B&C 5FG44 5″ Professional Woofer LF Driver
The B&C 5FG44 is a high-performance 5-inch professional woofer designed to deliver exceptional low-frequency and mid-bass reproduction from compact loudspeaker systems. Engineered for professional audio applications where space is limited but performance remains critical, the B&C 5FG44 combines a robust ferrite motor structure, large 44 mm voice coil, and optimized moving assembly to provide outstanding efficiency, power handling, and reliability.
Designed specifically for compact vented enclosures, portable PA systems, stage monitors, and installed sound reinforcement applications, the B&C 5FG44 offers an impressive balance of output capability and bandwidth. With a frequency response extending from 63 Hz to 6000 Hz, the driver is capable of delivering clean bass reproduction while maintaining excellent midrange articulation, making it suitable for a wide variety of professional loudspeaker designs.
The combination of a lightweight moving assembly, optimized magnetic circuit, and waterproof cone treatment ensures dependable operation in demanding environments. Whether used in compact two-way loudspeakers, distributed audio systems, or portable sound reinforcement solutions, the B&C 5FG44 delivers the performance and durability expected from a professional B&C transducer.
Key Features
- 100 W nominal power handling
- 200 W continuous program power handling
- 44 mm (1.7 inch) copper voice coil
- 92 dB sensitivity
- 63 Hz – 6000 Hz frequency response
- Ferrite magnet motor structure
- Kapton voice coil former
- WP waterproof front cone treatment
- Compact 5-inch professional woofer design
- Optimized for vented enclosure applications
- Excellent power-to-size ratio
- Reliable long-term professional performance
Ferrite Motor Design
At the heart of the B&C 5FG44 is a carefully engineered ferrite motor assembly designed to provide consistent magnetic performance and long-term reliability. The ferrite magnet structure delivers excellent magnetic stability while maintaining cost-effective performance for professional loudspeaker applications.
With a magnetic flux density of 1.1 Tesla, the motor system provides strong control over the moving assembly, helping to maintain low distortion and accurate cone movement throughout the driver’s operating range. The optimized magnetic circuit contributes to predictable acoustic performance and dependable operation under continuous professional use.
The motor structure incorporates a T-pole design, which assists in maintaining efficient magnetic coupling and contributes to the driver’s overall performance consistency.
Large 44 mm Voice Coil Assembly
A standout feature of the B&C 5FG44 is its large 44 mm copper voice coil, a substantial size for a driver in this category. The oversized voice coil increases thermal capacity and improves power handling, allowing the driver to manage demanding signal levels while maintaining reliable operation.
The voice coil is wound using high-quality copper wire on a Kapton former, providing an excellent balance of thermal stability, durability, and efficiency. Kapton formers are widely used in professional loudspeaker designs due to their ability to withstand elevated operating temperatures without compromising structural integrity.
The voice coil features a 9 mm winding depth operating within a 6 mm magnetic gap, helping maintain strong motor control while supporting the excursion capability required for compact low-frequency reproduction.
With 100 W nominal power handling and 200 W continuous program power handling, the B&C 5FG44 offers impressive performance for compact professional loudspeaker systems.
Cone and Suspension Design
The B&C 5FG44 utilizes an exponential cone profile, carefully optimized to provide smooth frequency response characteristics and efficient acoustic loading. This cone geometry contributes to the driver’s ability to deliver clean bass response while maintaining detailed midrange performance.
The suspension system incorporates a roll surround, providing controlled cone movement and helping maintain linear performance throughout the driver’s operating range. This surround design supports accurate transient reproduction and reliable long-term operation.
A single spider suspension system maintains proper voice coil alignment while providing the mechanical stability required for professional applications. The combination of the surround and spider assembly helps ensure predictable behaviour under demanding operating conditions.
To improve durability and environmental resistance, the cone features WP Waterproof Front Side treatment. This protective coating helps safeguard the cone against moisture and humidity, making the driver suitable for both portable and installed sound reinforcement applications.
Compact Enclosure Performance
One of the major strengths of the B&C 5FG44 is its ability to deliver impressive low-frequency performance from compact enclosure volumes.
B&C recommends a 5 dm³ enclosure tuned to 70 Hz, allowing system designers to create compact loudspeaker systems without sacrificing useful bass extension. This makes the driver particularly attractive for portable PA systems, compact stage monitors, and space-conscious installation projects.
The driver’s low 63 Hz resonant frequency contributes to its ability to reproduce lower frequencies effectively despite its compact size. Combined with a well-controlled Qts of 0.27, the B&C 5FG44 is particularly well suited to vented enclosure alignments.
Its high EBP value of 210 Hz further confirms its suitability for bass reflex cabinet designs, enabling efficient low-frequency reproduction in appropriately tuned systems.
Technical Specifications
Nominal Diameter: 127 mm (5 in)
Nominal Impedance: 8 Ω
Minimum Impedance: 6.5 Ω
Nominal Power Handling: 100 W
Continuous Power Handling: 200 W
Sensitivity: 92 dB
Frequency Range: 63 Hz – 6000 Hz
Voice Coil Diameter: 44 mm (1.7 in)
Winding Material: Copper
Former Material: Kapton
Winding Depth: 9 mm (0.35 in)
Magnetic Gap Depth: 6 mm (0.25 in)
Flux Density: 1.1 T
Woofer Cone Treatment: WP Waterproof Front Side
Thiele-Small Parameters
Fs: 63 Hz
Re: 5.8 Ω
Qes: 0.30
Qms: 10
Qts: 0.27
Vas: 6.3 dm³ (0.22 ft³)
Sd: 95 cm² (14.7 in²)
η₀: 0.55 %
Xmax: 3 mm
Xvar: 5 mm
Mms: 12 g
Bl: 10 Tm
Le: 0.8 mH
EBP: 210 Hz
Design Features
Surround Shape: Roll
Cone Shape: Exponential
Magnet Material: Ferrite
Spider: Single
Pole Design: T-Pole
Woofer Cone Treatment: WP Waterproof Front Side
Recommended Enclosure: 5 dm³ (0.17 ft³)
Recommended Tuning: 70 Hz
Mounting Information
Overall Diameter: 155 mm (6.1 in)
Bolt Circle Diameter: 142 mm (5.6 in)
Baffle Cutout Diameter: 122 mm (4.8 in)
Depth: 77 mm (3.03 in)
Flange and Gasket Thickness: 9 mm (0.35 in)
Air Volume Occupied by Driver: 0.5 dm³ (0.02 ft³)
Net Weight: 1.6 kg (3.53 lb)
Shipping Units: 1 Piece
Shipping Weight: 1.8 kg (3.97 lb)
Shipping Box: 210 × 210 × 125 mm
Recone Kit: RCK005FG448
Applications
The B&C 5FG44 is engineered for professional audio applications where compact dimensions, dependable power handling, and efficient low-frequency reproduction are required. Its combination of a large 44 mm voice coil, ferrite motor assembly, and optimized bass reflex alignment makes it an excellent choice for compact two-way loudspeakers, portable PA systems, stage monitoring applications, distributed audio systems, and installed sound reinforcement projects.
The driver’s ability to deliver strong performance from a recommended enclosure volume of just 5 dm³ provides system designers with significant flexibility when developing compact loudspeaker solutions. Its waterproof cone treatment further enhances durability, making it suitable for both portable and permanent installations.
For designers seeking a compact professional woofer that delivers reliable performance, efficient bass reproduction, and proven B&C engineering, the B&C 5FG44 represents an outstanding solution for modern loudspeaker applications.
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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.
