Samson dB500a User manual

AUDIO
SOUND REINFORCEMENT
500 WATT Bi-AMPED ACTIVE LOUDSPEAKER

Safety Instructions/Consignes de sécurité/Sicherheitsvorkehrungen
ACHTUNG: Um die Gefahr eines Brandes oder Stromschlags zu verringern, sollten Sie dieses Gerät weder Regen noch Feuchtigkeit aussetzen.Um die Gefahr eines
Stromschlags zu verringern, sollten Sie weder Deckel noch Rückwand des Geräts entfernen. Im Innern befinden sich keine Teile, die vom Anwender gewartet werden kön-
nen. Überlassen Sie die Wartung qualifiziertem Fachpersonal.Der Blitz mit Pfeilspitze im gleichseitigen Dreieck soll den Anwender vor nichtisolierter “gefährlicher Spannung”
im Geräteinnern warnen. Diese Spannung kann so hoch sein, dass die Gefahr eines Stromschlags besteht. Das Ausrufezeichen im gleichseitigen Dreieck soll den Anwender
auf wichtige Bedienungs- und Wartungsanleitungen aufmerksam machen, die im mitgelieferten Informationsmaterial näher beschrieben werden.
Wichtige Sicherheitsvorkehrungen
1. Lesen Sie alle Anleitungen, bevor Sie das Gerät in Betrieb nehmen.
2. Bewahren Sie diese Anleitungen für den späteren Gebrauch gut auf.
3. Bitte treffen Sie alle beschriebenen Sicherheitsvorkehrungen.
4. Befolgen Sie die Anleitungen des Herstellers.
5. Benutzen Sie das Gerät nicht in der Nähe von Wasser oder Feuchtigkeit.
6. Verwenden Sie zur Reinigung des Geräts nur ein feuchtes Tuch.
7. Blockieren Sie keine Belüftungsöffnungen. Nehmen Sie den Einbau des Geräts nur entsprechend den Anweisungen des Herstellers vor.
8. Bauen Sie das Gerät nicht in der Nähe von Wärmequellen wie Heizkörpern, Wärmeklappen, Öfen oder anderen Geräten (inklusive Verstärkern) ein, die Hitze erzeugen.
9. Setzen Sie die Sicherheitsfunktion des polarisierten oder geerdeten Steckers nicht außer Kraft. Ein polarisierter Stecker hat zwei flache, unterschiedlich breite Pole. Ein
geerdeter Stecker hat zwei flache Pole und einen dritten Erdungsstift. Der breitere Pol oder der dritte Stift dient Ihrer Sicherheit. Wenn der vorhandene Stecker nicht in
Ihre Steckdose passt, lassen Sie die veraltete Steckdose von einem Elektriker ersetzen.
10. Schützen Sie das Netzkabel dahingehend, dass niemand darüber laufen und es nicht geknickt werden kann. Achten Sie hierbei besonders auf Netzstecker,
Mehrfachsteckdosen und den Kabelanschluss am Gerät.
11. Ziehen Sie den Netzstecker des Geräts bei Gewittern oder längeren Betriebspausen aus der Steckdose.
12. Überlassen Sie die Wartung qualifiziertem Fachpersonal. Eine Wartung ist notwendig, wenn das Gerät auf irgendeine Weise, beispielsweise am Kabel oder Netzstecker
beschädigt wurde, oder wenn Flüssigkeiten oder Objekte in das Gerät gelangt sind, es Regen oder Feuchtigkeit ausgesetzt war, nicht mehr wie gewohnt betrieben
werden kann oder fallen gelassen wurde.
WARNING: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. To reduce the hazard of electrical shock, do not remove cover or back. No
user serviceable parts inside. Please refer all servicing to qualified personnel.The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert
the user to the presence of uninsulated "dangerous voltage" within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to per-
sons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the
literature accompanying the product.
Important Safety Instructions
1. Please read all instructions before operating the unit.
2. Keep these instructions for future reference.
3. Please heed all safety warnings.
4. Follow manufacturers instructions.
5. Do not use this unit near water or moisture.
6. Clean only with a damp cloth.
7. Do not block any of the ventilation openings. Install in accordance with the manufacturers instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9. 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 third prong is provided for your safety. When the provided plug does not fit your outlet, consult an electrician
for replacement of the obsolete outlet.
10. Protect the power cord from being walked on and pinched particularly at plugs, convenience receptacles and at the point at which they exit from the unit.
11. Unplug this unit during lightning storms or when unused for long periods of time.
12. Refer all servicing to qualified personnel. Servicing is required when the unit has been damaged in any way, such as power supply cord or plug damage, or if liquid has
been spilled or objects have fallen into the unit, the unit has been exposed to rain or moisture, does not operate normally, or has been dropped.
ATTENTION: Pour éviter tout risque d’électrocution ou d’incendie, ne pas exposer cet appareil à la pluie ou à l’humidité. Pour éviter tout risque d’électrocution, ne pas ôter le
couvercle ou le dos du boîtier. Cet appareil ne contient aucune pièce remplaçable par l'utilisateur. Confiez toutes les réparations à un personnel qualifié. Le signe avec un éclair
dans un triangle prévient l’utilisateur de la présence d’une tension dangereuse et non isolée dans l’appareil. Cette tension constitue un risque d’électrocution. Le signe avec
un point d’exclamation dans un triangle prévient l’utilisateur d’instructions importantes relatives à l’utilisation et à la maintenance du produit.
Consignes de sécurité importantes
1. Veuillez lire toutes les instructions avant d’utiliser l’appareil.
2. Conserver ces instructions pour toute lecture ultérieure.
3. Lisez avec attention toutes les consignes de sécurité.
4. Suivez les instructions du fabricant.
5. Ne pas utiliser cet appareil près d’une source liquide ou dans un lieu humide.
6. Nettoyez l’appareil uniquement avec un tissu humide.
7. Veillez à ne pas obstruer les fentes prévues pour la ventilation de l’appareil. Installez l’appareil selon les instructions du fabricant.
8. Ne pas installer près d’une source de chaleur (radiateurs, etc.) ou de tout équipement susceptible de générer de la chaleur (amplificateurs de puissance par exemple).
9. Ne pas retirer la terre du cordon secteur ou de la prise murale. Les fiches canadiennes avec polarisation (avec une lame plus large) ne doivent pas être modifiées. Si votre
prise murale ne correspond pas au modèle fourni, consultez votre électricien.
10. Protégez le cordon secteur contre tous les dommages possibles (pincement, tension, torsion,, etc.). Veillez à ce que le cordon secteur soit libre, en particulier à sa sortie
du boîtier.
11. Déconnectez l’appareil du secteur en présence d’orage ou lors de périodes d’inutilisation prolongées.
12. Consultez un service de réparation qualifié pour tout dysfonctionnement (dommage sur le cordon secteur, baisse de performances, exposition à la pluie, projection liq-
uide dans l’appareil, introduction d’un objet dans le boîtier, etc.).

