Klipsch SUB-120

Klipsch Synergy Black Label Sub-120 Subwoofer Instruction Manual

1. Introducción

This manual provides essential information for the proper installation, operation, and maintenance of your Klipsch Synergy Black Label Sub-120 front-firing 12” subwoofer. Designed to deliver powerful bass, this subwoofer features 200 watts of continuous power and 400 watts of dynamic power, driven by an all-digital amplifier for accurate sound reproduction. It is compatible with most AV receivers, enhancing any home theater setup with deep, thundering bass.

Klipsch Synergy Black Label Sub-120 Subwoofer, front view with copper cone visible

Figure 1: Klipsch Synergy Black Label Sub-120 Subwoofer, showcasing its front-firing design and distinctive copper cone.

Klipsch Synergy Black Label Sub-120 Subwoofer with grille attached

Figure 2: Klipsch Synergy Black Label Sub-120 Subwoofer with its strong, flexible, and removable grille in place.

2. Información importante de seguridad

Please read all safety instructions before operating this product. Keep this manual for future reference. Adhere to all warnings on the product and in the operating instructions.

  • Fuente de energía: Only connect the subwoofer to a power supply of the type described in the operating instructions or as marked on the appliance.
  • Ventilación: Asegúrese de que haya una ventilación adecuada. No obstruya ninguna abertura de ventilación. Instale el producto siguiendo 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.
  • Agua y humedad: No utilice este aparato cerca del agua o en entornos excesivamente húmedos.
  • Limpieza: Limpiar únicamente con un paño seco.
  • Servicio: No intente reparar este producto usted mismo. Refiera todo el servicio a personal de servicio calificado.

3. ¿Qué hay en la caja?

Al desembalar, verifique que estén incluidos todos los siguientes elementos:

  • Klipsch Synergy Black Label Sub-120 Subwoofer
  • Cable de alimentación
  • Manual de instrucciones (este documento)

Note: Connection wires (e.g., RCA cables) are not included and must be purchased separately.

4. Configuración

4.1 Colocación del subwoofer

For optimal performance and bass response, it is recommended to place your Klipsch Sub-120 subwoofer in a corner of the room. Corner placement utilizes the room's acoustics to enhance bass output and provide a more immersive audio experience.

4.2 Conexiones

The Klipsch Sub-120 offers flexible connection options to integrate with almost any AV receiver or stereo system.

  • LFE (Low-Frequency Effects) Input: For receivers with a dedicated subwoofer output (LFE or SUB OUT), connect a single RCA cable from the receiver's subwoofer output to the LFE input on the subwoofer. This is the recommended connection for home theater systems.
  • Line In (Stereo RCA Inputs): If your receiver does not have an LFE output, connect stereo RCA cables from your receiver's pre-out (left and right) to the corresponding Line In (L/R) inputs on the subwoofer.
Close-up of the Klipsch Sub-120 back panel showing Line In and LFE inputs

Figura 3: detallada view of the Line In and LFE input connections on the subwoofer's rear panel.

4.3 Conexión de alimentación

Once audio connections are made, connect the provided power cord to the subwoofer's power input and then to a suitable wall outlet (100-240V, 50/60Hz 2A).

5. Funcionamiento del subwoofer

The Klipsch Sub-120 features several controls on its rear panel to fine-tune its performance to your listening environment and preferences.

Klipsch Sub-120 back panel showing all controls and connections

Figure 4: Rear panel of the Klipsch Sub-120, illustrating the location of all controls and inputs.

5.1 controles sobreview

  • GAIN (Volume) Control: Ajusta el nivel de salida general del subwoofer. Comienza con un ajuste bajo y auméntalo gradualmente hasta que los graves se integren a la perfección con los altavoces principales.
  • LOW-PASS (Crossover) Control: This knob sets the upper frequency limit for the subwoofer. Frequencies above this setting will not be reproduced by the subwoofer. Adjust this to match the low-frequency capabilities of your main speakers. A common starting point is 80Hz, but it can be adjusted between 40Hz and 120Hz.
  • Interruptor de FASE (0°/180°): This switch adjusts the phase of the subwoofer's output relative to your main speakers. Experiment with both settings to find the one that provides the most impactful and coherent bass response in your listening position.
  • ON/AUTO/OFF Switch:
    • EN: El subwoofer permanece encendido continuamente.
    • COCHE: The subwoofer automatically turns on when an audio signal is detected and enters standby mode after a period of inactivity.
    • OFF: El subwoofer está apagado.

