Meyer Sound LYON-M User manual

Keep these important operating instructions.Check www.meyersound.com for updates.OPERATING INSTRUCTIONSLINE ARRAYLYON™ Linear Line Array Loudspeaker

ii© 2014–2020Meyer Sound. All rights reserved.LYON Operating Instructions, PN 05.232.005.01 B3 The contents of this manual are furnished for informational purposes only, are subject to change without notice, and should not be construed as a commitment by Meyer Sound Laboratories Inc. Meyer Sound assumes no responsibility or liability for any errors or inaccuracies that may appear in this manual. Except as permitted by applicable copyright law, no part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, recording or otherwise, without prior written permission from Meyer Sound.CAL, Compass Go by Meyer Sound, Compass RMS, Intelligent AC, LEO-M, LEOPARD, LYON, MAPP, RMS, UltraSeries, and all alpha-numeric designations for Meyer Sound products and accessories are trademarks of Meyer Sound. Meyer Sound, Compass, Constellation, Galileo, LEO, QuickFly, Spacemap, Thinking Sound, TruPower, TruShaping, and U-Shaping, are registered trademarks of Meyer Sound Laboratories Inc. (Reg. U.S. Pat. & Tm. Off.). All third-party trademarks mentioned herein are the property of their respective trademark holders.

iiiIMPORTANT SAFETY INSTRUCTIONSThese symbols indicate important safety or operating features in this booklet and on the frame or chassis:SYMBOLS USED1. 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. Do not block any ventilation openings. Install in accordance with Meyer Sound's installation instructions.8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.9. Do not defeat the safety purpose of the grounding-type plug. A grounding type plug has two blades and a third grounding prong. The third prong is 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. The AC mains plug or appliance coupler shall remain readily accessible for operation.11. Only use attachments/accessories specified by Meyer Sound.12. Use only with the caster rails or rigging specified by Meyer Sound, or sold with the apparatus. Handles are for carrying only.13. Unplug this apparatus during lightning storms or when unused for long periods of time.14. If equipped with an external fuse holder, the replaceable fuse is the only user-serviceable item. When replacing the fuse, only use the same type and the same value.15. Refer all other servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as when the power-supply cord or plug has been damaged; liquid has been spilled or objects have fallen into the apparatus; rain or moisture has entered the apparatus; the apparatus has been dropped; or when for undetermined reasons the apparatus does not operate normally.WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not install the apparatus in wet or humid locations without using weather protection equip-
ment from Meyer Sound.WARNING: Class I apparatus shall be connected to a mains socket outlet with a protective earthing connection.CAUTION: Disconnect the mains plug before disconnecting the power cord from the loud-
speaker.Dangerous voltages: risk of electric shockImportant operating instructionsReplaceable FuseProtective earth groundHot surface: do not touchGefährliche Spannungen: StromschlaggefahrHinweis auf wichtige Punkte der BetriebsanleitungAustauschbare SicherungSchutzerdeHeiße Oberfläche:nicht berührenPour indiquer les risquesrésultant de tensionsdangereusesInstructions d'utilisation importantesFusible remplaçableTerre de protectionSurface chaude: ne pas toucherPara indicar voltajespeligrososInstrucciones importantesde funcionamiento y/oMantenimientoFusible reemplazableToma de tierra de protecciónSuperficie caliente:no tocar
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LYON OPERATING INSTRUCTIONSivEnglish •To reduce the risk of electric shock, disconnect the appara-
tus from the AC mains before installing audio cable. Recon-
nect the power cord only after making all signal connections. •Connect the apparatus 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 elec-
trical codes. •Do not install the apparatus in wet or humid locations with-
out using weather protection equipment from Meyer Sound. •Do not allow water or any foreign object to get inside the apparatus. Do not put objects containing liquid on or near the unit.•To reduce the risk of overheating the apparatus, avoid exposing it to direct sunlight. Do not install the unit near heat-emitting appliances, such as a room heater or stove. •If equipped with an external fuse holder, the replaceable fuse is the only item that can be serviced by the user. When replacing the fuse, only use the same type and value.•This apparatus contains potentially hazardous voltages. Do not attempt to disassemble the unit. The only user-service-