PRECAUCION: Para reducir el riesgo de incendios o descargas, no permita que este aparato quede expuesto a la lluvia o la humedad. Para reducir el riesgo de descarga eléc-
trica, nunca quite la tapa ni el chasis. Dentro del aparato no hay piezas susceptibles de ser reparadas por el usuario. Dirija cualquier reparación al servicio técnico oficial. El
símbolo del relámpago dentro del triángulo equilátero pretende advertir al usuario de la presencia de “voltajes peligrosos”no aislados dentro de la carcasa del producto, que
pueden ser de la magnitud suficiente como para constituir un riesgo de descarga eléctrica a las personas. El símbolo de exclamación dentro del triángulo equilátero quiere
advertirle de la existencia de importantes instrucciones de manejo y mantenimiento (reparaciones) en los documentos que se adjuntan con este aparato.
Instrucciones importantes de seguridad
1. Lea todo este manual de instrucciones antes de comenzar a usar la unidad.
2. Conserve estas instrucciones para cualquier consulta en el futuro.
3. Cumpla con todo lo indicado en las precauciones de seguridad.
4. Observe y siga todas las instrucciones del fabricante.
5. Nunca utilice este aparato cerca del agua o en lugares húmedos.
6. Limpie este aparato solo con un trapo suave y ligeramente humedecido.
7. No bloquee ninguna de las aberturas de ventilación. Instale este aparato de acuerdo a las instrucciones del fabricante.
8. No instale este aparato cerca de fuentes de calor como radiadores, calentadores, hornos u otros aparatos (incluyendo amplificadores) que produzcan calor.
9. No anule el sistema de seguridad del enchufe de tipo polarizado o con toma de tierra. Un enchufe polarizado tiene dos bornes, uno más ancho que el otro. Uno con
toma de tierra tiene dos bornes normales y un tercero para la conexión a tierra. El borne ancho o el tercero se incluyen como medida de seguridad. Cuando el enchufe
no encaje en su salida de corriente, llame a un electricista para que le cambie su salida anticuada.
10. Evite que el cable de corriente quede en una posición en la que pueda ser pisado o aplastado, especialmente en los enchufes, receptáculos y en el punto en el que
salen de la unidad.
11. Desconecte de la corriente este aparato durante las tormentas eléctricas o cuando no lo vaya a usar durante un periodo de tiempo largo.
12. Dirija cualquier posible reparación solo al servicio técnico oficial. Deberá hacer que su aparato sea reparado cuando esté dañado de alguna forma, como si el cable de
corriente o el enchufe están dañados, o si se han derramado líquidos o se ha introducido algún objeto dentro de la unidad, si esta ha quedado expuesta a la lluvia o la
humedad, si no funciona normalmente o si ha caído al suelo.
Instrucciones de seguridad / Istruzioni di Sicurezza
ATTENZIONE: per ridurre il rischio di incendio o di scariche elettriche, non esponete questo apparecchio a pioggia o umidità. Per ridurre il pericolo di scariche elettriche evitate
di rimuoverne il coperchio o il pannello posteriore. Non esistono all'interno dell'apparecchio parti la cui regolazione è a cura dell'utente. Per eventuale assistenza, fate riferimento
esclusivamente a personale qualificato. Il fulmine con la punta a freccia all'interno di un triangolo equilatero avvisa l'utente della presenza di "tensioni pericolose" non isolate
all'interno dell'apparecchio, tali da costituire un possibile rischio di scariche elettriche dannose per le persone. Il punto esclamativo all'interno di un triangolo equilatero avvisa
l'utente della presenza di importanti istruzioni di manutenzione (assistenza) nella documentazione che accompagna il prodotto.
Importanti Istruzioni di Sicurezza
1. Prima di usare l'apparecchio, vi preghiamo di leggerne per intero le istruzioni.
2. Conservate tali istruzioni per una eventuale consultazione futura.
3. Vi preghiamo di rispettare tutte le istruzioni di sicurezza.
4. Seguite tutte le istruzioni del costruttore.
5. Non usate questo apparecchio vicino ad acqua o umidità.
6. Pulite l'apparecchio esclusivamente con un panno asciutto.
7. Evitate di ostruire una qualsiasi delle aperture di ventilazione. Posizionatelo seguendo le istruzioni del costruttore.
8.
Non posizionatelo vicino a sorgenti di calore come radiatori, scambiatori di calore, forni o altri apparecchi (amplificatori compresi) in grado di generare calore.
9. Non disattivate la protezione di sicurezza costituita dalla spina polarizzata o dotata di collegamento a terra. Una spina polarizzata è dotata di due spinotti, uno più
piccolo ed uno più grande. Una spina dotata di collegamento a terra è dotata di due spinotti più un terzo spinotto di collegamento a terra. Questo terzo spinotto,
eventualmente anche più grande, viene fornito per la vostra sicurezza. Se la spina fornita in dotazione non si adatta alla vostra presa, consultate un elettricista per la sos-
tituzione della presa obsoleta.
10. Proteggete il cavo di alimentazione in modo che non sia possibile camminarci sopra né piegarlo, con particolare attenzione alle prese, ai punti di collegamento e al punto
in cui esce dall'apparecchio.
11. Staccate l'apparecchio dalla alimentazione in caso di temporali o tempeste o se non lo usate per un lungo periodo.
12. Per l'assistenza, fate riferimento esclusivamente a personale qualificato. È necessaria l'assistenza se l'apparecchio ha subito un qualsiasi tipo di danno, come danni al cavo
o alla spina di alimentazione, nel caso in cui sia stato versato del liquido o siano caduti oggetti al suo interno, sia stato esposto a pioggia o umidità, non funzioni corret-
tamente o sia stato fatto cadere.

