground loop and cause hum A single source can drive multiple SB 1s with a paralleled input loop creating an unbuffered hardwired loop connection Make certain that the source equipment can drive the total load impedance presented by the paralleled input circuit For example since the input impedance of a single SB 1 is 10 kQ cascading 20 SB 1s produces a balanced input impedance of 500 Q Ifa 150 Q source is used the 500 Q load results in a 2 28 dB loss AC Troubleshooting lf the Active lamp does not light after connection to an AC source for three seconds the problem is probably in the power supply In the unlikely case that the circuit breakers trip the white center buttons pop out the amplifier or power supply may be malfunctioning N If abnormal noise hum hiss popping is produced from the loudspeaker disconnect the audio source from the speaker If the noise stops then the problem is not within the loudspeaker check your au
14. obe energy but increasing it Keep in mind that this increase in energy is not desir able since the affected space is outside of the coverage angle 10 AS English To reduce the risk of electric shock disconnect the loud speaker from the AC mains before installing audio cable Reconnect the power cord only after making all signal connections Connect the loudspeaker to a two pole three wire grounding mains receptacle The receptacle must be connected to a fuse or circuit breaker Connection to any other type of receptacle poses a shock hazard and may violate local electrical codes Do not install the loudspeaker in wet or humid locations without using weather protection equipment from Meyer Sound Do not allow water or any foreign object to get inside the loudspeaker Do not put objects containing liquid on or near the unit To reduce the risk of overheating the loudspeaker avoid exposing it to direct sunlight Do not install the unit near heat emitting appliances such as a room heater or stove This loudspeaker contains potentially hazardous voltages Do not attempt to disassemble the unit The unit contains no user serviceable parts Repairs should be performed only by factory trained service personnel Deutsch Um die Gefahr eines elektrischen Schlages auf ein Mini mum zu reduzieren den Lautsprecher vom Stromnetz trennen bevor ggf ein Audio Schnittstellensignalkabel angeschlossen wird Das Netzkabel erst nach
15. re exceeds the maximum safe level and ceases when the temperature returns to normal The SB 1 performs within its acoustical specifications and operates at a normal temperature if the limit LEDs are on for no longer than two seconds and off for at least one second If the LEDs remain on for longer than three seconds the SB 1 is hard limiting with these negative consequences e Increasing the input level will not increase the volume e The system distorts due to clipping and nonlin ear driver operation e Unequal limiting between the low and high fre quency drivers alters the frequency response e Driverand amplifier components are subjected to maximum heat which shortens their life span Driver Troubleshooting with TPL The TPL LEDs can indicate serious driver problems if interpreted correctly If one SB 1 in a system exhibits substantially more TPL activity than others receiving the same audio signal then the driver corresponding to the excessively active LED may have a short circuit This is a potentially dangerous condition for the electronics shut the SB 1 down immediately The TPL circuit does not activate if there is no power dissipation in the driver regardless of the input signal level Therefore if all SB 1s in a system receiving the same audio signal exhibit TPL activity except one then that unit may have an open voice coil disconnect it and contact Meyer Sound for repair information The TPLLEDS can indic
16. ressing down on the cover push the button at the top of the pin in while pulling the pin out of the C bracket Once each of the pins are removed the cover can be easily lifted off the SB 1 To install the cover reverse these steps High Frequency Pod Installation and Removal The High Frequency Pod is stored inside the SB 1 during transportation To install the Pod onto the dish first loosen the 3 4 grade bolts on the yoke so that the dish is pointing upwards The pod assembly is stored in an internal compartment at the top of the dish Note that the legs of the pod assembly rest between the foam inserts Firmly grasp the pod and slowly slide it out of the internal compartment Be careful not to twistthe pod assembly during removal as you may damage the legs When the pod assembly is removed carefully set it down away from the dish close the compartment and reposi tion the dish so the compartment opening is facing upward The high frequency pod will be attached to the SB 1 using the same c brackets and locking pins which held the dish cover in place With the pod assembly in hand position yourself in front of the dish and angle the legs so that they are approxi mately aligned with the c brackets Make sure that the leg with the EP 4 pin connector is matched up with the bracket closest to the EP 4 pin connector on the dish While keeping a firm grip on the pod insert one of the legs into ac bracket so tha
