B&C 6MDN44 6.5″ Professional Midrange LF Driver
The B&C 6MDN44 is a professional 6.5-inch midrange LF driver engineered for applications requiring high sensitivity, lightweight construction, and exceptional vocal and mid-frequency reproduction. Designed specifically as a dedicated midrange transducer, the B&C 6MDN44 combines a lightweight neodymium motor assembly with an optimized moving system to deliver fast transient response and controlled acoustic performance across an extended frequency range.
Developed for professional multi-way loudspeaker systems, compact line arrays, stage monitoring systems, and high-performance installed audio applications, the B&C 6MDN44 provides strong output capability while maintaining extremely compact dimensions and low weight. Its dedicated midrange design makes it particularly suitable for systems where vocal intelligibility, articulation, and mid-band efficiency are critical performance requirements.
Key Features
- 200 W nominal power handling
- 400 W continuous program power capacity
- 44 mm (1.7 inch) aluminium voice coil
- 96.5 dB sensitivity
- 150 Hz – 6000 Hz frequency response
- Lightweight neodymium ring motor assembly
- Aluminium demodulating ring for reduced distortion
- Ventilated voice coil gap for reduced power compression
- WP waterproof front cone treatment
- Dedicated professional midrange design
Lightweight Neodymium Motor Design
The B&C 6MDN44 utilizes a neodymium ring magnet structure, allowing the driver to maintain strong magnetic performance while minimizing overall mass. The lightweight motor architecture makes the driver particularly suitable for portable systems and line array applications where reducing system weight remains important.
An aluminium demodulating ring is integrated into the motor structure to reduce inductance variation and minimize distortion. Lower inductance modulation contributes to smoother frequency response characteristics while improving clarity and articulation throughout the critical vocal range.
With a measured 1.45 T flux density and 11 Tm BL factor, the magnetic assembly maintains strong control over the moving system while supporting efficient energy transfer and accurate transient reproduction. These characteristics help the driver maintain precise midrange reproduction even during high-output operation.
Voice Coil Construction and Thermal Performance
At the center of the B&C 6MDN44 is a 44 mm aluminium voice coil wound on a glass fibre former. The aluminium winding material reduces moving mass while maintaining the thermal stability required for demanding professional applications. This lower moving mass contributes directly to improved transient response and more accurate midrange reproduction.
The driver supports 200 W nominal power handling and 400 W continuous program power capacity, providing sufficient output capability for demanding multi-way loudspeaker applications. Its thermal architecture has been optimized for consistent performance during prolonged operation.
A ventilated voice coil gap improves airflow around the motor assembly, helping reduce thermal buildup and minimizing power compression during continuous high-level use. This cooling strategy contributes to stable long-term performance.
Cone Geometry and Suspension Design
The B&C 6MDN44 utilizes an exponential cone profile combined with a triple roll surround geometry, optimized specifically for dedicated midrange reproduction. This configuration allows controlled movement while preserving efficiency throughout the intended operating range.
A single spider suspension system maintains mechanical stability and controlled cone movement characteristics. The suspension system has been optimized for lower excursion applications where speed, articulation, and response accuracy remain priorities.
The cone assembly incorporates WP waterproof front-side treatment, improving durability and resistance against humidity and environmental exposure in both portable and installed sound reinforcement systems.
Professional System Integration
The B&C 6MDN44 has been optimized specifically for dedicated midrange applications requiring compact dimensions and efficient output.
Its combination of 140 Hz resonance frequency, lightweight moving mass, and strong efficiency characteristics allows designers to integrate the driver into compact multi-way loudspeaker systems while maintaining excellent vocal clarity and transient response. The high EBP value of 304 Hz further supports its suitability for dedicated midrange operation.
Typical applications include:
- Professional multi-way loudspeaker systems
- Compact line arrays
- Stage monitoring systems
- Vocal reinforcement systems
- Midrange sections in PA systems
- Installed sound reinforcement systems
Technical Specifications
Nominal Diameter: 170 mm (6.5 in)
Nominal Impedance: 8 Ω
Minimum Impedance: 6.5 Ω
Nominal Power Handling: 200 W
Continuous Program Power: 400 W
Sensitivity: 96.5 dB
Frequency Range: 150 Hz – 6000 Hz
Voice Coil Diameter: 44 mm (1.7 in)
Winding Material: Aluminium
Former Material: Glass Fibre
Winding Depth: 10 mm
Magnetic Gap Depth: 6 mm
Flux Density: 1.45 T
Magnet Material: Neodymium Ring
Cone Shape: Exponential
Surround Shape: Triple Roll
Spider Design: Single
Pole Design: T-Pole
Cone Treatment: WP Waterproof Front Side
Thiele-Small Parameters
Fs: 140 Hz
Re: 5.4 Ω
Qes: 0.46
Qms: 2.8
Qts: 0.40
Vas: 2.7 dm³
Sd: 132 cm²
η₀: 1.6 %
Xmax: ±2.5 mm
Xvar: ±3 mm
Mms: 11 g
BL Factor: 11 Tm
Le: 0.47 mH
EBP: 304 Hz
Mounting Information
Overall Diameter: 187 mm
Bolt Circle Diameter: 172 mm
Baffle Cutout Diameter: 145 mm
Depth: 73 mm
Flange and Gasket Thickness: 11 mm
Air Volume Occupied by Driver: 0.6 dm³
Net Weight: 1 kg
Shipping Weight: 1.2 kg
Shipping Box: 210 × 210 × 125 mm
Recone Kit: RCK06MDN448
Applications
The B&C 6MDN44 is engineered specifically for professional midrange applications where low weight, high sensitivity, and accurate vocal reproduction are priorities. Its lightweight neodymium motor structure, optimized moving assembly, and dedicated midrange design make it particularly suitable for line arrays, stage monitors, compact loudspeaker systems, and professional sound reinforcement applications.
For system designers requiring a dedicated professional midrange transducer optimized for vocal clarity, low distortion, and lightweight system integration, the B&C 6MDN44 delivers an effective combination of efficiency, reliability, 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.