Copyright 2002 - 2006, Samson Technologies Corp.
Printed January, 2007 v2.1
Samson Technologies Corp.
45 Gilpin Avenue
Hauppauge, New York 11788-8816
Phone: 1-800-3-SAMSON (1-800-372-6766)
Fax: [phone]
www.samsontech.com
ENGLISH
Introduction......................................... 1
dB500aFeatures..................................... 2
dB500aLayout....................................... 3
dB500aFrontViewLayout............................ 3
dB500aREARPANEL ................................. 4
Quick Set-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Positioning the dB500a. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
OperatingthedB500a................................ 7
OperatingthedB500a................................ 8
dB500aSystemSet-ups .............................. 9
Live Band PA System With Monitors. . . . . . . . . . . . . . . . . . 10
Setting Up Your dB500a System . . . . . . . . . . . . . . . . . . . . . 11
UsingSpeakerStands...............................11
StackingthedB500a................................11
PermanentInstallation..............................12
UsingtheFly-points.................................12
dB500aWiringGuide................................13
Specifications.......................................63
FRANÇAIS
Introduction........................................14
dB500a — Caractéristiques générales. . . . . . . . . . . . . . . . 15
dB500a — Vue d’ensemble ..........................16
dB500a — Vue d’ensemble de la face avant . . . . . . . . . . 16
dB500a—FACEARRIÈRE............................17
Miseenoeuvrerapide...............................18
Utilisation de l’enceinte dB500a . . . . . . . . . . . . . . . . . . . . . 19
dB500a—Configuration............................21
Sonorisationdepiano-bar...........................21
Sonorisation de groupe avec retours de scène . . . . . . . 22
Configuration du système dB500a . . . . . . . . . . . . . . . . . . . 23
Utilisation de pieds d’enceinte. . . . . . . . . . . . . . . . . . . . . . . 23
EmpilagedesdB500a...............................23
Configuration du système dB500 . . . . . . . . . . . . . . . . . . . . 24
Installationpermanente.............................24
Utilisation des points d’ancrage . . . . . . . . . . . . . . . . . . . . . 24
dB500a—Guidedecâblage........................25
Caractéristiques techniques . . . . . . . . . . . . . . . . . . . . . . . . . 63
DEUTSCHE
Einleitung ..........................................26
dB500aFeatures....................................27
dB500a Layout Vorderansicht. . . . . . . . . . . . . . . . . . . . . . . . 28
dB500aRÜCKSEITE..................................29
dB500abedienen...................................31
dB500aSystemaufbau ..............................33
Kompakte Salon-PA für Zwei . . . . . . . . . . . . . . . . . . . . . . . . 33
PA-System mit Monitoren für eine Live Band . . . . . . . . . 34
dB500aSystemeinrichten...........................35
Lautsprecherständer einsetzen . . . . . . . . . . . . . . . . . . . . . . 35
dB500astapeln.....................................35
dB500aSystemeinrichten...........................36
Festinstallation .....................................36
Fly-Vorrichtungen einsetzen. . . . . . . . . . . . . . . . . . . . . . . . . 36
dB500a Verdrahtungsanleitung. . . . . . . . . . . . . . . . . . . . . . 37
TechnischeDaten...................................64
ESPAÑOL
Introducción........................................38
Características del dB500a. . . . . . . . . . . . . . . . . . . . . . . . . . . 39
DistribucióndeldB500a.............................40
Distribución del panel frontal dB500a. . . . . . . . . . . . . . . . 40
PANEL TRASERO del dB500a . . . . . . . . . . . . . . . . . . . . . . . . . 41
Configuraciónrápida................................42
ManejodeldB500a .................................43
dB500a - Configuración del sistema. . . . . . . . . . . . . . . . . . 45
PAcompactoparados ..............................45
Sistema de PA de directo con monitores . . . . . . . . . . . . . 46
Configuración de su Sistema dB500a . . . . . . . . . . . . . . . . 47
Usodesoportesparacajas..........................47
Colocación de dB500a apilados. . . . . . . . . . . . . . . . . . . . . . 47
Configuración de su Sistema dB500a . . . . . . . . . . . . . . . . 48
Instalaciónfija......................................48
Usodelospuntosdeanclaje........................48
Esquema de cableado del dB500a . . . . . . . . . . . . . . . . . . . 49
Especificacionestécnica.............................64
ITALIANO
Introduzione........................................50
dB500a-Caratteristiche.............................51
dB500a-Componenti...............................52
dB500a - Componenti del Pannello Frontale . . . . . . . . . 52
dB500a - PANNELLO POSTERIORE. . . . . . . . . . . . . . . . . . . . 53
UsoImmediato .....................................54
Il Posizionamento dei dB500a . . . . . . . . . . . . . . . . . . . . . . . 55
L'UsodeidB500a....................................56
L'UsodeidB500a....................................57
dB500a - Configurazioni di Sistema . . . . . . . . . . . . . . . . . . 58
dB500a - Configurazioni di Sistema . . . . . . . . . . . . . . . . . . 59
Sistema PA con Monitor per un Gruppo dal Vivo. . . . . . 59
dB500a - Configurazioni di Sistema . . . . . . . . . . . . . . . . . . 60
L'Uso di Aste per Casse Acustiche . . . . . . . . . . . . . . . . . . . . 60
L'Incolonnamento dei dB500a . . . . . . . . . . . . . . . . . . . . . . . 60
dB500a - Configurazioni di Sistema . . . . . . . . . . . . . . . . . . 61
Installazione Permanente . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
L'Uso dei Punti di Sospensione (“Fly-point”) . . . . . . . . . . 61
dB500a-GuidaalCablaggio.........................62
dB500a-Specifiche.................................65
Table of Contents