able part is the fuse. All other repairs should be performed only by factory-trained service personnel.Deutsch•Zur Minimierung der Gefahr eines elektrischen Schlages trennen Sie das Produkt vor dem Anschluss von Audio-und/oder Steuerleitungen vom Stromnetz. Das Netzkabel darf erst nach Herstellung aller Signalverbindungen wieder eingesteckt werden.•Das Produkt an eine vorschriftsgemäss installierte dreipolige Netzsteckdose (Phase, Neutralleiter, Schutzleiter) anschließen. Die Steckdose muss vorschriftsgemäß mit einer Sicherung oder einem Leitungsschutzschalter abgesi-
chert sein. Das Anschließen des Produkts an eine anders ausgeführte Stromversorgung kann gegen Vorschriften ver-
stossen und zu Stromunfällen führen.•Das Produkt nicht an einem Ort aufstellen, an dem es direk-
ter Wassereinwirkung oder übermäßig hoher Luft-
feuchtigkeit ausgesetzt werden könnte, solange es sich nicht um ein Produkt handelt, dass mit der Meyer Sound Weather Protection Option ausgestattet ist.•Vermeiden Sie das Eindringen von Wasser oder Fremd-
körpern in das Innere des Produkts. Stellen Sie keine Objekte, die Flüssigkeit enthalten, auf oder neben dem Pro-
dukt ab.•Um ein Überhitzen des Produkts zu verhindern, halten Sie das Gerät von direkter Sonneneinstrahlung fern und stellen Sie es nicht in der Nähe von wärmeabstrahlenden Geräten (z.B. Heizgerät oder Herd) auf.•Bei Ausstattung mit einem externen Sicherungshalter ist die austauschbare Sicherung das einzige Gerät, das vom Benu-
tzer gewartet werden kann. Verwenden Sie beim Austausch der Sicherung nur den gleichen Typ und Wert.•Dieses Gerät enthält möglicherweise gefährliche Spannun-
gen. Versuchen Sie nicht, das Gerät zu zerlegen. Der einzige vom Benutzer zu wartende Teil ist die Sicherung. Alle anderen Reparaturen dürfen nur von im Werk geschultem Servicepersonal ausgeführt werden.Français•Pour éviter tout risque d’électrocution, débranchez l’enceinte de la prise secteur avant de mettre en place le câble audio.Ne rebranchez le cordon secteur qu’après avoir procédé à toutes les connexions de signal audio•Brancher l'appareil sur une prise secteur à trois fils et deux pôles avec mise à la terre. La prise doit être reliée à un fus-
ible ou à un disjoncteur. Le branchement à tout autre type de prise présente un risque de choc électrique et peut enfreindre les codes locaux de l'électricité. •N’installez pas l’enceinte dans des endroits humides ou en présence d’eau sans utiliser d’équipements de protection adéquats fournis par Meyer Sound.•Ne laissez pas d’eau ou d’objet étranger, quel qu’il soit, pénétrer à l’intérieur de l’enceinte. Ne posez pas d’objet contenant du liquide sur ou à proximité de l’enceinte. •Pour réduire les risques de surchauffe, évitez d’exposer directement l’enceinte aux rayons du soleil. Ne l’installez pas à proximité de sources de chaleur, radiateur ou four par exemple.•S'il est équipé d'un porte-fusible externe, le fusible rem-
plaçable est le seul élément qui peut être réparé par l'utilisa-
teur. Lors du remplacement du fusible, n'utilisez que le même type et la même valeur.•Cet appareil contient des tensions potentiellement dangere-
uses. N'essayez pas de démonter l'appareil.Le fusible est la seule pièce réparable par l'utilisateur. Toutes les autres réparations doivent être effectuées uniquement par du per-
sonnel de maintenance formé en usine.Español•Para reducir el riesgo de descarga eléctrica, desconecte el aparato de la red eléctrica antes de instalar el cable de audio. Vuelva a conectar el cable de alimentación sólo después de realizar todas las conexiones de señal.•Conecte el aparato a una toma de corriente de tres hilos y dos polos con conexión a tierra. El receptáculo debe estar conectado a un fusible o disyuntor. La conexión a cualquier otro tipo de receptáculo representa un riesgo de descarga eléctrica y puede violar los códigos eléctricos locales.

IMPORTANT SAFETY INSTRUCTIONSv•No instale el aparato en lugares húmedos o mojados sin usar el equipo de protección contra intemperie de Meyer Sound. •No permita que penetre agua u otros objetos extraños en el interior del aparato. No coloque objetos que contengan líquido sobre o cerca de la unidad.•Para reducir el riesgo de sobrecalentamiento del aparato, evite exponerlo a la luz solar directa. No instale la unidad cerca de aparatos que emitan calor, como un calefactor o una estufa•Si está equipado con un portafusibles externo, el fusible reemplazable es el único elemento que puede ser reparado por el usuario. Cuando reemplace el fusible, use solamente el mismo tipo y valor.•Este aparato contiene voltajes potencialmente peligrosos. No intente desmontar la unidad. La única pieza que el usu-
ario puede reparar es el fusible. Todas las demás repara-
ciones deben ser realizadas únicamente por personal de servicio capacitado de fábrica.

