B&C DE400TN 1″ Professional High Frequency Compression Driver
The B&C DE400TN is a professional 1-inch high frequency compression driver engineered for applications requiring strong output capability, extended bandwidth performance, and the durability advantages of titanium diaphragm technology. Developed for professional sound reinforcement systems, portable PA loudspeakers, stage monitoring products, installed audio systems, and compact line arrays, the B&C DE400TN combines a high-efficiency motor structure with robust diaphragm construction to deliver reliable and detailed high-frequency reproduction.
Designed around B&C’s established compression driver platform, the B&C DE400TN incorporates a large diameter voice coil, optimized magnetic circuit, and lightweight moving assembly to achieve strong acoustic performance while maintaining compact dimensions. The result is a driver capable of delivering controlled high-frequency output with excellent reliability under demanding operating conditions.
At the center of the B&C DE400TN is a 44 mm aluminium voice coil coupled to a durable titanium diaphragm. This combination provides excellent thermal performance, improved mechanical strength, and the transient response required for professional sound reinforcement applications. The titanium diaphragm contributes to strong detail retrieval and reliable operation while supporting high output levels.
With a usable operating range extending from 1.2 kHz to 18 kHz, compact physical dimensions, and proven professional construction, the B&C DE400TN provides loudspeaker designers with a versatile high-frequency solution suitable for a wide range of professional audio applications.
Key Features
- 1-inch throat diameter
- 50 W nominal power handling
- 100 W continuous power handling
- 106 dB sensitivity
- 1.2 kHz – 18 kHz frequency response
- 44 mm (1.7 inch) aluminium voice coil
- Titanium diaphragm assembly
- High-efficiency compression driver architecture
- 1.8 T magnetic flux density
- Low inductance motor design
- Compact lightweight construction
- Optimized for professional sound reinforcement applications
Professional Compression Driver Design
The B&C DE400TN has been engineered to deliver professional-grade high-frequency performance while maintaining compact dimensions and reliable operation. Featuring a 25 mm (1 inch) throat diameter, the driver integrates easily with a broad range of professional horns and waveguides commonly used in modern loudspeaker systems.
Its compression driver architecture promotes efficient acoustic loading between the diaphragm and horn assembly, improving output capability while maintaining controlled dispersion characteristics.
With a sensitivity rating of 106 dB, the driver provides efficient acoustic output suitable for professional sound reinforcement environments while maintaining manageable amplifier requirements.
The compact dimensions of the driver further increase design flexibility, making it suitable for numerous loudspeaker configurations.
High-Energy Magnetic Circuit Technology
The B&C DE400TN utilizes a powerful magnetic system optimized for efficiency and diaphragm control.
The motor assembly generates 1.8 Tesla magnetic flux density, providing strong magnetic force for precise movement of the diaphragm assembly and improved transient response.
This high-energy magnetic structure contributes directly to improved sensitivity and consistent acoustic performance while reducing distortion during demanding operation.
Maintaining precise diaphragm control is critical in compression driver applications, particularly where sustained high output is required.
Combined with the lightweight moving assembly, the magnetic structure helps preserve articulation and musical detail across the operating bandwidth.
Large Diameter Voice Coil Design
At the heart of the B&C DE400TN is a 44 mm (1.7 inch) aluminium voice coil, engineered for improved thermal stability and long-term reliability.
The large diameter voice coil allows the driver to manage 50 W nominal power handling and 100 W continuous power handling, making it suitable for professional applications requiring sustained output capability.
Aluminium winding material reduces moving mass while maintaining efficient power transfer characteristics. This contributes to faster transient response and improved reproduction of dynamic program material.
The driver also features low inductance of 0.11 mH, helping maintain smooth response characteristics and extended upper-frequency performance.
The optimized voice coil assembly contributes significantly to the driver’s reliability and acoustic performance.
Titanium Diaphragm Technology
A defining feature of the B&C DE400TN is its titanium diaphragm, engineered for durability, mechanical strength, and extended high-frequency performance.
Titanium diaphragm construction provides excellent rigidity, helping maintain controlled diaphragm movement under demanding operating conditions. This contributes to accurate reproduction of musical detail and improved articulation.
The diaphragm supports frequency extension up to 18 kHz, allowing detailed reproduction of upper harmonics and critical vocal information.
Titanium construction also offers improved durability during prolonged professional operation, making the driver suitable for portable and touring applications.
The combination of strong mechanical properties and low moving mass contributes significantly to the driver’s performance characteristics.
Extended Frequency Response Performance
The B&C DE400TN provides an operating bandwidth extending from 1.2 kHz to 18 kHz, supporting broad coverage across professional high-frequency applications.
Its lower frequency capability provides additional flexibility when designing compact two-way systems and integrating the driver into larger multi-way loudspeaker platforms.
B&C recommends a crossover frequency of 1.5 kHz, allowing designers to maximize performance while maintaining long-term reliability.
The broad bandwidth contributes to clear vocal reproduction, excellent speech intelligibility, and accurate musical detail.
Professional System Integration
The compact design and professional construction of the B&C DE400TN allow integration across numerous loudspeaker applications.
Typical applications include:
- Professional two-way loudspeakers
- Portable PA systems
- Stage monitors
- Installed sound systems
- Compact line arrays
- Multi-way loudspeaker systems
- Speech reinforcement products
- Touring audio systems
Its combination of compact dimensions, titanium diaphragm technology, and professional efficiency provides significant design flexibility.
Technical Specifications
Throat Diameter: 25 mm (1 in)
Nominal Impedance: 8 Ω
Minimum Impedance: 7.7 Ω
Nominal Power Handling: 50 W
Continuous Power Handling: 100 W
Sensitivity: 106 dB
Frequency Range: 1.2 kHz – 18 kHz
Recommended Crossover: 1.5 kHz
Voice Coil Diameter: 44 mm (1.7 in)
Winding Material: Aluminium
Inductance: 0.11 mH
Flux Density: 1.8 T
Diaphragm Material: Titanium
Design Features
Driver Type: High Frequency Compression Driver
Throat Diameter: 25 mm (1 in)
Voice Coil Diameter: 44 mm (1.7 in)
Diaphragm Material: Titanium
Winding Material: Aluminium
Magnetic Flux Density: 1.8 T
Recommended Crossover Frequency: 1.5 kHz
Mounting Information
Mounting Configuration: Two M6 holes 180° on 76 mm (3 in) diameter
Overall Diameter: 85 mm (3.3 in)
Depth: 44 mm (1.7 in)
Net Weight: 0.86 kg (1.88 lb)
Shipping Units: 1 Piece
Shipping Weight: 0.89 kg (1.95 lb)
Shipping Box: 105 × 105 × 65 mm
Applications
The B&C DE400TN is engineered for professional applications requiring reliable operation, durable diaphragm construction, and broad frequency coverage. Its titanium diaphragm assembly, powerful magnetic structure, and large diameter voice coil make it particularly suitable for portable PA systems, stage monitors, installed sound systems, compact line arrays, and professional loudspeaker products operating in demanding environments.
With strong power handling, dependable thermal performance, and proven B&C engineering, the B&C DE400TN provides loudspeaker designers with a professional compression driver solution capable of delivering clear, articulate, and reliable high-frequency reproduction. For systems requiring compact dimensions combined with durable professional performance, the B&C DE400TN offers an effective and dependable solution.
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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.
