1. Introducción
Gracias por la compraasing the Marshall SC20C Studio Classic 1x10" 20/5-watt Tube Combo Ampmás duradero. Esta amplifier is designed to deliver the iconic JCM800 tone in a compact and versatile package, suitable for both studio and stage use. Featuring a 10-inch speaker and switchable power output, the SC20C offers authentic tube amplification with modern convenience.
Please read this manual thoroughly before operating your amplifier to ensure safe and optimal performance. Keep this manual for future reference.
2. Instrucciones de seguridad importantes
- Leer instrucciones: Lea todas las instrucciones de seguridad y funcionamiento antes de utilizar este producto.
- Instrucciones de conservación: Conserve estas instrucciones para futuras consultas.
- Preste atención a las advertencias: Respete todas las advertencias del producto y de las instrucciones de funcionamiento.
- Siga las instrucciones: Siga todas las instrucciones de uso y funcionamiento.
- Agua y humedad: No utilice este aparato cerca del agua.
- Limpieza: Limpiar únicamente con un paño seco.
- Ventilación: No obstruya las aberturas de ventilación. Instale el producto según las instrucciones del fabricante.
- Calor: No lo instale cerca de fuentes de calor como radiadores, rejillas de calefacción, estufas u otros aparatos (incluidos ampificadores) que producen calor.
- Protección del cable de alimentación: Proteja el cable de alimentación para que no sea pisado ni aplastado, especialmente en los enchufes, receptáculos y en el punto donde sale del aparato.
- Adjuntos/Accesorios: Utilice únicamente accesorios especificados por el fabricante.
- Períodos relámpago/no utilizados: Desenchufe este aparato durante tormentas eléctricas o cuando no lo utilice durante períodos prolongados.
- Servicio: Encargue todas las tareas de mantenimiento a personal técnico cualificado. Se requiere realizar el mantenimiento cuando el aparato haya sufrido algún daño, como por ejemplo si el cable de alimentación o el enchufe están dañados, si se ha derramado líquido o han caído objetos en el interior del aparato, si el aparato ha estado expuesto a la lluvia o la humedad, si no funciona con normalidad o si se ha caído.
- Alto voltage: Tubo amplifiers operate with high voltages internally. Do not attempt to open the chassis or perform any internal servicing. Risk of electric shock.
- Conexión de altavoz: Always ensure a speaker load is connected before powering on the ampLificador para evitar daños.
3. Contenido del paquete
Por favor, marque la casilla correspondiente a los siguientes artículos:
- Marshall SC20C Studio Classic 1x10" Combo Ampmás vivaz
- Cable de alimentación
- Manual de usuario (este documento)
If any items are missing or damaged, please contact your retailer or Marshall support immediately.
4. Producto terminadoview
The Marshall SC20C is a tube-driven combo amplifier designed to deliver classic Marshall tones. It features a single 10-inch speaker and a robust control set for shaping your sound.

Figura 4.1: Frente view of the Marshall SC20C Studio Classic Combo Amplificador. Esta imagen muestra el amplifier's black tolex covering, gold-colored control panel, and the iconic Marshall logo. The single 10-inch speaker is visible behind the grille cloth.
4.1 Controles del panel frontal
The front panel provides access to all primary sound-shaping controls.
- Toma de entrada: Connect your guitar or other instrument here using a standard 1/4" instrument cable.
- Preamp Volumen (ganancia): Controls the amount of gain in the preamp section. Higher settings increase distortion and sustain.
- Volumen principal: Controla el volumen de salida general del ampmás duradero.
- Triplicar: Ajusta la respuesta de alta frecuencia del ampmás duradero.
- Medio: Ajusta la respuesta de frecuencia media.
- Bajo: Ajusta la respuesta de baja frecuencia.
- Presencia: Adds high-end sparkle and clarity by affecting the power amp's high-frequency response.
- Output Select (20W/5W): A switch to select between 20-watt and 5-watt output modes. The 5-watt mode provides earlier power amp saturation at lower volumes.
- Interruptor de alimentación: Gira el ampmás vivaz encendido o apagado.
- Interruptor de espera: Activa o desactiva el alto volumen.tage to the tubes. Always use the standby switch when warming up or cooling down the ampmás duradero.
4.2 Conexiones del panel posterior
The rear panel houses essential connections for power, external speakers, and effects loops.
- Entrada de alimentación de CA: Conecte aquí el cable de alimentación suministrado.
- Salidas de altavoz: Connect external speaker cabinets here. Ensure the impedance matches the amplifier's output (e.g., 8 Ohm, 16 Ohm). The internal speaker is typically connected to one of these.
- Effects Loop Send: Connect to the input of your external effects pedals.
- Effects Loop Return: Connect to the output of your external effects pedals.
- Salida DI (XLR): Provides a balanced output for connecting directly to a mixing console or audio interface.
5. Configuración
Follow these steps to set up your Marshall SC20C ampmás duradero:
- Colocación: Coloque el amplifier on a stable, level surface, ensuring adequate ventilation around the unit. Avoid placing it near heat sources or in direct sunlight.