LYON OPERATING INSTRUCTIONSvi

viiCONTENTS Important Safety InstructionsiiiSymbols UsediiiChapter 1: Introduction9How to Use This Manual9LYON Linear Line Array Loudspeaker9Chapter 2: Power Requirements11AC Power Distribution11AC Input12Wiring AC Power Cables12LYON Voltage Requirements13LYON Current Requirements13Do Not Reset Circuit Breakers!13Intelligent AC Power Supply13Electrical Safety Guidelines14Chapter 3: Amplification and Audio15Audio Connectors15Cable Rings16TruPower Limiting16Amplifier Cooling System17Chapter 4: QuickFly Rigging19Important Safety Considerations!19LYON Rigging Options19LYON GuideALinks22When to Move the Locking Pins to the “Stow Pin” Position23Chapter 5: RMS Remote Monitoring System25Compass RMS Software25RMS Module25Neuron ID for RMS Module26Resetting the RMS Module26Chapter 6: System Design and Integration Tools27MAPP System Design Tool27Galileo Galaxy Network Platform2828Appendix A: Product Integration29Delay Integration29Starting Points31

LYON OPERATING INSTRUCTIONSviiiAppendix B: Meyer Sound Weather Protection33Weather Protection Components34Installation Practices34IP Ratings35Appendix C: Rain Hoods37LYON Collapsible Rain Hood37LYON Quick-Clip Rain Hood38Appendix D: Specifications41LYON-M Dimensions43LYON-W, LYON-WXT Dimensions44

9CHAPTER 1: INTRODUCTIONHOW TO USE THIS MANUALMake sure to read these instructions in their entirety before configuring a Meyer Sound loudspeaker system. In particular, pay close attention to material related to safety issues.As you read these instructions, you will encounter the following icons for notes, tips, and cautions:NOTE: A note identifies an important or useful piece of information relating to the topic under discussion.TIP: A tip offers a helpful tip relevant to the topic at hand. CAUTION: A caution gives notice that an action may have serious consequences and could cause harm to equipment or personnel, or could cause delays or other problems.Information and specifications are subject to change. Updates and supplementary information are available at www.meyersound.com.Meyer Sound Technical Support is available at:•Tel: [phone]•Tel: [phone] (after hours support)•Web: www.meyersound.com/supportLYON LINEAR LINE ARRAY LOUDSPEAKERThe self-powered LYON™ linear line array loudspeaker (Figure 1) is a member of Meyer Sound’s LEO® Family of linear loudspeakers, designed to reproduce audio faithfully with tremendous power and clarity, without coloring the sound, even when pushed to the limit. LYON delivers the same headroom and precision as the acclaimed LEO-M™—with the same cutting-edge technology housed in a lighter and more compact cabinet. Optimized rigging and self-powered configuration streamline both setup and breakdown for LYON systems. LYON is ideal for medium- to large-scale array applications that do not require the extreme long-throw capability of LEO-M.For greater flexibility, LYON is available in three models: LYON-M for primary array coverage, LYON-W for wide coverage, and LYON-WXT for wide coverage with extended vertical coverage. LYON-W can be used wherever wide coverage is needed in LYON arrays, at the bottom or in the middle of primary arrays, or even at the top of outfill arrays. Because LYON-W matches the acoustical characteristics and vertical coverage of LYON-M, transitions for horizontal coverage are seamless. LYON models are matched acoustically to LEO-M and can be used for downfill and midfill at the bottom of LEO-M arrays, and as supplemental sidefill and outfill arrays in LEO-M systems.LYON arrays are ideally paired with Meyer Sound’s 1100-LFC low-frequency control element for bass reproduction. Entire systems are driven by Meyer Sound’s Galileo GALAXY Network Processor, which provides matrix routing, alignment, and processing for array components. To guarantee optimum performance, including coverage patterns and maximum peak SPL, LYON systems should be designed with Meyer Sound’s MAPP™ prediction software.LYON’s high-frequency section comprises two proprietary compression drivers coupled to a constant-directivity horn
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Figure 1: LYON Loudspeaker

LYON OPERATING INSTRUCTIONS10through a patented REM® manifold. The manifold’s smooth radiating characteristics afford tight vertical coverage. The low-frequency section includes two long-excursion cone drivers, also proprietary, capable of withstanding high, continuous output levels. Precise phase and magnitude alignment between low- and high-frequency drivers yields consistent and well-behaved system responses.The unit’s onboard power amplifier operates at nominal voltages from 85–134 V AC and 165–264 V AC at 50–60 Hz. TruPower® limiting ensures maximum driver protection, minimizing power compression while yielding high constant output under high continuous and peak power conditions. The amplifier, control electronics, and power supply are contained in a single field-replaceable module located on the rear of the cabinet.Meyer Sound’s RMS™ remote monitoring system comes standard with all LYON loudspeakers and provides comprehensive monitoring of system parameters on a Mac® or