Congratulations on purchasing the Samson dB500a! The dB500a speaker system by Samson takes the concept of pow-
ered PA systems to a new level. By combining 500 watts of power, advanced active processing and the highest quality
speaker and cabinet components, the dB500a provides studio quality sound for any kind of live application. The monitor
features a super heavy-duty, custom designed 15-inch low frequency driver and a 1.75 inch titanium diaphragm high
frequency driver on a 1" throat, wide dispersion horn. The dB500a offers crystal-clear audio and an ultra-wide sound
field. The top end is clean, smooth and vivid. The low-end is enormous. The dB500a is powered by a Class G amplifier
that pumps 400 Watts to the low frequency driver and a Class AB amp that provides 100 Watts to the high frequency
section—more than enough power to fill any large club. The efficient Class G amplifier design provides the power to
deliver transient spikes with incredible punch and sonic purity. The dB500a goes beyond concert-quality to studio-qual-
ity thanks to Samson’s exclusive Optimax processing. Optimax processing uses sophisticated circuitry to compress and
limit output at ideal levels. This allows the dB500a to provide huge volume levels without sacrificing low end. The dB500a
offers a practical back-panel, mixer-like preamp section that provides mic and line inputs with individual input level
controls. Controls for the selectable low pass filter and Optimax dynamics are also included. The trapezoidal shape of
the speaker cabinet offers more than just superior acoustics, not only is it a front-firing PA speaker, the dB500a’s are also
designed to operate as wedge-style monitors. The cabinet’s right and left side panels are joined at different angles, so
depending on the side you choose, you get a different dispersion angle, allowing for greater flexibility on stage. Adding
to the dB500a’s practical design is a catalog of mounting options. The compact cabinet can be easily stacked, perma-
nently installed, mounted using the integral 1 3/8" pole mount receptacle or suspended using the ten built-in fly points.
With the dB500a, setup and break down is quick and easy. Heavy-grade steel grill, scuff-resistant textured finish and rigid
corners offer excellent protection against wear and tear. As fixed sound reinforcement or as a durable, great-sounding
road PA, the dB500a active monitor is ideal for sound professionals and performers looking for serious power and studio
monitor sound quality from a PA speaker system.
In these pages, you’ll find a detailed description of the features of the dB500a PA system, as well a description of its front
and rear panels, step-by-step instructions for its setup and use, and full specifications. You’ll also find a warranty card
enclosed—please don’t forget to fill it out and mail it in so that you can receive online technical support and so we can
send you updated information about these and other Samson products in the future.
With proper care and adequate air circulation, your dB500a will operate trouble free for many years. We recommend you
record your serial number in the space provided below for future reference.
Serial number: ___________________________________________________
Date of purchase: __________________________________________________
Should your unit ever require servicing, a Return Authorization number (RA) must be obtained before shipping your unit
to Samson. Without this number, the unit will not be accepted. Please call Samson at 1-800-3SAMSON (1-800-372-6766)
for a Return Authorization number prior to shipping your unit. Please retain the original packing materials and if possible,
return the unit in the original carton and packing materials. If you purchased your Samson product outside the United
States, please contact your local distributor for warranty information and service.
Also, be sure to check out our website (www.samsontech.com) for complete information about our full product line.
Introduction
ENGLISH
1

dB500a Features
The Samson dB500a active two- way loudspeaker is an all-in-one solution for live sound. Here are some of its main fea-
tures:
• Two-way Active Loudspeaker – Standard speaker stand receptacle, 15 and 30 degree monitor angles, arrayable
with 10 Fly Points.
• Custom designed, heavy-duty, 15-inch low frequency driver with a 2.5-inch voice coil and 50 oz. magnet.
• 1"Throat, high-frequency compression driver with 1.75-inch titanium diaphragm and 75 oz. magnet structure.
• Efficient 400 watt, Class G power amplifier for low frequency transducer with High Speed, High Current
MOSFET rail switches.
• 100 watt class AB amplifier for high frequency compression driver.
• Massive torroidal power transformer.
• Sophisticated, multi-band dynamics processor with audibly transparent switchable limiting.
• Internal 24 dB/octave time aligned electronic crossover.
• Separate bass and treble controls.
• Defeatable low cut filter.
• Balanced microphone input with level control and Phantom Power for condenser microphones.
• Balanced line level input with level control.
• Rugged, road-worthy construction for high reliability.
• Multi-point protection for all fault conditions.
• Quality build and rugged construction ensure reliable performance from venue to venue.
• Three-year extended warranty.
ENGLISH
2

