B&C DE7 0.75″ Professional High Frequency Compression Driver
The B&C DE7 is a compact professional high frequency compression driver designed to deliver exceptional efficiency, clarity, and reliability in demanding sound reinforcement applications. Featuring a 0.75-inch throat diameter, lightweight diaphragm assembly, and high-energy magnetic circuit, the B&C DE7 provides detailed high-frequency reproduction while maintaining the compact dimensions required for modern loudspeaker designs.
Engineered for professional PA systems, compact two-way loudspeakers, column arrays, portable sound systems, and installed audio applications, the B&C DE7 combines proven B&C engineering with robust construction to deliver consistent performance across a wide range of operating conditions. Its compact footprint allows system designers to create lightweight and space-efficient loudspeaker systems without sacrificing high-frequency output or intelligibility.
The driver utilizes a precision-engineered 25 mm aluminium voice coil coupled to a lightweight Mylar diaphragm, enabling fast transient response and accurate reproduction of vocal harmonics, speech content, and musical detail. This combination contributes to the driver’s smooth response characteristics and excellent long-term reliability.
With a sensitivity rating of 109 dB and a usable frequency response extending from 2 kHz to 18 kHz, the B&C DE7 is capable of delivering professional-grade performance in both portable and installed sound reinforcement systems. Its combination of compact dimensions, low weight, and acoustic performance makes it an outstanding choice for manufacturers and system designers seeking a high-quality compression driver solution.
Key Features
- 0.75-inch throat diameter
- 10 W nominal power handling
- 20 W continuous power handling
- 109 dB sensitivity
- 2 kHz – 18 kHz frequency response
- 25 mm (1 inch) aluminium voice coil
- Lightweight Mylar diaphragm
- High-efficiency compression driver design
- 1.65 T magnetic flux density
- Compact lightweight construction
- Low inductance design
- Optimized for professional loudspeaker systems
High-Efficiency Compression Driver Design
The B&C DE7 has been engineered to provide outstanding high-frequency performance from an exceptionally compact package. Its 19 mm (0.75 inch) throat diameter allows integration with a wide range of compact horn designs while maintaining excellent acoustic coupling and efficient sound radiation.
The driver achieves an impressive 109 dB sensitivity, allowing high output levels to be produced with relatively low amplifier power. This efficiency is particularly beneficial in professional sound reinforcement systems where maximizing acoustic output and system performance is critical.
The compact design also allows loudspeaker manufacturers greater flexibility when developing lightweight and space-efficient loudspeaker systems. Whether used in portable PA products, compact stage monitors, or installation loudspeakers, the B&C DE7 delivers professional performance while occupying minimal space.
Its efficient design contributes to excellent vocal projection, improved speech intelligibility, and detailed reproduction of musical content across the driver’s operating bandwidth.
Advanced Magnetic Circuit Technology
At the core of the B&C DE7 is a powerful magnetic circuit engineered to provide exceptional diaphragm control and acoustic efficiency. The motor assembly generates an impressive 1.65 Tesla flux density, creating the magnetic force necessary to achieve the driver’s high sensitivity and excellent transient performance.
The powerful magnetic field allows the diaphragm assembly to respond rapidly and accurately to incoming audio signals. This contributes to precise high-frequency reproduction and helps maintain clarity even during demanding high-output operation.
The optimized motor structure also helps reduce distortion, ensuring that vocals, speech, and musical detail remain clean and intelligible throughout the driver’s operating range.
Combined with the lightweight diaphragm assembly, the advanced magnetic system enables the B&C DE7 to deliver professional-grade performance from an extremely compact format.
Lightweight Mylar Diaphragm Assembly
The B&C DE7 utilizes a carefully engineered Mylar diaphragm designed to provide smooth response characteristics, long-term durability, and excellent transient behaviour.
Mylar remains a highly respected diaphragm material due to its combination of low mass, consistency, and mechanical stability. These characteristics allow the diaphragm to reproduce complex high-frequency information with accuracy while maintaining reliable performance over extended periods of operation.
The lightweight diaphragm contributes directly to the driver’s ability to reproduce frequencies up to 18 kHz, ensuring detailed reproduction of vocal harmonics, cymbals, acoustic instruments, and other high-frequency content.