Windows®-based computer. Convenient XLR 5-pin connectors allow the use of composite cables carrying both RMS and balanced audio signals. XLR 3-pin audio connectors are also available.LYON offers intuitive rigging with captive GuideALinks™ that can be set to the desired splay angles while cabinets rest in caster frames. The optional MTG-LYON top grid (Figure 2) flies arrays of up to 22 LYONs at a 5:1 safety factor (with some restrictions—always use MAPP to verify load ratings). The optional MTF-LEO/LYON transition frame flies LYONs at the bottom of LEO-M arrays. Stacks of up to four LYON cabinets can be securely transported with the optional MCF-LYON caster frame; durable nylon covers, accommodating stacks of two, three, or four units, are available to protect the cabinets during transport.The LYON cabinet is constructed of premium multi-ply birch and coated with a slightly textured black finish. A powder-coated, hex-stamped, steel grille with acoustical black mesh protects the unit’s drivers. Other options include weather protection and custom color finishes for fixed installations and applications with specific cosmetic requirements.Figure 2: LYON Array with MTG-LYON Top Grid

11CHAPTER 2: POWER REQUIREMENTSLYON combines advanced loudspeaker technology with equally advanced power capabilities. Understanding power distribution, voltage and current requirements, and electrical safety guidelines is critical to the safe operation of LYON.AC POWER DISTRIBUTIONAll components in an audio system (self-powered loudspeakers, mixing consoles, and processors) must be properly connected to an AC power distribution system, ensuring that AC line polarity is preserved and that all grounding points are connected to a single node or common point using the same cable gauge (or larger) as the neutral and line cables.CAUTION: Make sure the voltage received by LYON remains within its 85–134 V AC and 165–264 V AC operating ranges. In addition, the ground line must always be used for safety reasons and the line-to-ground voltage should never exceed 250 V AC (typically 120 V AC from line to ground).CAUTION: Before applying AC power to any Meyer Sound self-powered loudspeaker, make sure that the voltage potential difference between the neutral and earth-ground lines is less than 5 V AC when using single-phase AC wiring.NOTE: Improper grounding of connections between loudspeakers and the rest of the audio system may produce noise or hum, or cause serious damage to the input and output stages of the system’s electronic components.120 V AC, 3-Phase Wye System (Single Line)Line-Neutral-Earth/GroundFigure 3 illustrates a basic 120 V AC, 3-phase Wye distribution system with the loudspeaker load distributed across all three phases, with each loudspeaker connected to a single line and common neutral and earth/ground lines. This system delivers 120 V AC to each loudspeaker.120 V AC, 3-Phase Wye System (Two Lines)Line-Line-Earth/GroundFigure 4 illustrates a 120 V AC, 3-phase Wye distribution system with each loudspeaker connected to two lines and a common earth/ground line. This configuration is possible because LYON tolerates elevated voltages from the ground line and does not require a neutral line. This system delivers 208 V AC to each loudspeaker.TIP: The 120 V AC, 3-phase Wye system with two lines is recommended because it allows loudspeakers to draw less current than with single-line systems, thereby reducing voltage drop due to cable resistance. It also excludes the potential of varying ground to neutral voltages producing an audi-
ble hum.230 V AC, 3-Phase Wye System (Single Line)Line-Neutral-Earth/GroundFigure5 illustrates a basic 230 V AC, 3-phase Wye distribution system with the loudspeaker load distributed across all three phases, with each loudspeaker connected to a single line and common neutral and earth/ground lines. This system delivers 230 V AC to each loudspeaker.
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Figure 3: 120 V AC, 3-Phase Wye System (Single Line to Loudspeakers)Figure 4: 120 V AC, 3-Phase Wye System (Two Lines to Loudspeakers)
Neutral
Earth/Ground
Line 1 (120 V AC)
Line 3 (120 V AC)
Line 2 (120 V AC)
Loudspeaker
(120 V AC)
Loudspeaker
(120 V AC)
Loudspeaker
(120 V AC)
Neutral
Earth/Ground
Loudspeaker
(208 V AC)
Loudspeaker
(208 V AC)
Loudspeaker
(208 V AC)
Line 1 (120 V AC)
Line 3 (120 V AC)
Line 2 (120 V AC)