dB500a Layout
dB500a Front View Layout
1 Enclosure – Rugged polypropylene plastic
enclosure.
2 Stacking Bumper – Gender mating bum-
pers for stacking dB500’s.
3 Wide Dispersion Horn – 1 inch throat, 60
x 90 degree wide dispersion horn provides
extensive coverage and linear off- axis
response.
4 Titanium Compression Driver – Edge-
wound copper voice coil,1.75-inch (44mm),
titanium diaphragm with 1-inch throat
boasting high SPL while sounding smooth
and sweet.
5 Handle – One of three, ultra oversized, rub-
ber grip carry handles.
6 Power LED – Blue Light Emitting Diode illu-
minates indicating the unit is powered on
and ready for operation.
7 15 Inch Driver – Custom designed, heavy-
duty, 15” low frequency driver provides deep
bass.
8 Bass Port – Three precision tuned, low fre-
quency port tubes extend the bass response.
9 Steel Grill – Durable steel grill provides pro-
tection for, and easy access to low frequency
driver.
ENGLISH
3

dB500a REAR PANEL
1 MICLEVEL – Used to adjust the volume of the micro-
phone input.
2 AMP / CLIP LED - Dual color LED lights Green when
amp is active, flashes Red when the amp is clipped or
stays Red indicating the amplifier is in protect mode.
3 LINE LEVEL – Used to control the level of the line
input.
4 LOW FREQUENCY - Controls the low band
of the Channel Equalizer, +/- 12 dB at 100Hz.
5 HIGH FREQUENCY - Controls the high band of the
Channel Equalizer, +/- 12 dB at 10kHz.
6 LIMITER SWITCH - Used to engage the dB500a’s
Optimax dynamics processing. A red LED will illumi-
nate indicating the Optimax is on.
7 OUTPUT SWITCH - This switch is used to select the
signal that is sent to the Line Output. When the switch
is in the up position, the signal on the Line Output is
exactly the same as the signal on the Input. When the
switch is in the down position the Line Output carries
the MIX of the Mic and Line Inputs, as well as the High
and Low Equalizer and Low Filter.
8
dB500a Layout
PROTECTION
DESIGNED AND ENGINEERED IN THE UNITED STATES BY SAMSON TECHNOLOGIES
www.samsontech.com
dB500A
MADE IN CHINA
SAMSON
MIC LEVEL
0 10
AMP / CLIP
LINE OUTPUTMIC INPUT LINE INPUT
LINE LEVEL
010 12 1212 12
8 8 8 8
4 4 4 4
EQUALIZER
LOW 100Hz HIGH 10KHz
PEAK
12345
6
8
9
11
13
14
10
12
15
7
dB500a Rear Panel Layout
ENGLISH
4

Quick Set-Up
In the following pages of this manual you will find a detailed explanation of all the dB500a’s functions
and controls, but if you just want to get started quickly you can follow the steps below.
IMPORTANT NOTE: To ensure the cleanest and loudest possible output, and to protect
your speaker system, we highly recommend pressing the LIMITER switch on.
Using a Microphone
• Be sure that the dB500a’s Power switch is set to
the off position.
• Turn the LINE and MIC LEVEL controls fully coun-
terclockwise to the off position.
• Connect the power cable to an AC socket.
• Using a standard XLR cable, plug a microphone
into the dB500a’s MIC INPUT.
• Switch the dB500a’s Power switch to the ON posi-
tion.
• While speaking into the microphone, slowly raise
the MIC LEVEL control until you have reached the
desired level.
Using a Line Level Signal
• Be sure that the dB500a’s Power switch is set to
the off position.
• Turn the LINE and MIC LEVEL controls fully coun-
terclockwise to the off position.
• Connect the power cable to an AC socket.
• Using a standard XLR or 1/4 inch cable, connect
a line level signal from a mixer or keyboard into
the dB500a’s LINE INPUT.
• Switch the dB500a’s Power switch to the ON
position.
• Now, run an audio signal from your mixer (like some music from a CD) while slowly raising the dB500a’s
LINE LEVEL control until you have reached the desired level.
ENGLISH
5

Positioning the dB500a
Microphone Positioning - How to Reduce Feedback
Feedback is the annoying howling and squealing that is heard when the
microphone gets too close to the speaker and the volume is high. You get
feedback when the microphone picks up the amplified signal from the
speaker, and then amplifies through the speaker again, and then picks it up
again, and so on and so on. In general, it is always recommended that any
LIVE mic (a mic that’s on) is positioned behind the speaker enclosures. This
will give you the best level from your system before feedback. One possible
exception is when you are adjusting the sounds of the microphones, since
you want to listen in front of the speaker to hear properly. To do this, lower
your mixers MAIN VOLUME while setting the EQ and effect from in front of
the speakers. Once you have the sound you like, move the microphones to
behind the speakers and raise the Main volume.
Speaker Placement
Whenever possible, it is a good idea to raise the speakers above the heads of
the listening audience. The dB500a enclosures’feature standard 1 3/8”pole
mount receptacles, which are compatible with speaker stands from a variety
of manufacturers. In a smaller setting like a school cafeteria, library, or a mall
kiosk, you can also use the dB500a in one of the tilt back monitor positions,
which will improve the projection of the speakers and may eliminate the
need for speaker stands.
Using the dB500a as a Floor Monitor
The dB500a is an ideal solution for stage monitoring and thanks to its unique design, two wedge monitor
positions are possible. When placed on its
side with the high frequency horn facing to
the left of the enclosure, the dB500a is tilted
at a fifteen degree angle, optimizing perfor-
mance when used on a large stage. When
placed on its side with the high frequency
horn facing to the right of the enclosure, the
dB500a is tilted at a thirty degree angle opti-
mizing performance when used on smaller
stages. In a large stage monitor system, sev-
eral dB500a’s can be daisy-chained together
using the Line Output. In many instances
(when using the dB500a as a monitor system)
you may choose to use an external equalizer
like the Samson S Curve 131 to increase the
volume and reduce the chance of feedback.
In this case be sure to set the HIGH and LOW
EQ to the 12:00 or flat position.
ENGLISH
6