The diaphragm assembly is also designed for dependable long-term operation, making the B&C DE7 suitable for professional applications where reliability is essential.
Precision Voice Coil Technology
The B&C DE7 incorporates a 25 mm (1 inch) aluminium voice coil optimized for efficiency, low moving mass, and accurate high-frequency reproduction.
The aluminium winding material reduces the mass of the moving assembly, allowing faster response to dynamic audio signals. This contributes to improved transient accuracy and cleaner reproduction of complex musical material.
The driver is rated for 10 W nominal power handling and 20 W continuous power handling, providing sufficient capability for compact professional loudspeaker systems operating within the recommended crossover range.
A very low 0.1 mH inductance further enhances the driver’s performance by helping maintain extended high-frequency response and smooth operation throughout its intended bandwidth.
Extended High-Frequency Reproduction
The B&C DE7 is designed to reproduce frequencies from 2 kHz to 18 kHz, providing the bandwidth required for accurate speech and music reproduction in professional sound reinforcement systems.
This broad operating range allows the driver to reproduce critical vocal harmonics, speech articulation, and high-frequency musical detail with excellent clarity. As a result, systems utilizing the B&C DE7 benefit from improved intelligibility and enhanced overall sound quality.
B&C recommends a crossover frequency of 2.5 kHz, allowing seamless integration with compatible low-frequency and midrange transducers. This crossover point provides designers with flexibility when developing compact two-way and multi-way loudspeaker systems.
The combination of high efficiency and extended frequency response makes the B&C DE7 a versatile solution for a wide range of professional audio applications.
Professional System Integration
The compact dimensions and lightweight construction of the B&C DE7 make it highly adaptable to numerous professional loudspeaker designs.
Typical applications include:
- Compact two-way loudspeakers
- Portable PA systems
- Column loudspeaker systems
- Installed sound systems
- Speech reinforcement systems
- Background music systems
- Compact stage monitors
- Professional sound reinforcement systems
Its small footprint and low weight provide loudspeaker designers with exceptional flexibility while maintaining professional acoustic performance.
Technical Specifications
Throat Diameter: 19 mm (0.75 in)
Nominal Impedance: 8 Ω
Minimum Impedance: 6.6 Ω
Nominal Power Handling: 10 W
Continuous Power Handling: 20 W
Sensitivity: 109 dB
Frequency Range: 2 kHz – 18 kHz
Recommended Crossover: 2.5 kHz
Voice Coil Diameter: 25 mm (1 in)
Winding Material: Aluminium
Inductance: 0.1 mH
Flux Density: 1.65 T
Diaphragm Material: Mylar
Design Features
Driver Type: High Frequency Compression Driver
Throat Diameter: 19 mm (0.75 in)
Voice Coil Diameter: 25 mm (1 in)
Diaphragm Material: Mylar
Winding Material: Aluminium
Magnetic Flux Density: 1.65 T
Recommended Crossover Frequency: 2.5 kHz
Mounting Information
Mounting Configuration: Two M4 holes 180° on 53 mm (2.1 in) diameter
Overall Diameter: 62 mm (2.44 in)
Depth: 35 mm (1.37 in)
Net Weight: 0.17 kg (0.37 lb)
Shipping Units: 1 Piece
Shipping Weight: 0.18 kg (0.4 lb)
Shipping Box: 65 × 55 × 40 mm
Replacement Diaphragm: MMDDE78
Applications
The B&C DE7 is engineered for professional high-frequency reproduction in compact loudspeaker systems where efficiency, clarity, and reliability are essential. Its lightweight Mylar diaphragm, high-energy magnetic circuit, and compact dimensions make it particularly suitable for portable PA systems, column arrays, compact two-way loudspeakers, speech reinforcement systems, and installed sound applications.
With excellent sensitivity, detailed high-frequency performance, and dependable B&C engineering, the B&C DE7 provides loudspeaker designers with a versatile and highly effective compression driver solution. For applications requiring professional high-frequency output from a compact and lightweight package, the B&C DE7 delivers the performance and reliability expected from a premium B&C transducer.
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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.