- Conexión de energía: Asegúrese de que amplifier's power switch is in the OFF position and the standby switch is in the STANDBY position. Connect the supplied power cable to the AC Power Input on the rear panel and then to a grounded electrical outlet.
- Conexión del instrumento: Connect your guitar to the Input Jack on the front panel using a high-quality instrument cable.
- Altavoz externo (opcional): If using an external speaker cabinet, ensure the internal speaker is disconnected (if applicable and specified in the manual, or ensure correct impedance matching if both are used). Connect the external speaker to the appropriate Speaker Output on the rear panel, matching the impedance. Always ensure a speaker load is connected before powering on.
- Bucle de efectos (opcional): If using external effects, connect the "Send" of the amplifier to the input of your first effect pedal, and the output of your last effect pedal to the "Return" of the ampmás duradero.
6. Instrucciones de funcionamiento
Operating your SC20C amplifier involves a specific power-up and power-down sequence to protect the tubes and ensure longevity.
6.1 Encendido
- Ensure all volume controls (Preamp Volume, Master Volume) are set to their minimum (zero) positions.
- Ensure the Standby switch is in the STANDBY position.
- Flip the Power switch to the ON position. The power indicator light will illuminate.
- Permitir el amplifier to warm up for at least 30-60 seconds. This allows the tubes to reach their operating temperature.
- After the warm-up period, flip the Standby switch to the PLAY position.
- Slowly increase the Master Volume and Preamp Volume to your desired levels.
6.2 Apagado
- Reduce all volume controls (Preamp Volume, Master Volume) to their minimum (zero) positions.
- Flip the Standby switch to the STANDBY position.
- Permitir el amplifier to cool down for a few seconds.
- Flip the Power switch to the OFF position. The power indicator light will extinguish.
- Unplug the power cable from the wall outlet if the ampEl amplificador no se utilizará durante un período prolongado.
6.3 Modelado del tono
Experiment with the Preamp Volume, Master Volume, and EQ controls to achieve your desired sound. The Preamp Volume controls the amount of distortion, while the Master Volume controls the overall loudness. The Treble, Middle, and Bass controls allow you to sculpt the frequency response. The Presence control adds brightness and cut to your tone.
The Output Select switch allows you to choose between 20-watt and 5-watt operation. The 5-watt mode will allow the power tubes to saturate and compress at lower overall volumes, which can be ideal for practice or recording where full stage volume is not required.
7. Mantenimiento
Un mantenimiento adecuado garantizará la longevidad y el rendimiento óptimo de su ampmás duradero.
- Limpieza: Desconectar el amplifier from power before cleaning. Use a soft, dry cloth to wipe down the exterior. Do not use liquid cleaners or abrasive materials.
- Cuidado del tubo: Vacuum tubes have a finite lifespan and will eventually need replacement. Signs of worn tubes include reduced output, loss of tone, excessive noise, or microphonic feedback. Tube replacement should ideally be performed by a qualified technician. If replacing tubes yourself, ensure the amplifier is unplugged and allowed to cool completely, and handle tubes carefully.
- Ventilación: Asegúrese de que ampLas aberturas de ventilación del ventilador están libres de obstrucciones en todo momento para evitar el sobrecalentamiento.
- Almacenamiento: Cuando no esté en uso, guarde el amplifier in a dry, temperate environment, away from extreme temperatures or humidity.
8. Solución de problemas
Si tiene problemas con su amplifier, consulte los siguientes problemas y soluciones comunes:
| Problema | Posible causa | Solución |
|---|---|---|
| Sin sonido |
|
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| Sonido débil o distorsionado |
|
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| Zumbido o ruido excesivo |
|
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If the problem persists after attempting these solutions, please contact Marshall customer support or a qualified service technician.
9. Especificaciones
| Característica | Detalle |
|---|---|
| Nombre del modelo | SC20C Studio Classic |
| Amptipo de vida | Tubo |
| Salida Wattage | 20W / 5W (conmutable) |
| Tamaño del altavoz | 10 pulgadas |
| Número de bandas (EQ) | 3 (Treble, Middle, Bass) + Presence |
| Output Channel Quantity | 1 |
| Fuente de poder | Eléctrico con cable |
| Dispositivos compatibles | Guitarra |
| Tipo de conector | XLR (DI Out), 6.35mm Jack (Input, FX Loop, Speaker Outs) |
| Material | Metal (Chassis), Wood (Cabinet) |
| Color | Negro |
| Peso del artículo | 20 libras |
| Número de modelo | M-SC20C-U |
| ASIN | B07N2LR2DD |
10. Garantía y soporte
Marshall products are manufactured to the highest standards and come with a limited warranty. For specific warranty terms and conditions applicable to your region, please refer to the warranty card included with your product or visit the official Marshall Amplificacion websitio.
For technical support, service, or replacement parts, please contact your authorized Marshall dealer or visit the Marshall Amplification support page online. When contacting support, please have your amplifier's model number (SC20C) and serial number ready.
Marshall oficial Websitio: www.marshall.com