Controls and Functions
The following section details each part of the dB500a’s INPUT section including the MIC and LINE inputs, the
two-band EQ, as well as the MIC and LINE LEVEL controls.
MIC LEVEL
The dB500a’s MIC LEVEL controls the
overall level of the microphone input.
The MIC LEVEL control features an
audio taper. Raise the MIC Level to
adjust the volume of the microphone
connected to the MIC input.
NOTE: Be sure to keep the
MIC LEVEL control all the way off if
there is no microphone connected.
PEAK LED
The PEAK LED will illuminate RED when the dB500a’s mic input is receiving a clipped signal. If the
PEAK LED lights up, lower the MIC LEVEL control. Once the PEAK LED goes off, raise the level controls back up
until just before the PEAK LED lights.
DYNAMIC PROTECTION
The AMP / CLIP LED is a dual color LED used to monitor the output of the dB500a’s internal power amplifiers.
When the unit is first powered on, the AMP / CLIP LED will light red (indicating the output relay is open).
After the soft-start circuitry activates and the output relay closes, the AMP / CLIP will change to bright green
indicating the unit is ready for operation. The LED will flash red on signal power peaks, while the green LED is
still on. If there is a failure condition such as DC on the output, the output relay opens and the LED will switch
to solid red, indicating a fault. If this happens, contact your authorized Samson Audio Service Center.
LINE LEVEL
The dB500a’s LINE LEVEL controls the overall level of the LINE input and features an audio taper. Raise the
LINE Level to adjust the volume of the signal connected to the LINE input.
Using the Equalizer Section
The dB500a input channels feature a 2-band equalizer allowing you to adjust the high and low frequencies
independently. The channel’s frequency response is flat when the knobs are in the "12:00" position.
LOW
Rotating the LOW knob towards the right will boost the bass frequencies at 100Hz by 12dB, and rotating it
towards the left will cut the bass frequencies at 100Hz by 12dB.
HIGH
Rotating the HIGH knob towards the right will boost the treble frequencies at 10kHz by 12dB, and rotating it
towards the left will cut the treble frequencies at 10kHz by 12dB.
Operating the dB500a
1
2
3
PROTECTION
DESIGNED AND ENGINEERED IN THE UNITED STATES BY SAMSON TECHNOLOGIES
www.samsontech.com
dB500A
MADE IN CHINA
SAMSON
MIC LEVEL
0 10
AMP / CLIP
LINE OUTPUTMIC INPUT LINE INPUT
LINE LEVEL
010 12 1212 12
8 8 8 8
4 4 4 4
EQUALIZER
LOW 100Hz HIGH 10KHz
PEAK
1
2
3
4
465
5
6
ENGLISH
7

Operating the dB500a
Controls and Functions - continued
LOW FILTER
The dB500a also incorporates a Low-cut
FILTER which when engaged will roll off the low
frequency response of the cabinet beginning
at 80Hz. The low cut FILTER is two pole, which
means that the low frequency roll off will gradu-
ally cut more and more of the low frequencies
(12dB per octave). When you press the FILTER
switch in, the green LED will illuminate indicat-
ing that the Low-cut FILTER is engaged.
OUTPUT SWITCH
The Output switch is used to select the signal
that is sent to the Line Output. You can have
either a parallel output directly from the Line
input, or a mixed signal including the Mic and line inputs plus the EQ and limiter. When the switch is in the up position, the signal on
the Line Output is exactly the same as the signal on the Line Input. When the switch is in the down position the Line Output carries
the MIX of the Mic and Line Inputs. If the Level controls, High and Low Equalizer and Filter are used, they will also effect the signal
sent to the Line Output.
Optimax LIMITER
In order to keep the sound loud and clean, the dB500a incorporates Optimax multi-band Limiting. The Optimax Limiter divides
the frequency range into separate parts so they can independently react to the limiting circuit. This ensures that the high energy for
the low frequency of a bass drum doesn’t cause the vocals to be over compressed. When you press the LIMITER switch in, the red LED
will illuminate indicating that the Optimax dynamics processing is engaged.
IMPORTANT NOTE: Unless you are using an external limiter, it is highly recommended that the LIMITER switch be engaged at all
times. This will ensure the cleanest possible output, and will protect your speaker system when it accidentally receives a clipped sig-
nal from your mixer.
Input and Output Connectors
MIC XLR Input
The dB500a’s microphone input accepts a standard low impedance (150-600 Ohms) input and the connection is made via a standard
female XLR connector. The microphone input features a high quality, discrete transistor pre-amp providing transparency and extend-
ed dynamic range. The MIC input can work simultaneously with the LINE input so it is possible to use a microphone while playing
alone with a keyboard that is plugged into the dB500a’s LINE input. You can control the microphone input by using the MIC LEVEL
control as described in the section below.
LINE OUTPUT
You can run several monitors by using the LINE OUTPUT to daisy-chain one dB500a to another. The LINE OUTPUT is a balanced out-
put that, depending on the position of the OUTPUT switch,will have either a direct parallel output of the LIne input, or the Mix of the
Line and Mic input. For more information on the Output switch, see section 8 above. For more information on cables and wiring, see
page 13 of this manual for a detailed wiring diagrams.
LINE Combo Balanced Input
For added convenience, the dB500a employs a Combo connector that accepts a standard XLR mic cable for balanced line level
signals, or a standard 1/4" instrument cable for either balanced (TRS – TIP/RING/SLEEVE) or unbalanced (TS – TIP/SLEEVE) line level
signals. The LINE input can work simultaneously with the Mic input so it is possible to use a microphone while playing alone with a
keyboard that is plugged into the dB500a’s LINE input. You can control the LINE input by using the LINE LEVEL control as described
in the previous page. For more information on cable and wiring, see page 13 of this manual for a detailed wiring diagrams
7
PROTECTION
DESIGNED AND ENGINEERED IN THE UNITED STATES BY SAMSON TECHNOLOGIES
www.samsontech.com
dB500A
MADE IN CHINA
SAMSON
MIC LEVEL
0 10
AMP / CLIP
LINE OUTPUTMIC INPUT LINE INPUT
LINE LEVEL
010 12 1212 12
8 8 8 8
4 4 4 4
EQUALIZER
LOW 100Hz HIGH 10KHz
PEAK
8
10
9
7 8
10
9
11
11 12
12
ENGLISH
8

