B&C 6PS38 6.5″ Professional Woofer LF Driver
The B&C 6PS38 is a professional 6.5-inch woofer LF driver engineered for compact loudspeaker systems requiring strong midbass performance, high efficiency, and reliable thermal stability. Designed around a ferrite motor assembly and lightweight moving system, the B&C 6PS38 delivers professional output capability while maintaining compact dimensions for portable and installed sound reinforcement applications. The driver has been optimized for applications where enclosure space is limited but output performance remains a priority.
Developed for compact two-way loudspeaker systems, stage monitors, portable PA cabinets, and professional installed audio systems, the B&C 6PS38 combines controlled excursion capability with efficient motor performance. Its optimized suspension geometry and compact loading characteristics make it suitable for smaller bass reflex designs requiring strong midbass reproduction and reliable long-term operation.
Key Features
- 150 W nominal power handling
- 300 W continuous program power capacity
- 38 mm (1.5 inch) aluminium voice coil
- 94 dB sensitivity
- 75 Hz – 5000 Hz frequency response
- Ferrite ring magnet assembly
- WP waterproof front cone treatment
- Compact enclosure optimization
- Roll surround geometry
- Vented motor structure for improved thermal stability
Ferrite Motor Structure and Magnetic Performance
The B&C 6PS38 utilizes a ferrite ring magnet motor structure designed to provide stable magnetic performance and strong cone control while maintaining compact physical dimensions. The motor assembly has been optimized for professional sound reinforcement applications where efficiency and reliability remain critical requirements.
With a measured 1.4 T flux density, the magnetic system provides effective control over cone movement while supporting efficient acoustic output. Combined with a 10.8 Tm BL factor, the motor delivers controlled transient performance and predictable behavior across the intended operating bandwidth.
Its optimized magnetic structure contributes to stable output performance during continuous operation while supporting compact enclosure implementations commonly used in professional loudspeaker systems.
Voice Coil Construction and Thermal Performance
At the center of the B&C 6PS38 is a 38 mm aluminium voice coil wound on a glass fibre former. The aluminium winding material helps reduce moving mass while maintaining thermal stability during prolonged operation. This construction supports faster transient response and improved efficiency.
The driver supports 150 W nominal power handling and 300 W continuous program power handling, making it suitable for professional applications requiring dependable output capability. The voice coil assembly has been optimized for continuous-duty applications where thermal stability and consistent performance are essential.
Its vented motor architecture improves airflow around the coil assembly, helping reduce heat accumulation and minimizing power compression during sustained high-output use.
Cone Geometry and Suspension Design
The B&C 6PS38 utilizes a radial cone profile combined with a roll surround geometry, providing controlled movement characteristics while maintaining the excursion capability required for compact low-frequency applications. The suspension system has been optimized for efficient output and stable cone behavior.
A single spider suspension system maintains mechanical stability while preserving efficiency throughout the operating bandwidth. This configuration contributes to predictable performance and controlled transient response during demanding use.
The cone assembly incorporates WP waterproof front-side treatment, improving resistance against humidity and environmental exposure in both portable and installed applications. This treatment improves durability while maintaining long-term reliability.
Compact Enclosure Integration
One of the strengths of the B&C 6PS38 is its ability to perform effectively in compact enclosure designs.
The manufacturer recommends a 9 dm³ enclosure volume with an 80 Hz tuning frequency, allowing system designers to achieve useful low-frequency extension from small bass reflex cabinets while maintaining manageable enclosure dimensions. These loading characteristics make the driver particularly suitable for portable sound systems and compact professional loudspeakers.
Typical applications include:
- Compact two-way loudspeaker systems
- Portable PA systems
- Stage monitor systems
- Compact bass reflex cabinets
- Installed sound reinforcement systems
- Professional midbass applications
Technical Specifications
Nominal Diameter: 170 mm (6.69 in)
Nominal Impedance: 8 Ω
Minimum Impedance: 6.6 Ω
Nominal Power Handling: 150 W
Continuous Program Power: 300 W
Sensitivity: 94 dB
Frequency Range: 75 Hz – 5000 Hz
Voice Coil Diameter: 38 mm (1.5 in)
Winding Material: Aluminium
Former Material: Glass Fibre
Winding Depth: 12 mm
Magnetic Gap Depth: 6 mm
Flux Density: 1.4 T
Magnet Material: Ferrite Ring
Cone Shape: Radial
Surround Shape: Roll
Spider Design: Single
Pole Design: Straight Pole
Cone Treatment: WP Waterproof Front Side
Recommended Enclosure: 9 dm³
Recommended Tuning: 80 Hz
Thiele-Small Parameters
Fs: 75 Hz
Re: 5.4 Ω
Qes: 0.31
Qms: 11.7
Qts: 0.30
Vas: 8.0 dm³
Sd: 132 cm²
η₀: 1.0 %
Xmax: ±6.0 mm
Xvar: ±7.5 mm
Mms: 14 g
BL Factor: 10.8 Tm
Le: 0.6 mH
EBP: 241 Hz
Mounting Information
Overall Diameter: 187 mm
Bolt Circle Diameter: 172 mm
Baffle Cutout Diameter: 145 mm
Depth: 82 mm
Flange and Gasket Thickness: 9 mm
Air Volume Occupied by Driver: 0.8 dm³
Net Weight: 2.35 kg
Shipping Weight: 2.55 kg
Shipping Box: 210 × 210 × 125 mm
Recone Kit: RCK06PS388
Applications
The B&C 6PS38 is engineered for professional low-frequency and midbass applications where compact loading, strong efficiency, and dependable thermal performance are priorities. Its ferrite motor structure, waterproof cone treatment, and compact enclosure compatibility make it particularly suitable for portable PA systems, stage monitors, compact loudspeaker systems, and installed sound reinforcement applications.
For system designers requiring a compact professional woofer optimized for small enclosures and efficient output performance, the B&C 6PS38 provides an effective balance of output capability, reliability, and installation flexibility.
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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.