17. s de se alizatci n Conecte elaltoparlante a un tomacorriente bipolar y trifilar con neutro de puesta a tierra El tomacorriente debe estar conectado a la protecci n de derivaci n apropiada ya sea un fusible o un disyuntor La conexi n a cualquier otro tipo de tomacorriente puede constituir peligro de descarga el ctrica y violar los c digos el ctricos locales No instale el altoparlante en lugares donde haya agua o humedad excesiva No deje que en el altoparlante entre agua ni ning n objeto extra o No ponga objetos con l quidos encima de la unidad ni cerca de ella Para reducir el riesgo de sobrecalentamiento no exponga la unidad a los rayos directos del sol ni la instale cerca de artefactos que emiten calor como estufas o cocinas Este altoparlante contiene niveles de voltaje peligrosos en potencia No intente desarmar la unidad pues no contiene piezas que puedan ser repardas por el usuario Las reparaciones deben efectuarse nicamente por parte del personal de mantenimiento capacitado en la f brica Controls and Connectors a THIS PRODUCT MUST BE GROUNDED in use is surface may reach hi Mains AC inlet Mains circuit breakers Tie wrap anchor to qualified per Ly To reduc isk of fire or electric Sberf Ge do not expose this appliancg4efain or moisture ATENCION ACCESO INTERNO SOLO SB 1 QUSK AYZeRIZADO A PERSONAL T CNICO CALIFICADO ATENCI N acg AUTORIZADO A P
18. to the formula Vpk Ipk x Rtotal cable drop Use the table below as a guide to select cables and circuit breakers with appropriate ratings for your operating voltage SB 1 Current Ratings Deise Max Burst RMS Max Peak During Burst 2 The minimum electrical service amperage required by a system of SB 1s is the sum of the maximum continuous RMS current for each speaker We recommend allowing an additional 30 above the minimum amperage to pre vent peak voltage drops at the service entry Safety Issues Pay close attention to these important electrical and safety issues Use a power cord adapter to drive the SB 1 from a Ei standard 3 prong outlet NEMA 5 15R 125 V max The SB 1 requires a grounded outlet Always use a grounding adapter when connecting to un grounded outlets Bon A Do not use a ground lifting adapter or cut the AC S cable ground pin Keep all liquids away from the SB 1 to avoid hazards from electrical shock Do not operate the unit if the power cables are frayed or broken Tie wrap anchors on the amplifier chassis provide strain relief for the power and signal cables Insert the plastic tie wraps through the anchors and wrap them around the cables Audio Input The SB 1 presents a 10 kQ input impedance to a three pin XLR connector wired with the following convention Pind 220 kQ to chassis and earth ground ESD clamped Pin 2 Signal Differe
19. tthe holes in the legs are aligned with the holes in the c bracket Then insert a pin through the holes while pressing down on its button head When the first pin is in position attach the leg opposite to the first one Repeat this process until all four legs are attached When all four legs are attached and locked in position use a tape measure to measure the distance between the edge pod facing the dish and the most inner surface of the dish Lay the tape along the side of the pod so thatitis not curved in its decent into the dish The distance from the dish edge of the pod to the surface of the dish must be 13 25 inches 0 25 If the distance does not match this specification the SB 1 will not operate properly remove the pod from the dish and reposition the legs by rotating the leg shaft in 180 increments to extend or shorten their length High Frequency Tranducer Pod Setup Dimensions When you have verified the pod position connect the EP 4 pin connectors The SB 1 is now ready for operation When removing the high frequency pod be careful not to let the weight of the pod bend any of the brackets as this will skew the position of the pod and damage the SB 1 When placing the pod back in the internal compartment remember to position the legs between the foam inserts Driver Polarity Verification All Meyer Sound Speakers leave the factory wired for proper polarity However if you suspect that the wiring may have
20. tu toutes les connec tions Fran ais Branchez l haut parleur dans une prise de courant 3 d rivations deux p les et la terre Cette prise doit tre munie d une protection ad quate fusible ou coupe circuit Le branchement dans tout autre genre de prise pourrait entra ner un risque d lectrocution et peut constituer une infraction la r glementation locale concernant les installations lectriques Ne pas installer l haut parleur dans un endroit o il y ade l eau ou une humidit excessive Ne pas laisser de l eau ou tout objet p n trer dans l haut parleur Ne pas placer de r cipients contenant un liquide sur cet appareil ni a proximit de celui ci Pour viter une surchauffe de l haut parleur conservez la a labri du soleil Ne pas installer a proximit d appareils d gageant de la chaleur tels que radiateurs ou appareils de chauffage Ce haut parleur contient des circuits haute tension pr sentant un danger Ne jamais essayer de le d monter Il n y a aucun composant qui puisse tre r par par l utilisateur Toutes les r parations doivent tre effectu es par du personnel qualifi et agr par le constructeur Espa ol Para reducir el riesgo de descarga el ctrica desconecte de la red el altoparlante antes de instalar el cable de se alizaci n de interfaz de la segnale Vuelva a conectar el conductor flexible de alimentaci n solamente una vez efectuadas todas las interconexione
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