Introdución
The JBL Professional CSS8008 is an 8-inch round ceiling speaker designed for commercial applications requiring high-quality paging and background music. This speaker features a 5-watt multi-tap transformer, offering compatibility with 100V, 70V, and 25V distributed audio lines. Its high sensitivity ensures clear sound reproduction even at lower power settings. This manual provides essential information for the proper installation, operation, and maintenance of your CSS8008 speaker.
Configuración e instalación
The CSS8008 speaker comes pre-assembled with the driver, transformer, and grille for simplified installation. Ensure all power to the audio system is disconnected before beginning installation.
Figura 1: Fronte view of the JBL CSS8008 ceiling speaker.
Montaxe
- Diámetro de corte: An 8.5-inch (216 mm) diameter cutout is required for open-back installation.
- Bolt Mounting: The speaker utilizes a 4-point bolt mounting circle with an 11.25-inch (286 mm) diameter. Mounting hardware is included.
- Optional Back Cans: For enhanced performance, code compliance, and sound control, optional matching back cans are available. The CSS-BB8 back can is recommended. Other compatible back cans include MTC-81BB8 (0.26 cu ft), MTC-200BB6 (0.5 cu ft), and MTC-300BB8 (1.0 cu ft). Larger back cans generally allow for deeper bass response. Back cans can be installed, wired, and inspected prior to speaker installation.
Figura 2: Traseira view of the speaker with transformer and wiring.
Cableado
The CSS8008 features a 5-watt multi-tap transformer for use in 100V, 70V, and 25V distributed audio systems. Connect the appropriate wires from your amplifier to the speaker's transformer leads based on your system's voltage requirements. Refer to your amplifier's manual for specific wiring diagrams for distributed audio systems.
Figure 3: Close-up of the multi-tap transformer and wiring.
Operación
The JBL CSS8008 is designed for optimal performance in background music and paging applications. Its high sensitivity of 96 dB ensures that maximum sound levels can be achieved even with minimal amplifier power, making it efficient for various commercial environments.
- Manexo de potencia: The speaker has a continuous power handling capacity of 15 watts. Ensure your amplifier's output does not exceed this rating to prevent damage.
- Cobertura: The CSS8008 provides a wide 120-degree conical coverage pattern, ensuring even sound distribution across the listening area.
- Aplicacións: This speaker is suitable for a variety of commercial spaces, including retail stores, restaurants, offices, schools, and other facilities where clear and consistent audio is required.
Mantemento
The JBL CSS8008 ceiling speaker requires minimal maintenance to ensure long-term performance.
- Limpeza: Periodically wipe the speaker grille with a soft, dry cloth to remove dust. Avoid using harsh chemicals or abrasive cleaners.
- Inspección: Occasionally inspect the speaker for any visible damage or loose connections. If any issues are found, consult a qualified technician.
- Pintura: The grille is paintable, allowing for color-matching to your ceiling. Ensure paint is applied thinly and evenly to avoid clogging the grille perforations, which could affect sound quality.
Resolución de problemas
If you encounter issues with your JBL CSS8008 speaker, refer to the following common troubleshooting steps:
- Sen son:
- Verifique que o ampo lifier está acendido e funciona correctamente.
- Check all wiring connections between the amplifier and the speaker for secure contact.
- Ensure the correct transformer tap setting is selected for your distributed audio system voltage (100 V, 70 V ou 25 V).
- Son distorsionado:
- Reducir o amplifier's volume or gain to prevent overdriving the speaker.
- Comprobe as conexións de cableado soltas.
- Ensure the speaker is not physically obstructed.
- Ruído de zumbido:
- If a humming noise is present when using the transformer, verify all wiring and ground connections.
- Ensure proper shielding for audio cables.
- If transformer use is not critical for your application, consider connecting the speaker directly at 8 ohms (if supported by your amplifier) to see if the hum is eliminated.
Especificacións técnicas
| Característica | Especificación |
|---|---|
| Marca | JBL |
| Número de modelo | CSS8008 |
| Tipo de altofalante | No teito |
| Tipo de montaxe | Montaxe no teito |
| Diámetro do woofer | 8 polgadas (200 mm) |
| Diámetro do tweeter | 1 polgadas (25 mm) |
| Potencia de saída máxima do altofalante | 15 vatios |
| Rango de frecuencia (-10 dB) | 55 Hz – 16 kHz (Driver/Grille Assembly) |
| Frequency Range (-10 dB) with CSS-BB8 back-can | 100 Hz - 16 kHz |
| Sensibilidade (1W / 1m) | 96 dB |
| Impedancia | 8 ohmios |
| Grifos de transformadores | 100V, 70V, 25V (5-watt multi-tap) |
| Ángulo de cobertura | 120 graos cónicos |
| Tecnoloxía de conectividade | Con cable |
| Modo de saída de audio | Stereo (single speaker) |
| Material do recinto | Múltiples |
| Cor | Branco (pintable) |
| Dimensións do artigo (D x W x H) | 15 cm de profundidade x 15 cm de ancho x 4 cm de alto (aproximadamente) |
| Peso do elemento | 300 g |
| UPC | 050036903929 |
Información da garantía
This JBL Professional CSS8008 speaker is covered by a limited manufacturer's warranty. The warranty is valid only for products purchased from authorized JBL Professional North American dealers within the United States.
For complete details regarding the warranty terms, conditions, and registration process, please refer to the official JBL Professional websitio web ou póñase en contacto co seu distribuidor autorizado.
Soporte e Contacto
For technical assistance, product inquiries, or service, please contact your authorized JBL Professional dealer. You can also find additional resources, FAQs, and support information by visiting the official JBL Professional websitio.
Profesional JBL Websitio: www.jblpro.com