Description
The JBL 8330 (specifically the 8330Â model) is a highly regarded 3-way passive surround loudspeaker designed primarily for professional cinema applications and high-end foreground music systems. It’s a specialized product, distinct from typical home audio or studio monitors.
It’s known for its robust construction, precise sound dispersion, and approval for THX® installations, making it an industry standard in many cinemas worldwide.
Jbl 8330 Key Features & Specifications:
- Type: Passive 3-Way Cinema Surround Loudspeaker. This means it requires an external power amplifier.
- Drivers:
- LF (Low Frequency) Driver: 8-inch (200mm) low frequency transducer for smooth, extended bass.
- MF (Midrange) Transducer: 5-inch (130mm) midrange transducer for critical midrange clarity (vocals, dialogue).
- HF (High Frequency) Transducer: 1-inch (25mm) titanium-laminate dome tweeter.
- Power Handling:
- Continuous Pink Noise: 100 Watts
- Continuous Program Power: 200 Watts
- Peak Power: 400 Watts
- Frequency Range (-10 dB): 40 Hz – 20 kHz.
- Frequency Response (±3 dB): 70 Hz – 14 kHz.
- Sensitivity (1W, 1m): 91 dB SPL.
- Nominal Impedance: 8 ohms.
- Coverage Angle (-6 dB): 110° Horizontal x 105° Vertical (averaged). This wide, uniform dispersion is crucial for consistent sound across a large cinema space.
- Crossover Frequencies: 650 Hz, 3.1 kHz.
- High Frequency Contour: Features SMPTE/ISO2969 Curve X high-frequency de-emphasis, which is standard for cinema surround sound to prevent harshness in the high frequencies during film playback. It can also be switched to a flat response for foreground music applications.
- Cabinet Design:
- Special cabinet shape incorporates a 20° angled front baffle. This is designed to aim the sound downwards towards the audience when the speaker is mounted high on a wall.
- Lightweight, rigid molded enclosure made of textured black H.I.P.S. plastic.
- Mounting: Designed for convenient installation using JBL QuickMoun, Omnimount, or APC Multimount brackets. Input terminals are located on top of the cabinet for quick access.
- Dimensions (H x W x D): 457mm x 457mm x 260mm (18.0 in x 18.0 in x 10.2 in).
- Net Weight (each): 8.6 kg (19 lbs).
Applications:
The JBL 8330 is specifically designed and used in:
- Commercial Cinemas: As surround loudspeakers in large and small cinema halls.
- Screening Rooms: Professional post-production facilities and private screening rooms.
- Dubbing Stages: For film and TV audio mixing environments.
- Theaters and Auditoriums: As surround or specialized effect speakers.
- High-End Foreground Music Systems: In larger venues where a full-range, high-output passive speaker is needed.
