LD Systems SUB 88 A - Active Subwoofer 2 x 8" User Manual

1. Introdución

The LD Systems SUB88A active subwoofer features two 8" loudspeakers and delivers 600 W Peak power. The SUB88A is the active version of the SUB88, one of our most popular subwoofers. It is equipped with a 600 Watt (peak) mono amplification module that offers excellent sound and dynamic characteristics. This subwoofer is the ideal partner for our SAT62A active loudspeakers, our SAT42/242/62 passive loudspeakers in combination with an external amplifier (like DJ200), or for all types of satellites if you wish to enrich the sound with deep and powerful bass.

Figura 1: Fronte e lateral view of the LD Systems SUB 88 A Active Subwoofer.

2. Instrucións de seguridade

Lea atentamente estas instrucións de seguridade antes de operar o dispositivo. Garde este manual para futuras consultas.

• Fonte de enerxía: Connect the device only to a power supply of the type described in this manual or marked on the device.
• Ventilación: Asegúrese de que haxa unha ventilación axeitada. Non bloquee ningunha das aberturas de ventilación.
• Auga e humidade: Do not expose the device to rain or moisture. Do not place objects filled with liquids, such as vases, on the device.
• Calor: Non coloque o dispositivo preto de fontes de calor como radiadores, rexistros de calor, cociñas ou outros aparellos (incluíndo amplificadores) que producen calor.
• Limpeza: Limpar só cun pano seco.
• Servizo: Non intente reparar este produto por si mesmo xa que abrir ou quitar as tapas pode exporse a perigosos volúmenestage ou outros perigos. Encargue toda a reparación a persoal de servizo cualificado.
• Cables: Protexa o cable de alimentación para evitar que se pise ou se pinche, especialmente nos enchufes, tomas de corrente e no punto de saída do aparello.

3. Contido do paquete

Comprobe que todos os artigos estean presentes e en bo estado ao desembalar.

• LD Systems SUB 88 A Active Subwoofer
• Manual de instrucións

4. Produto rematadoview

Familiarize yourself with the various components and controls of your SUB 88 A subwoofer.

Figura 2: Fronte view of the subwoofer, showing the bass reflex port.

Figure 3: Rear panel of the subwoofer, displaying input/output connections and controls.

Imaxe 4: Primeiro plano view of the rear panel controls, including SUB LEVEL, SUB CROSSOVER, SUB PHASE, and input/output ports.

Rear Panel Controls and Connections:

• Interruptor POWER: Activa ou desactiva o subwoofer.
• Entrada AC: Conecta o cable de alimentación.
• Portafusibles: Contén o fusible principal para protección.
• INPUT (XLR/TRS Combo Jack): Main audio input for connecting to a mixer or audio interface.
• SUB LEVEL Knob: Adjusts the overall output volume of the subwoofer.
• SUB CROSSOVER Knob (80 Hz - 200 Hz): Sets the upper frequency limit for the subwoofer. Frequencies above this setting will be sent to connected satellite speakers (if applicable).
• SUB PHASE Switch (0°/180°): Adjusts the phase of the subwoofer output to match the phase of your main speakers, preventing phase cancellation.
• LED LÍMITE: Illuminates when the internal limiter is active, indicating that the signal is too high.
• LED DE SINAL: Ilumínase cando hai un sinal de son presente.
• LED POWER: Acende cando a unidade está acendida.

5. Configuración

Follow these steps to properly set up your LD Systems SUB 88 A subwoofer.

1. Colocación: Position the subwoofer on a stable, flat surface. For optimal bass response, consider placing it in a corner or near a wall. Avoid blocking the bass reflex port.
2. Conexión de alimentación: Ensure the POWER switch is in the OFF position. Connect the supplied power cable to the AC Input on the rear panel and then to a suitable power outlet.
3. Conexión de audio:
   • Connect the audio output from your mixer, audio interface, or pre-amplifier to the INPUT (XLR/TRS Combo Jack) on the subwoofer's rear panel using a balanced XLR or TRS cable.
   • If connecting satellite speakers, ensure they are connected to the appropriate outputs on your mixer/interface, or if your setup allows, route them through the subwoofer's high-pass outputs (if available, though not explicitly listed for this model, typical for subwoofers).
4. Configuración inicial:
   • Establece o SUB NIVEL knob to its minimum (MIN) position.
   • Establece o SUB CROSSOVER knob to an initial setting, typically around 100 Hz for general use. Adjust later for optimal sound.
   • Establece o SUBFASE switch to 0°. You may need to adjust this later during calibration.

6. En funcionamento

Instructions for operating your LD Systems SUB 88 A subwoofer.

1. Encendido: Once all connections are made, switch the POWER button to the ON position. The POWER LED should illuminate.
2. Axuste de volume: Start playing audio through your system. Slowly increase the SUB NIVEL knob until the desired bass level is achieved. Ensure the LIMIT LED does not illuminate frequently, as this indicates signal clipping.
3. Axuste de cruce: Axustar o SUB CROSSOVER knob to blend the subwoofer's output seamlessly with your main speakers. A lower setting (e.g., 80 Hz) is suitable for larger main speakers, while a higher setting (e.g., 120 Hz or more) may be needed for smaller satellite speakers. Experiment to find the best balance.
4. Axuste de fase: While playing music with strong bass, toggle the SUBFASE switch between 0° and 180°. Choose the setting that produces the most impactful and defined bass. This compensates for acoustic phase differences between the subwoofer and main speakers due to their placement.
5. Seguimento: Pay attention to the SIGNAL and LIMIT LEDs. The SIGNAL LED confirms audio input. If the LIMIT LED flashes frequently or stays lit, reduce the input signal level from your source or decrease the SUB LEVEL to prevent distortion and potential damage.

7. Mantemento

Proper care and maintenance will ensure the longevity of your subwoofer.

• Limpeza: Disconnect the power before cleaning. Use a soft, dry cloth to wipe the exterior surfaces. Do not use liquid cleaners, aerosols, or abrasive chemicals.
• Ventilación: Ensure that the ventilation openings are free from dust and debris. Periodically clean them with a soft brush or vacuum cleaner.
• Almacenamento: If storing the subwoofer for an extended period, keep it in a cool, dry place, away from direct sunlight and extreme temperatures.
• Substitución de fusibles: If the unit does not power on, check the fuse in the FUSE holder. Replace it only with a fuse of the same type and rating as specified on the unit. Refer to qualified service personnel if unsure.

8 Solución de problemas

Consulta esta sección para ver os problemas comúns e as súas solucións.

9. Especificacións

10. Garantía e soporte

This product comes with a limited warranty. For detailed warranty information and technical support, please refer to the official LD Systems websitio web ou póñase en contacto co seu distribuidor local. Garde o comprobante de compra para reclamacións de garantía.

Para obter máis asistencia, visite o LD Systems Store on Amazon.