B&C 8CLA64 8″ Professional Woofer LF Driver
The B&C 8CLA64 is a professional 8-inch woofer LF driver engineered for compact high-output loudspeaker systems requiring lightweight construction, efficient thermal management, and controlled low-frequency reproduction. Built around a high-energy neodymium motor assembly and advanced cooling architecture, the B&C 8CLA64 has been developed for professional applications where high power density and compact enclosure integration are essential.
Designed for portable PA systems, stage monitors, compact two-way loudspeakers, and installed sound reinforcement systems, the B&C 8CLA64 combines lightweight construction with high excursion capability and optimized cooling performance. Its balanced parameter set allows system designers to achieve strong output performance from compact cabinet volumes while maintaining reduced overall system weight.
Key Features
- 350 W nominal power handling
- 700 W continuous program power capacity
- 64 mm (2.5 inch) copper voice coil
- 95 dB sensitivity
- 65 Hz – 4000 Hz frequency response
- Lightweight neodymium inside slug motor assembly
- Copper shorting cap for reduced inductance modulation
- Vented motor structure for improved thermal stability
- Waterproof cone treatment for improved environmental durability
- Optimized for compact vented enclosure applications
Lightweight Neodymium Motor Structure
The B&C 8CLA64 utilizes a lightweight neodymium inside slug motor structure, allowing the driver to maintain strong magnetic performance while minimizing overall weight. This design approach makes the driver particularly suitable for portable loudspeaker systems where reducing cabinet mass remains an important design consideration.
The motor assembly incorporates a copper shorting cap, designed to minimize inductance variation and improve upper-frequency behavior. Reducing inductance modulation contributes to smoother frequency response characteristics and improved crossover integration in compact multi-way loudspeaker systems.
The motor generates approximately 1.2 T flux density, providing strong control over cone movement while supporting efficient energy transfer throughout the operating bandwidth. Combined with the optimized magnetic structure, this contributes to the driver’s controlled transient behavior and high efficiency characteristics.
Voice Coil Construction and Thermal Performance
At the center of the B&C 8CLA64 is a 64 mm copper voice coil wound on a glass fibre former. The larger voice coil diameter improves thermal capacity and allows the driver to maintain stable operation during continuous high-output conditions.
The driver supports 350 W nominal power handling and 700 W continuous program power, making it suitable for demanding professional applications requiring sustained output capability. Its advanced cooling architecture increases airflow through the motor assembly, helping minimize thermal compression during prolonged operation.
The combination of efficient cooling, optimized winding geometry, and strong motor control contributes to improved long-term reliability and consistent performance under demanding operating conditions.
Cone Geometry and Suspension Design
The B&C 8CLA64 utilizes an exponential cone profile combined with a double-roll surround geometry, providing controlled cone movement while maintaining excursion capability suitable for professional low-frequency applications.
A single spider suspension system provides mechanical stability and helps maintain predictable cone behavior during higher excursion operation. This suspension design contributes to controlled movement characteristics while preserving efficiency throughout the operating bandwidth.
The cone assembly incorporates waterproof treatment, improving resistance to humidity and environmental exposure in both portable and installed professional audio environments.
Compact Enclosure Integration
The B&C 8CLA64 has been optimized for compact enclosure designs where high output capability and reduced cabinet size are priorities.
Its combination of moderate resonance frequency, strong motor control, and controlled excursion allows designers to achieve useful low-frequency extension from compact bass reflex cabinets while maintaining manageable enclosure dimensions.
Typical applications include:
- Compact two-way loudspeaker systems
- Professional stage monitors
- Portable PA systems
- Compact bass reflex cabinets
- Installed sound reinforcement systems
- Lightweight professional loudspeaker designs
Technical Specifications
Nominal Diameter: 200 mm (8 in)
Nominal Impedance: 8 Ω
Minimum Impedance: 6.2 Ω
Nominal Power Handling: 350 W
Continuous Program Power: 700 W
Sensitivity: 95 dB
Frequency Range: 65 Hz – 4000 Hz
Voice Coil Diameter: 64 mm (2.5 in)
Winding Material: Copper
Former Material: Glass Fibre
Winding Depth: 18 mm
Magnetic Gap Depth: 10 mm
Flux Density: 1.2 T
Magnet Material: Neodymium Inside Slug
Cone Shape: Exponential
Surround Shape: Double Roll
Spider Design: Single
Cone Treatment: Waterproof Treatment
Thiele-Small Parameters
Fs: 66 Hz
Re: 5.2 Ω
Qes: 0.31
Qms: 6.1
Qts: 0.29
Vas: 14 dm³
Sd: 220 cm²
η₀: 1.2 %
Xmax: ±7 mm
Mms: 31 g
BL Factor: 16.5 Tm
Le: 0.6 mH
EBP: 213 Hz
Mounting Information
Overall Diameter: 225 mm
Bolt Circle Diameter: 210 mm
Baffle Cutout Diameter: 187 mm
Depth: 96 mm
Flange and Gasket Thickness: 11 mm
Air Volume Occupied by Driver: 1.2 dm³
Net Weight: 1.95 kg
Shipping Weight: 2.4 kg
Shipping Box: 255 × 255 × 150 mm
Recone Kit: RCK008CLA648
Applications
The B&C 8CLA64 is engineered for professional low-frequency applications requiring compact loading, lightweight construction, and dependable output capability. Its neodymium motor structure, advanced cooling architecture, and high power handling make it suitable for portable PA systems, stage monitors, compact loudspeaker systems, and professional installed audio applications.
For system designers requiring a lightweight professional woofer optimized for compact enclosure designs and high power density applications, the B&C 8CLA64 delivers an effective balance of portability, efficiency, and professional-grade performance.
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About B&C Speakers S.r.L.
B&C Speakers products are built in Bagno a Ripoli (Florence), Italy., ensuring high quality products to suite your speaker building requirements. Their 10,500 square meter facility incorporates highly sophisticated automation and quality control. Over the years they become one of the world leaders in the Professional Audio market, a brand recognized everywhere as a premium product that offers excellent value to the consumer.