dB500a System Set-ups
Compact Lounge PA for Two
This example shows a PA system set-
up that can be used for a small club,
at a ceremony or in a lounge, using a
single dB500a for both a microphone
and vocal. A separate signal is sent
from the vocal microphone to the
dB500a’s Mic input, and from the key-
board to the dB500a’s Line input. The
individual Mic and Line level controls
allow you to create a mix right on the
dB500a. For further control, you can
use the dB500a’s two-band equalizer
to boost or cut the highs and/or low
frequencies adjusting the overall tonal
contour of the system.
ENGLISH
9

dB500a System Set-ups
This example shows a typical PA system using mixer with a pair of dB500a’s for the main left and right mix. A separate signal from the mixer’s AUX/MONITOR bus is sent to two additional dB500a’s placed in the tilt-back, wedge positions for use as floor monitors. In order to increase the output of the monitor system,the use of an external graphic equalizer like one of the Samson “E” or “S curve”series is highly recommended.
Live Band PA System With Monitors
ENGLISH
10

Setting Up Your dB500a System
Using Speaker Stands
The dB500a enclosure features a standard 1 3/8”, pole
mount receptacle, which is compatible with speaker
stands from a variety of manufacturers. Before installing
the dB500a on a speaker stand, loosen the thumbscrew
located on the bottom of the rear side of the enclosure.
Once installed on the stand, be sure to tighten the
thumbscrew to hold the speaker in place. Be careful not
to over tighten the thumbscrew to avoid stripping the
threads.
Stacking the dB500a
The dB500a enclosure incorporates gender mating
stack feet and bumpers that allows you to stack one
dB500a on top of another. When stacking the dB500a’s,
be certain that the rubber feet from the top unit are
securely fastened into the bottom unit’s stacking bum-
pers.
NOTE: DO NOT STACK dB500a’s OVER TWO (2) TALL.
ENGLISH
11

Setting Up Your dB500a System
Permanent Installation
The dB500a is logical solution for many fixed
installations in live sound venues, discos,
schools, houses of worship, convention cen-
ters and airport terminals to name a few. The
enclosure is extremely versatile for instal-
lation as it can be hung in several different
positions by using the ten Fly-points.
IMPORTANT NOTE: Hanging the dB500a is
serious business and therefore licensed and
insured professional sound contractors only
should perform such an installation.
Using the Fly-points
The dB500a features ten fly-points
located in pairs below each of the five
carry handles. By removing the handles
you will have access to the threaded
inserts that are compatible with a
variety of standard M8 hardware. The
dB500a’s ten fly points accept M8 rig-
ging hardware like that available from
ATM Flyware (www.atmflyware.com).
M8-1.25, 16mm shoulder eyebolts (ATM
Flyware part number, M8-1.25x16EYE)
can be used for hanging the enclosure.
When using the eyebolts, be sure to
use a 1.3 mm (0.05") thick flat-washer
for 8 mm bolts against the insert, and
a 2.6mm (0.09") thick lock-washer for 8
mm bolts between the flat-washer and
the eyebolt.
ENGLISH
12

dB500a Wiring Guide
Unbalanced 1/4”Connector
XLR to XLR Balanced
CONNECTING THE dB500a
The are several ways to interface the dB500a to support a variety of applications. The dB500a features balanced inputs
and outputs, so connecting balanced and unbalanced signals is possible.
Balanced TRS 1/4” Connector
Unbalanced 1/4”Connector to RCA
XLR to Balanced 1/4-Inch
ENGLISH
13

