B&C 8PE21 8″ Professional Midrange Driver
The B&C 8PE21 is a professional 8-inch midrange driver engineered for applications requiring high sensitivity, excellent vocal clarity, and controlled mid-frequency reproduction. Designed around a ferrite motor structure and lightweight moving assembly, the B&C 8PE21 delivers strong efficiency and fast transient response for professional sound reinforcement systems.
Developed primarily for multi-way loudspeaker systems, stage monitoring, compact PA systems, and installed sound applications, the B&C 8PE21 combines strong output capability with compact integration flexibility. Its high sensitivity and optimized suspension design make it suitable for systems where vocal projection, articulation, and midrange definition remain critical performance requirements.
Key Features
- 200 W nominal power handling
- 400 W continuous program power handling
- 51 mm (2 inch) copper voice coil
- Ferrite magnet motor structure
- 98 dB sensitivity
- 90 Hz – 5000 Hz frequency response
- Triple-roll surround geometry
- Radial cone profile
- Single spider suspension design
- Lightweight moving assembly optimized for midrange reproduction
Ferrite Motor Design and Efficiency
The B&C 8PE21 utilizes a ferrite motor structure designed to provide strong magnetic force while maintaining long-term reliability in professional applications. Ferrite motor systems remain widely used in professional loudspeaker design due to their stability, thermal resilience, and cost-effective performance characteristics.
With a measured magnetic flux density of 1.25 T, the motor assembly provides strong control over cone movement while contributing to the driver’s impressive 98 dB sensitivity rating. High motor strength combined with low moving mass allows the driver to reproduce dynamic midrange information efficiently.
The straight pole design contributes to stable magnetic behavior throughout operation while supporting predictable integration into professional multi-way systems.
Voice Coil Construction and Thermal Performance
At the center of the B&C 8PE21 is a 51 mm copper voice coil wound on a Kapton former. This design provides strong thermal performance while maintaining low moving mass for improved responsiveness.
The driver supports 200 W nominal power handling and 400 W continuous program power, allowing it to maintain reliable operation under demanding professional conditions. The optimized coil geometry improves efficiency while maintaining stable mechanical control during continuous operation.
Its relatively lightweight 18 g moving mass contributes to faster transient response and improved detail reproduction, particularly in applications where speech intelligibility and midrange accuracy are priorities.
Cone Geometry and Suspension Design
The cone assembly of the B&C 8PE21 uses a radial cone profile combined with a triple-roll surround configuration. This design supports controlled movement while maintaining strong efficiency across the operating range.
A single spider suspension system helps maintain mechanical stability while preserving low moving mass. The simplified suspension geometry contributes to improved transient response and predictable cone behavior throughout operation.
Unlike many low-frequency focused drivers, the B&C 8PE21 does not utilize cone treatment. This helps maintain lower moving mass and supports faster response characteristics for dedicated midrange applications.
Midrange Performance and System Integration
The B&C 8PE21 is optimized for applications requiring strong midrange articulation and efficient power conversion.
With a usable frequency response extending from 90 Hz to 5000 Hz, the driver provides broad operating flexibility in multi-way systems. Its combination of high sensitivity and controlled response makes it suitable for systems prioritizing vocal projection and detailed instrument reproduction.
Typical applications include:
- Professional stage monitors
- Portable PA loudspeakers
- Multi-way sound reinforcement systems
- Installed audio systems
- Midrange sections in high-output speaker systems
- Speech reinforcement systems
Its compact dimensions also allow easier integration into smaller cabinet formats without sacrificing output capability.
Technical Specifications
Nominal Diameter: 200 mm (8 in)
Nominal Impedance: 8 Ω
Minimum Impedance: 7.2 Ω
Nominal Power Handling: 200 W
Continuous Program Power: 400 W
Sensitivity: 98 dB
Frequency Range: 90 Hz – 5000 Hz
Voice Coil Diameter: 51 mm (2 in)
Voice Coil Material: Copper
Former Material: Kapton
Winding Depth: 9 mm
Magnetic Gap Depth: 8 mm
Flux Density: 1.25 T
Magnet Material: Ferrite
Cone Shape: Radial
Surround Shape: Triple Roll
Spider Design: Single
Pole Design: Straight Pole
Cone Treatment: None
Thiele-Small Parameters
Fs: 87 Hz
Re: 5.6 Ω
Qes: 0.20
Qms: 3.8
Qts: 0.19
Vas: 13 dm³
Sd: 220 cm²
η₀: 4.1 %
Xmax: 2.5 mm
Xvar: 4.5 mm
Mms: 18 g
BL Factor: 16.6 Tm
Le: 0.5 mH
EBP: 435 Hz
Mounting Information
Overall Diameter: 225 mm
Bolt Circle Diameter: 210 mm
Baffle Cutout Diameter: 187 mm
Depth: 91 mm
Flange and Gasket Thickness: 11 mm
Driver Displacement Volume: 1.2 dm³
Net Weight: 4.25 kg
Shipping Weight: 4.7 kg
Recone Kit: RCK008PE218
Applications
The B&C 8PE21 is engineered for professional applications where efficiency, vocal clarity, and compact system integration are important. Its combination of high sensitivity, controlled cone behavior, and lightweight moving assembly makes it particularly effective for dedicated midrange duties in professional sound reinforcement systems.
For system designers requiring a compact high-efficiency midrange driver with strong projection and reliable performance, the B&C 8PE21 offers a proven solution optimized for demanding professional audio environments.
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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.