LYON OPERATING INSTRUCTIONS12CAUTION: For 230 V AC, 3-phase Wye systems, never connect two lines to the AC input of LYON, as the resulting voltage would exceed the upper voltage limit (275 V AC) and will damage the loudspeaker.AC INPUTThe LYON user panel includes an AC Input connector that supplies power to the loudspeaker. The 3-conductor PowerCON 32 (Figure 6) is rated at 32 A and uses a locking connector that prevents accidental disconnections.LYON ships with a black powerCON 32 cable mount connector, rated at 32 A, for assembling AC power cables. Make sure to use an AC power cable that is wired correctly (see “Wiring AC Power Cables” on page 12) and equipped with the appropriate power plug (on the other end) for the area in which you will operate the unit.LYON requires a grounded outlet. To operate safely and effectively, it is extremely important that the entire system be properly grounded.WIRING AC POWER CABLESLYON ships with a black powerCON 32 cable mount connector (Figure 7), rated at 32 A, for assembling AC power cables. The pins on the powerCON 32 cable mount connector are labeled as follows:•L (Line)•N (Neutral)•PE (Protective Earth or Ground)How AC power cables are wired is determined by the type of AC power distribution system used (see “AC Power Distribution” on page 11). When wiring AC power cables for single-line systems, use one of the wiring schemes described in Table 1 and illustrated in Figure8:CAUTION: When wiring AC power cables and distribution systems, it is important to preserve AC line polarity and connect the earth ground on both ends of the cable. LYON requires a grounded connection. Always use a grounded outlet and plug. It is extremely important that the system be properly grounded to operate safely and properly. Do not ground-lift the AC cable.Figure 5: 230 V AC, 3-Phase Wye System (Single Line to Loudspeakers)Figure 6: PowerCON 32 AC Input Connector
Neutral
Earth/Ground
Line 1 (230 V AC)
Line 3 (230 V AC)
Line 2 (230 V AC)
Loudspeaker
(230 V AC)
Loudspeaker
(230 V AC)
Loudspeaker
(230 V AC)
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Figure 7: PowerCON 32 Cable Mount ConnectorTable 1: AC Wiring SchemeWire ColorAttach to theFollowingTerminalU.S. / Canada60HzEuropean50HzBlackBrownHot or live (L)WhiteBlueNeutral (N)GreenGreen and YellowProtective earth / ground (E or PE)Figure 8: AC Wiring Scheme, illustrated
L
N
PE
SIDE FRONT REAR
U.S./Canada, 60 HzBlack (L)Europe, 50 HzGreen (E)White (N)Brown (L)Blue (N)Green/yellow (E)
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CHAPTER 2: POWER REQUIREMENTS13Supported PowerCON 32 Cable GaugesWhile the powerCON 32 connector supports cable gauges of 14–10 AWG (2.5–6.0 mm2), because of LYON’s current draw, 10 AWG (6.0 mm2) should be used whenever possible.LYON VOLTAGE REQUIREMENTSLYON operates as intended when receiving AC voltage within the following ranges:•85–134 V AC, 50–60 Hz•165–264 V AC, 50–60 HzIf the voltage drops below 85 V, the loudspeaker uses stored power to continue operating temporarily; the loudspeaker powers off if the voltage does not return to its operating range.If the voltage rises above 275 V, the power supply could become damaged.CAUTION: The power source for LYON should always operate within the required operating range, at least a few volts from the upper and lower limits. This ensures that AC voltage variations from the service entry—or peak voltage drops due to cable runs—will not cause the loudspeaker’s amplifier to cycle on and off or cause damage to the power supply.LYON CURRENT REQUIREMENTSCurrent draw for loudspeakers is dynamic and fluctuates as operating levels change. Because different cables and circuit breakers heat up at varying rates, it is important to understand the following types of current ratings and how they affect circuit breaker and cable specifications.•Idle Current — The maximum rms current during idle periods.•Maximum Long-Term Continuous Current — The maximum rms current during a period of at least 10 seconds. The maximum long-term continuous current is used to calculate temperature increases for cables to ensure that the size and gauge of the cables conform to electrical code standards. The current rating is also used to select appropriately rated, slow-reacting thermal breakers, which are recommended for loudspeaker power distribution.•Burst Current — The maximum rms current during a period of around 1 second. The burst current is used as a rating for magnetic breakers. It is also used for calcu-
lating the peak voltage drop in long AC cable runs according to the following formula:V pk (drop) = I pk x R (cable total)•Maximum Instantaneous Peak Current — A rating for fast-reacting magnetic breakers.•Inrush Current — The spike of initial current encoun-
tered when powering on.Use the information provided in Table 2 as a guide for selecting the gauge of cables and the circuit breaker ratings for the system’s operating voltage.The minimum electrical service amperage required by a loudspeaker system is the sum of the maximum long-term continuous current for all loudspeakers. An additional 30 percent above the combined Maximum Long-Term Continuous amperages is recommended to prevent peak voltage drops at the service entry.NOTE: For best performance, the AC cable volt-
age drop should not exceed 10 V (10 percent at 115 V and 5 percent at 230 V). This ensures that the AC voltage variations from the service entry—or peak voltage drops due to longer cable runs—do not cause the amplifier to cycle on and off.DO NOT RESET CIRCUIT BREAKERS!CAUTION: In the unlikely event that one of LYON’s circuit breakers trips (the center button disengages), disconnect the AC power cable and contact Meyer Sound for repair information. DO NOT attempt to reset the breaker or reconnect the AC power cable. INTELLIGENT AC POWER SUPPLYLYON’s Intelligent AC™ power supply automatically selects the correct operating voltage (allowing the loudspeaker to be used internationally without manually setting voltage switches), eliminates high inrush currents with soft-start power up, suppresses high-voltage transients up to several kilovolts, filters common mode and differential mode radio