Merci d’avoir choisi l’enceinte Samson dB500a ! Les enceintes dB500a de Samson repoussent les limites des systèmes
d’enceintes actives. Grâce à sa puissance de 500 Watts, le traitement actif du signal et l’utilisation de haut-parleurs et
d’enceintes de la plus haute qualité, les dB500a vous permettent d’obtenir sur scène la même qualité de signal qu’en
studio. Les enceintes sont équipées d’un Woofer de 38 cm de fabrication spéciale et d’une robustesse à toute épreuve
— le Tweeter de 45 mm à membrane au titane utilise une trompe de 25 mm à angle de dispersion étendu. Les dB500a
délivrent un son clair et précis, avec un angle de diffusion ultra-large. Les aigus sont clairs, doux, précis et extrêmement
fidèles. Les graves sont d’une rare puissance. Les dB500a sont alimentées par un amplificateur de Classe G de 400 Watts
pour le Woofer et par un amplificateur de Classe AB de 100 Watts pour les aigus. Cette puissance vous garantit une
couverture plus que suffisante sur scène. Les amplificateurs de Classe G offrent un rendement très important et une puis-
sance suffisante pour reproduire avec fidélité et un punch énorme les transitoires. Les dB500a vont plus loin : elles vous
offrent un son de qualité studio sur scène, grâce au traitement Optimax exclusif à Samson. Le traitement Optimax fait
appel à des circuits sophistiqués pour compresser et limiter le signal de sortie à des niveaux optimisés. Ceci vous permet
d’obtenir des niveaux de sorties très importants sans pour autant y perdre dans les basses. Les dB500a sont équipées
d’une face arrière très pratique, d’une section d’entrées similaire à celle des consoles de mixage avec entrées micro et
ligne et réglages individuels des niveaux. Elles disposent également de réglages de filtre passe-bas et de traitement de
la dynamique Optimax. La forme trapézoïdale de l’enceinte permet d’obtenir une acoustique supérieure — les dB500a
ont été conçues pour être utilisées comme enceintes de façade de sonorisation et comme retours de scène. Les faces
latérales gauche et droite offrent un angle différent : selon le côté sur lequel repose l’enceinte, vous obtenez un angle de
dispersion différent. Les dB500a ont été conçues pour offrir de multiples options de montage. Cette enceinte compacte
peut être empilée, installée de façon définitive, montée sur un pied (embase de 1 pouce 3/8 intégré) ou suspendue à
l’aide de ses dix points d’ancrage intégrés. L’installation et la désinstallation des dB500a est simple et rapide. La grille
en acier de forte section, la finition anti-rayure et les cornières de protection lui assurent une robustesse à l’épreuve du
temps et des concerts. Qu’elles soient utilisées en sonorisations fixes ou en tournées, les enceintes actives dB500a sont
parfaites pour les professionnels de la sonorisation et pour les musiciens recherchant une enceinte de forte puissance
offrant une sonorité de qualité studio.
Dans ces pages, vous trouverez une description détaillée des caractéristiques des dB500a, ainsi qu’une description des
faces avant et arrière. Vous trouverez également des renseignements sur leur configuration, leur utilisation et leurs carac-
téristiques. Vous trouverez également une carte de garantie — n’oubliez pas de la remplir et de nous la retourner — nous
pourrons ainsi vous envoyer des informations sur les nouveaux produits Samson.
Si vous entretenez ce produit avec soin et si vous assurez sa ventilation correcte, les dB500a devraient fonctionner sans
souci pendant de très nombreuses années. Prenez le temps de noter le numéro de série du produit et sa date d’achat ci-
dessous :
Numéro de série : _______________________________________
Date d’achat : ___________________________________________
En cas de panne vous devez vous procurer un numéro d’autorisation de retour avant de nous renvoyer le produit. Sans
ce numéro, Samson ne peut pas accepter le produit. Appellez Samson au 1-800-3SAMSON (1-800-372-6766) pour obte-
nir un numéro d’autorisation ou contactez votre revendeur. Conservez les emballages d’origine pour nous renvoyer le
produit. Contactez votre revendeur pour de plus amples informations sur la garantie.
Pensez à consulter notre site Internet (www.samsontech.com) pour obtenir une information complète sur toute notre
gamme de produits.
Introduction
FRANÇAIS
14

dB500a — Caractéristiques générales
L’enceinte active deux-voies Samson dB500a offre une solution parfaitement adaptée à la sonorisation. Voici quelques
unes de ses caractéristiques principales :
• Enceinte active deux voies – embase pour pied standard, angles de placement à 15 et 30 degrés, installation par
suspension possible par 10 points d’attache.
• Woofer spécial haute fiabilité de 38 cm avec bobine de 64 mm et aimant de 1,4 kg.
• Tweeter à compression à trompe de 2,5 cm et diaphragme au titane de 4,4 cm, aimant de 2,1 kg.
• Amplificateur haut rendement de 400 Watts, Classe G pour le Woofer à commutation haute vitesse par
transistors MOSFET à débit en courant élevé.
• Amplificateur de Tweeter de 100 Watts de Classe AB.
• Transformateur torique surdimmensionné.
• Processeur de dynamique multibande sophistiqué à limitation commutable indécelable.
• Filtre actif interne à pente de 24 dB/octave aligné en temps.
• Réglage séparé des fréquences graves et aiguës.
• Filtre coupe-bas commutable.
• Entrée micro symétrique avec réglage de niveau et alimentation fantôme pour micros à condensateur.
• Entrée ligne symétrique avec réglage de niveau.
• Construction robuste et ultra fiable conçue pour les tournées.
• Protection à détection multiple de dysfonctionnement.
• Construction robuste et de qualité vous garantissant un fonctionnement assuré concert après concert.
• Garantie étendue de 3 ans.
FRANÇAIS
15

dB500a — Vue d’ensemble
dB500a — Vue d’ensemble de la face avant
1 Baffle – Structure haute résistance en poly-
propylène.
2 Supports d’empilage – Supports mâle/
femelle d’empilage de dB500.
3 Trompe large dispersion – 2,54 cm à la
base, dispersion large de 60 x 90 degrés pour
une couverture étendue et réponse hors-axe
linéaire.
4 Tweeter à compression au titane – Bobine
à filet plat en cuivre de 44 mm, membrane
au titane avec trompe de 2,54 cm. Niveau
de sortie élevé et sonorité douce et précise.
5 Poignées – Trois poignées de transport en
caoutchouc.
6 Led Power – Led bleue indiquant que
l’enceinte est sous tension et prête à l’emploi
7 Woofer de 38 cm – Woofer haute résistance
spécial de 38 cm, délivrant des basses puis-
santes.
8 Évents Bass reflex – Trois évents accordés
permettant d’étendre la réponse dans les
basses.
9 Grille acier – Grille en acier haute fiabilité de
protection du woofer permettant un accès
aisé au haut-parleur.
FRANÇAIS
16