6. Mantenimiento

To ensure the longevity and optimal performance of your Klipsch Sub-120 subwoofer, follow these simple maintenance guidelines:

  • Limpieza: Use a dry, soft cloth to wipe down the cabinet. Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the finish.
  • Cuidado de la parrilla: The subwoofer features a removable grille. If cleaning is necessary, gently remove the grille and use a soft brush or vacuum cleaner with a brush attachment to remove dust.
  • Ventilación: Compruebe periódicamente que las aberturas de ventilación estén libres de polvo y residuos para evitar el sobrecalentamiento.
  • Almacenamiento: Si va a almacenar el subwoofer durante un período prolongado, desconéctelo de la alimentación y guárdelo en un lugar fresco y seco, preferiblemente en su embalaje original.

7. Solución de problemas

If you encounter issues with your Klipsch Sub-120 subwoofer, refer to the following common problems and solutions:

ProblemaPosible causaSolución
No hay sonido del subwoofer
  • Cable de alimentación no conectado o toma de corriente no activa.
  • Subwoofer is in OFF mode or AUTO mode without signal.
  • Cable de audio no conectado o defectuoso.
  • Receiver's subwoofer output is disabled or volume is too low.
  • Check power connections and wall outlet.
  • Set ON/AUTO/OFF switch to ON or ensure audio signal is present for AUTO mode.
  • Verifique las conexiones del cable de audio; pruebe con un cable diferente.
  • Verifique la configuración del receptor para la salida y el volumen del subwoofer.
Graves distorsionados o poco claros
  • GAIN (volume) set too high.
  • LOW-PASS (crossover) set incorrectly.
  • Configuración de fase incorrecta.
  • Subwoofer placement issues.
  • Reduce the GAIN control on the subwoofer.
  • Adjust the LOW-PASS control to blend with main speakers.
  • Toggle the PHASE switch (0°/180°) to find the best sound.
  • Experiment with different subwoofer placements.
Subwoofer Not Turning On Automatically
  • ON/AUTO/OFF switch not set to AUTO.
  • Input signal too low to trigger auto-on.
  • Ensure the switch is set to AUTO.
  • Increase the output level from your receiver's subwoofer output.

8. Especificaciones

Detailed technical specifications for the Klipsch Synergy Black Label Sub-120 Subwoofer:

CaracterísticaDetalle
Nombre del modeloSub-120
Tipo de altavozAltavoz de subgraves
Diámetro del subwoofer12 pulgadas
Tipo de altavoz de gravesSpun copper front-firing Cerametallic woofers
Potencia continua200 vatios
Poder dinámico400 vatios
Amptipo de vidaDigital Ampmás vivaz
Respuesta de frecuenciaUp to 20 KHz (adjustable via Low-Pass filter)
Tecnología de conectividadWired (RCA Line In/LFE)
Método de controlManual (Gain, Low-Pass, Phase, Power)
Dimensiones del producto (Pr. x An. x Al.)19.25" x 14" x 16"
Peso del artículo36.4 libras
ColorNegro
MaterialWood cabinet, Copper woofer
Fuente de poderEléctrico con cable
Usos recomendadosHome Theater, Televisions, Gaming Consoles, Streaming Devices
Diagram showing the dimensions of the Klipsch Sub-120 Subwoofer: 16 inches H, 14 inches W, 19.25 inches D

Figure 5: Dimensions of the Klipsch Synergy Black Label Sub-120 Subwoofer.

9. Garantía y soporte

9.1 Información de garantía

The Klipsch Synergy Black Label Sub-120 Subwoofer comes with a Garantía limitada. For specific terms, conditions, and duration of the warranty, please refer to the warranty card included with your product or visit the official Klipsch websitio.

9.2 Atención al cliente

For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact Klipsch Customer Support. Contact information can typically be found on the Klipsch official websitio o en el embalaje del producto.

Recursos en línea: Visit the official Klipsch webSitio para preguntas frecuentes, registro de productos y recursos de soporte adicionales.

© 2026 Klipsch. Todos los derechos reservados.

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