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Table 2: LYON Current DrawCurrent Draw208 V AC 230 V AC100 V ACIdle0.7 A rms 0.6 A rms 1.2 A rms Maximum Long-Term Continuous6.2 A rms 5.6 A rms 11.2 A rms Burst8.2 A rms 7.5 A rms 15.4 A rms Maximum Instantaneous Peak25 A peak 23 Apeak 45 A peak Inrush<15Apeak<15Apeak<15Apeak
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LYON OPERATING INSTRUCTIONS14frequencies (EMI), and sustains operation temporarily during low-voltage periods.Powering on LYON When powering on LYON, the following startup events take place over several seconds.1.Audio output is muted.2.Voltage is detected and the power supply mode is auto-
matically adjusted as necessary.3.The primary fan turns on.4.The power supply ramps up.5.On the user panel, the Active/Status LED flashes multiple colors successively.6.The Active/Status LED turns solid green, indicating the loudspeaker is already unmuted and ready to output audio.CAUTION: If the Active/Status LED does not turn solid green, or LYON does not output audio after 10 seconds, remove AC power immediately and verify that the voltage is within the required range. If the problem persists, contact Meyer Sound Technical Support.ELECTRICAL SAFETY GUIDELINESMake sure to observe the following important electrical and safety guidelines.•The powerCON 32 connector should not be engaged or disengaged when under load or energized. Either de-energize or disconnect the other end of the cable.•LYON requires a grounded outlet. Always use a grounded outlet and plug.•Do not use a ground-lifting adapter or cut the AC cable ground pin.•Make sure the AC power cable for the loudspeaker has the appropriate power plug (on the other end) for the area in which you will operate the loudspeaker.•Do not operate the loudspeaker if the power cable is frayed or broken.•Keep all liquids away from LYON loudspeakers to avoid hazards from electrical shock.•Use the cable rings (see “Cable Rings” on page 16) on the rear of the LYON cabinet to reduce strain on the AC power cable (and audio cables). Do not use the cable rings for any other purpose.
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15CHAPTER 3: AMPLIFICATION AND AUDIOLYON’s drivers are powered by a proprietary three-channel amplifier with bridged MOSFET output stages. The audio signal is processed with an electronic crossover plus correction filters for flat phase and frequency responses, and by driver protection circuitry. Each channel has peak and rms limiters that prevent driver over-excursion and regulate voice coil temperatures.The LYON user panel (Figure9) includes Input and Loop output connectors for audio, Limit and Active LEDs, and RMS connectors and controls (see Chapter 5, “RMS Remote Monitoring System”).AUDIO CONNECTORSLYON is available with XLR 3-pin or 5-pin connectors for audio Input and audio Loop output (Figure10 and Figure 11). XLR 5-pin connectors accommodate both balanced audio and RMS signals.Audio Input (XLR 3-Pin or 5-Pin Female)The XLR 3-pin or 5-pin female Input connector accepts balanced audio signals with an input impedance of 10 kOhm. The connector uses the following wiring scheme:•Pin 1 — 1 kOhm to chassis and earth ground (ESD clamped)•Pin 2 — Signal (+)•Pin 3 — Signal (–)•Pin 4 — RMS (polarity insensitive)•Pin 5 — RMS (polarity insensitive)•Case — Earth (AC) ground and chassisNOTE: Pins 4 and 5 (RMS) are included only with XLR 5-pin connectors.Figure 9: LYON User PanelFigure 10: XLR 5-Pin Audio Connectors, Input and Loop OutputFigure 11: XLR 3-Pin Audio Connectors, Input and Loop Output

LYON OPERATING INSTRUCTIONS16Pins 2 and 3 carry the input as a differential signal. Pin 1 is connected to earth through a 1 kOhm, 1000 pF, 15 V clamped network. This circuitry provides virtual ground lift for audio frequencies while allowing unwanted signals to bleed to ground. Make sure to use balanced XLR audio cables with pins 1–3 connected on both ends. Telescopic grounding is not recommended and shorting an input connector pin to the case may cause a ground loop, resulting in hum.TIP: If unwanted noise or hiss is produced by the loudspeaker, disconnect its input cable. If the noise stops, there is most likely nothing wrong with the loudspeaker. To locate the source of the noise, check the audio cable, source audio, AC power, and electri-
cal ground.Audio Loop Output (XLR 3-Pin or 5-Pin Male)The XLR 3-pin or 5-pin male Loop output connector allows multiple loudspeakers to be looped from a single audio source. The Loop output connector uses the same wiring scheme as the Input connector (see “Audio Input (XLR 3-Pin or 5-Pin Female)” on page 15). For applications that require multiple LYONs, connect the Loop output of the first loudspeaker to the Input of the second loudspeaker, and so forth.NOTE: The Loop output connector is wired in parallel to the Input connector and transmits the unbuffered source signal even when the loud-
