B&C DE90TN 1.4″ Professional High Output Titanium Compression Driver
The B&C DE90TN is a premium large-format 1.4-inch high frequency compression driver developed for professional sound reinforcement systems requiring exceptional output capability, extended frequency response, high efficiency, and long-term reliability. Engineered for demanding touring applications, large-scale installations, stadium sound systems, arena reinforcement, professional line arrays, high-performance point source loudspeakers, and stage monitoring environments, the B&C DE90TN combines advanced titanium diaphragm technology with a powerful magnetic motor structure to deliver outstanding acoustic performance across a broad operating bandwidth.
As one of B&C Speakers’ flagship large-format compression drivers, the B&C DE90TN has been designed to meet the increasingly demanding requirements of modern loudspeaker systems. The driver incorporates a substantial 75 mm (3 inch) aluminium voice coil, providing the thermal capacity necessary for high continuous output levels while maintaining excellent transient response and consistent sonic performance.
A defining characteristic of the B&C DE90TN is its combination of high sensitivity and significant power handling. With 107.5 dB sensitivity, 110 W nominal power handling, and 220 W continuous power handling, the driver is capable of producing substantial acoustic output while preserving clarity and detail across the vocal and high-frequency spectrum.
The driver utilizes a precision-engineered titanium diaphragm, selected for its excellent rigidity-to-weight ratio and long-term durability. This diaphragm is coupled to a high-energy magnetic structure producing 1.8 Tesla flux density, ensuring excellent diaphragm control, improved efficiency, and reduced distortion throughout the operating range.
With a frequency response extending from 0.5 kHz to 18 kHz and a recommended crossover frequency of 1 kHz, the B&C DE90TN provides system designers with exceptional flexibility when developing high-performance loudspeaker systems for professional applications.
Key Features
- 1.4-inch throat diameter compression driver
- 110 W nominal power handling
- 220 W continuous power handling
- 107.5 dB sensitivity
- Frequency response from 0.5 kHz to 18 kHz
- Recommended crossover frequency of 1 kHz
- 75 mm (3 inch) aluminium voice coil
- Titanium diaphragm assembly
- High-efficiency 1.8 T magnetic structure
- Low inductance design
- Excellent transient response
- Suitable for low crossover operation
- Professional touring and installation performance
- Designed for high-output loudspeaker systems
- Outstanding long-term reliability
Engineered for High-Performance Professional Audio
The B&C DE90TN has been developed specifically for professional sound reinforcement systems where maximum output, consistent reliability, and accurate sound reproduction are essential.
Modern loudspeaker systems are expected to provide exceptional intelligibility, clarity, and dynamic capability while operating at high sound pressure levels for extended periods. To meet these demands, compression drivers must combine substantial thermal capacity with precise diaphragm control and efficient acoustic performance.
The B&C DE90TN achieves these objectives through a carefully engineered combination of a large-format titanium diaphragm, a substantial 75 mm voice coil assembly, and a powerful magnetic circuit.
Its 36 mm (1.4 inch) throat diameter allows integration with a wide range of professional horns and waveguides, making it suitable for numerous loudspeaker configurations.
Whether used in a touring PA system, stadium installation, theatre sound system, house of worship, concert venue, or large-scale line array, the B&C DE90TN delivers the performance required by professional system designers and audio engineers.
Large 75 mm Voice Coil for Exceptional Power Handling
At the heart of the B&C DE90TN is a substantial 75 mm (3 inch) aluminium voice coil.
The large-diameter voice coil provides significant thermal advantages compared with smaller compression driver designs. Increased surface area improves heat dissipation, helping maintain stable operating temperatures during extended periods of high-level operation.
This robust design enables the driver to achieve 110 W nominal power handling and 220 W continuous power handling, making it suitable for demanding professional environments where reliability under sustained load is critical.
The aluminium winding material contributes to lower moving mass while maintaining excellent electrical conductivity. This design approach helps preserve transient response and allows the diaphragm assembly to respond quickly and accurately to changes in the audio signal.
The result is a compression driver capable of delivering both high output levels and excellent sonic detail, even under challenging operating conditions.
For touring systems and fixed installations alike, this combination of thermal stability and responsiveness is a major advantage.
Titanium Diaphragm Technology
The B&C DE90TN utilizes a precision-engineered titanium diaphragm, a material widely recognized throughout the professional audio industry for its combination of strength, rigidity, and durability.
Titanium offers excellent structural stability while maintaining relatively low mass. This allows the diaphragm to reproduce high-frequency content accurately while resisting deformation during high-output operation.
The rigidity of the diaphragm contributes to improved transient accuracy and reduced unwanted resonances, helping preserve clarity and musical detail.
The diaphragm’s performance plays a critical role in the driver’s ability to reproduce frequencies extending to 18 kHz, ensuring excellent reproduction of harmonics, vocal articulation, and fine musical nuances.
For professional sound reinforcement applications, this translates into improved intelligibility, greater detail retrieval, and a more natural listening experience.
The durability of titanium also makes it particularly well suited for touring systems where equipment must withstand frequent transportation and demanding operating environments.
High-Energy 1.8 Tesla Magnetic Structure
The motor assembly of the B&C DE90TN has been optimized for efficiency, control, and output capability.
Generating 1.8 Tesla flux density, the magnetic structure provides exceptional control over diaphragm movement, enabling the driver to achieve its impressive 107.5 dB sensitivity rating.
High magnetic flux density allows rapid acceleration and deceleration of the diaphragm assembly, improving transient response and helping preserve critical musical information.