speaker is powered off.Calculating Load Impedance for Looped Audio SignalsTo avoid distortion when looping multiple loudspeakers, make sure the source device can drive the total load impedance of the looped loudspeakers. In addition, the source device must be capable of delivering approximately 20 dBV (10V rms into 600 ohms) to yield the maximum SPL over the operating bandwidth of the loudspeakers.To calculate the load impedance for the looped loudspeakers, divide 10 kOhms (the input impedance for a single loudspeaker) by the number of looped loudspeakers. For example, the load impedance for ten LYONs is 1000 ohms (10 kOhms / 10). To drive this number of looped loudspeakers, the source device should have an output impedance of 100 ohms or less. This same rule applies when looping LYONs with other Meyer Sound self-powered loudspeakers.NOTE: Most source devices are capable of driving loads no less than 10 times their output impedance.TIP: Audio outputs from Meyer Sound’s Galileo GALAXY Network Platform have an out-
put impedance of 50 ohms. Each output can drive up to 20 Meyer Sound (10 kOhm) loudspeakers without distortion.CAUTION: Make sure that all cabling for looped loudspeakers is wired correctly (Pin 1 to Pin 1, Pin 2 to Pin 2, and so forth) to prevent the polarity from being reversed. If one or more loudspeakers in a system have reversed polarity, frequency response and coverage will be significantly degraded.CABLE RINGSTwo cable rings are provided on the rear of the LYON cabinet (Figure 12). Power and audio cables should be tied off to the rings to reduce strain on the cables and prevent damage to them during installation. The cable rings should not be used for any other purpose.CAUTION: LYON cable rings should only be used to reduce strain on cables. The cable rings should not be used for any other purpose.TRUPOWER LIMITINGLYON employs Meyer Sound’s advanced TruPower® limiting. Conventional limiters assume a constant loudspeaker impedance and set the limiting threshold by measuring voltage alone. This method is inaccurate because loudspeaker impedances change as frequency content in the Figure 12: Cables Tied Off to Cable Ring
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CHAPTER 3: AMPLIFICATION AND AUDIO17source material changes, and as thermal values for the loudspeaker’s voice coil and magnet vary. Consequently, conventional limiters often begin limiting prematurely, which reduces system headroom and dynamic range.In contrast, TruPower limiting anticipates varying loudspeaker impedances by measuring both current and voltage to compute the actual power dissipation in the voice coil. This approach improves performance, both before and during limiting, by allowing the driver to produce the maximum SPL across its entire frequency range, while also retaining signal peaks. TruPower limiting also eliminates power compression at high levels over lengthy periods, which helps regulate voice coil temperatures, thereby extending the life of the driver.HF and LF Limit LEDs The low- and high-frequency drivers for LYON are powered by separate amplifier channels, each with their own limiter. Limiting activity is indicated with two Limit LEDs on the user panel (Figure 13). The HF Limit LED indicates limiting for the high-frequency channel and the LF Limit LED indicates limiting for the low-frequency channel.When engaged, the limiters not only protect the drivers but also prevent signal peaks from causing excessive distortion in the amplifier channels, thereby preserving headroom and maintaining smooth frequency response at high levels. When levels return to normal, below the limiter thresholds, limiting ceases.LYON performs within its acoustical specifications at normal temperatures when the Limit LEDs are unlit, or when the LEDs are lit for 2 seconds or less and then turn off for at least 1 second. If the LEDs remain lit for longer than 3 seconds, the loudspeaker enters hard limiting where:•Increases to the input level have no effect•Distortion increases due to clipping•Drivers are subjected to excessive heat and excursion, thereby compromising their lifespanCAUTION: The Limit LEDs indicate when a safe, optimum level is exceeded. If a LYON loudspeaker system begins to limit before reaching the desired SPL, consider adding more loudspeakers to the system.AMPLIFIER COOLING SYSTEMLYON employs forced-air cooling with four ultra high-speed fans (two primary, and two reserve) to prevent the amplifier from overheating (see Table 3 for details). The fans draw air in through ducts on the rear of the cabinet, over the heat sinks, and out the rear of the cabinet. Because dust does not accumulate in the amplifier and power circuitry, their lifespans are increased significantly.CAUTION: To keep LYON from overheating, allow at least 6 inches behind the cabinet for proper ventilation.CAUTION: If a LYON loudspeaker system consistently overheats before reaching the desired SPL, consider adding more loudspeakers to the system.TIP: When LYON is connected to an RMS net-
work, the Compass RMS software provides additional feedback on the loudspeaker’s hardware status and operating temperature. For more informa-
tion, see Chapter 5, “RMS Remote Monitoring Sys-
tem.”Figure 13: LYON Limit LEDs Table 3: LYON FansPrimary FansReserve FansTypeUltrahigh-speedUltrahigh-speedNumber2 2 Location1 for each heat sink (2)1 for each heat sink (2)Fan speeds and heat sink temp.<34 °CHalf speed<52 °COff34–50 °CRamps up>52 °CFull speed50–84 °CFull speed>95 °CAudio muted, fans continue at full speed>95 °CAudio muted, fans continue at full speed<86 °CAudio unmuted, fans continue at full speed<86 °CAudio unmuted, fans continue at full speed
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LYON OPERATING INSTRUCTIONS18

19CHAPTER 4: QUICKFLY RIGGINGIMPORTANT SAFETY CONSIDERATIONS!When installing Meyer Sound loudspeakers and subwoofers, the following precautions should always be observed:•All Meyer Sound products must be used in accordance with local, state, federal, and industry regulations. It is the owner’s and user’s responsibility to evaluate the reli-
ability of any rigging method for their application. Rigging should only be carried out by experienced professionals.•Use mounting and rigging hardware that has been rated to meet or exceed the weight being hung.•Make sure to attach mounting hardware to the building’s structural components (roof truss), and not just to the wall surface.•Make sure bolts and eye bolts are tightened securely. Meyer Sound recommends using Loctite® on all threaded fasteners.•Inspect mounting and rigging hardware regularly. Imme-
diately replace any worn or damaged components.LYON RIGGING OPTIONSTable 4 summarizes the available rigging options for LYON. For complete information about rigging hardware, including dimensions, weight, configuration, and load ratings, refer to the MTG-LYON Assembly Guide (PN 05.232.097.01) available at www.meyersound.com.NOTE: The MCF-LYON caster frame and PBF-LYON do not include quick-release pins because they are secured with the quick-release pins included with the loudspeaker. Table 4: LYON Rigging OptionsModelWeightFeaturesRequired Quick-Release PinsRequired ShacklesMTG-LYON top grid (PN 40.232.038.01) 171 lb (77.6 kg) With some restrictions, flies up to 22 LYONs at a 5:1 safety factor; accommodates a variety of pickup configurations with six pickup points; includes attachment points to accommodate brackets and adapters for lasers and inclinometers 7/16 x 1.50-inch (red button), PN 134.051, qty 4 included3/4-inch or 7/8-inch MVP motor Vee plate (PN40.215.184.01)20 lb (9.1kg)Fine tunes the horizontal aim of arrays; compatible with MTG-LEO-M, MTG-LYON, MTG-1100, and MG-LEOPARD/900 grids—3/4-inch or7/8-inchMTF-LEO-M/LYONtransition frame (PN40.215.250.01)85 lb (38.6kg)With some restrictions, flies up to eight LYONs at a 5:1 safety factor below LEO-M arrays for downfill; includes rear attachment points for pull-back7/16 x 1.50-inch (red button), PN 134.051, qty 4 included5/8-inch5/16 x 0.875-inch (red button), PN 134.025, qty 4 includedMTF-LYON/LEOPARDtransition frame (PN40.232.140.01)71 lb (32.2kg)With some restrictions, flies up to ten LEOPARDs at a 5:1 safety factor below LYON arrays for downfill; includes rear attachment points for pull-back; collapsible for easy transport on top of LEOPARD stacks7/16 x 0.90-inch (black button), PN 134.050, qty 0 included1/2-inch or5/8-inch5/16 x 0.875-inch, red button, PN134.025, qty 8 includedPBF-LYON pull-back frame (PN 40.232.125.01) 9.5 lb (4.3 kg) Attaches to bottom of LYON arrays (to the bottom cabinet) and provides pull-back for extreme array downtilt; can also be used for pull-up to expand the array’s splay angles during installation so the blue locking pins can be more easily inserted 7/16 x 0.90-inch (black button), PN 134.050, qty 0 included5/8-inch RPP-LEO-M rear pull-up plate (PN40.215.181.01)6lb(2.7kg)Helps assemble large arrays with wide splay angles by providing pull-up (with a motor) to expand the array’s splay angles during installation so the blue locking pins can be more easily inserted1/2 x 2.50-inch (blue button), PN 134.007, qty 2 included5/8-inchMCF-LYON caster frame (PN 40.232.045.01) 90 lb (40.8 kg) Safely transports up to four LYON cabinets, making it easy to assemble and disassemble arrays in blocks of four cabinets 7/16 x 0.90-inch (black button), PN 134.050, qty 0 included—

LYON OPERATING INSTRUCTIONS20Rigging Example, LYON Array with Pull-UpMTG-LYON Top Grid Oriented for maximum array downtilt with three pick-up points and four motors(8) LYON-MPrimary array coverageRPP-LEO-MRear Pull-Up PlateHelps assemble large arrays with wide splay angles by providing pull-up (with a motor) to expand the array’s splay angles during installation so the blue locking pins can be more easily insertedPBF-LYONPull-Back FrameAttached to bottom cabinet to provide pull-back for extreme array downtilt; can also be used for pull-up to expand the array’s splay angles during installation so the blue locking pins can be more easily inserted(3) LYON-WWide coverageMVP Motor Vee PlateAttached to rear center of grid with two motors to adjust the horizontal aim of the array(1) LYON-WXTWide down fill coverage