Accurate control of diaphragm motion is also important for minimizing distortion and maintaining consistent performance at elevated output levels.
The efficiency of the magnetic circuit enables the B&C DE90TN to deliver substantial acoustic output while reducing amplifier power requirements, providing valuable headroom in professional sound systems.
This combination of efficiency and control makes the driver an excellent choice for high-performance loudspeaker designs.
Extended Frequency Response
One of the most important characteristics of the B&C DE90TN is its broad operating bandwidth.
The driver is specified for operation from 0.5 kHz to 18 kHz, allowing it to reproduce a significant portion of the audible spectrum with exceptional accuracy.
This extended lower-frequency capability provides important advantages for loudspeaker designers. By enabling operation at lower crossover frequencies, the driver can cover more of the critical vocal range while reducing demands on the low-frequency section.
At the upper end of the spectrum, extension to 18 kHz ensures accurate reproduction of high-frequency harmonics and subtle musical details.
The result is improved tonal balance, enhanced vocal intelligibility, and more coherent overall system performance.
This wide bandwidth makes the B&C DE90TN suitable for premium professional loudspeaker designs where performance is a primary objective.
Optimized for Low Crossover Operation
The B&C DE90TN is designed for use with a recommended crossover frequency of 1 kHz.
Lower crossover frequencies can provide significant system design advantages by improving integration between the compression driver and low-frequency transducers.
This often results in smoother response through the crossover region and more consistent directivity characteristics.
The combination of the large titanium diaphragm, powerful magnetic motor, and substantial voice coil enables the B&C DE90TN to operate effectively at these lower crossover points while maintaining reliability and acoustic performance.
This flexibility allows system designers to optimize loudspeaker performance for a wide variety of professional applications.
Exceptional Efficiency for Professional Systems
With a sensitivity rating of 107.5 dB, the B&C DE90TN is an extremely efficient compression driver.
High sensitivity allows greater acoustic output from a given amplifier power level, increasing overall system efficiency and reducing power demands.
This characteristic is particularly valuable in large-scale sound reinforcement systems where maximizing output and headroom is essential.
The combination of high efficiency and substantial power handling enables the driver to deliver impressive sound pressure levels while maintaining excellent clarity and dynamic capability.
For professional users, this translates into greater system performance and improved operational flexibility.
Applications
The B&C DE90TN is ideally suited for a wide range of demanding professional audio applications, including:
- Touring PA systems
- Large-format line arrays
- High-output point source loudspeakers
- Stadium sound systems
- Arena audio installations
- Theatre sound reinforcement
- Houses of worship
- Stage monitoring systems
- Concert venues
- Corporate AV installations
- Outdoor event systems
- Premium installation loudspeakers
Its combination of efficiency, power handling, and bandwidth makes it suitable for both fixed installations and portable professional sound systems.
Built for Long-Term Reliability
Professional loudspeaker systems often operate under demanding conditions where reliability is essential.
The B&C DE90TN has been engineered to provide consistent long-term performance through the use of premium materials and proven design techniques.
The large 75 mm voice coil helps manage heat effectively during extended operation, minimizing thermal compression and maintaining stable performance.
The titanium diaphragm provides excellent resistance to mechanical stress while preserving the accuracy required for professional audio reproduction.
Combined with the powerful magnetic assembly, these design elements contribute to dependable operation across a wide range of professional environments.
For system manufacturers, integrators, and rental companies, this reliability is a critical advantage.
Technical Specifications
Throat Diameter: 36 mm (1.4 in)
Nominal Impedance: 8 Ω
Minimum Impedance: 8.3 Ω
Nominal Power Handling: 110 W
Continuous Power Handling: 220 W
Sensitivity: 107.5 dB
Frequency Range: 0.5 kHz – 18 kHz
Recommended Crossover: 1 kHz
Voice Coil Diameter: 75 mm (3 in)
Winding Material: Aluminium
Inductance: 0.14 mH
Flux Density: 1.8 T
Diaphragm Material: Titanium
Design Features
Driver Type: High Frequency Compression Driver
Throat Diameter: 36 mm (1.4 in)
Voice Coil Diameter: 75 mm (3 in)
Voice Coil Winding Material: Aluminium
Diaphragm Material: Titanium
Magnetic Flux Density: 1.8 T
Inductance: 0.14 mH
Recommended Crossover Frequency: 1 kHz
Mounting Information
Mounting Configuration: Four M6 holes 90° on 102 mm (4 in) diameter
Overall Diameter: 170 mm (6.7 in)
Depth: 65 mm (2.5 in)
Net Weight: 4.4 kg (9.7 lb)
Shipping Units: 1 Piece
Shipping Weight: 4.52 kg (9.96 lb)
Shipping Box Dimensions: 190 × 190 × 80 mm (7.48 × 7.48 × 3.15 in)
Applications Summary
The B&C DE90TN is a professional large-format compression driver engineered for high-output sound reinforcement systems that require exceptional efficiency, substantial power handling, extended frequency response, and proven reliability. Featuring a large 75 mm aluminium voice coil, a durable titanium diaphragm, 107.5 dB sensitivity, 110 W nominal power handling, 220 W continuous power handling, and a broad 0.5 kHz – 18 kHz operating range, the driver is ideally suited to touring systems, stadium installations, theatres, houses of worship, premium point source loudspeakers, and professional line array systems.
For loudspeaker designers seeking a high-performance 1.4-inch compression driver capable of delivering powerful output while maintaining clarity, consistency, and long-term durability, the B&C DE90TN represents one of the strongest solutions available within the B&C professional compression driver portfolio.
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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.
