B&C FBCXN88 Passive Crossover Network for 12CXN88, 14CXN88 and 15CXN88 Coaxial Loudspeaker Systems
The B&C FBCXN88 is a professionally engineered passive crossover network specifically developed for the B&C 12CXN88, 14CXN88, and 15CXN88 coaxial loudspeaker drivers, as well as the recommended CX14 enclosure design. Designed by B&C Speakers to provide seamless integration between the low-frequency and high-frequency sections of these premium coaxial transducers, the B&C FBCXN88 delivers factory-optimised performance, exceptional reliability, and the acoustic precision required for professional sound reinforcement systems.
In any coaxial loudspeaker design, the crossover network is one of the most critical components affecting overall performance. While the driver itself determines the fundamental capabilities of the system, the crossover ultimately controls how effectively the low-frequency cone and high-frequency compression driver work together. Proper crossover design influences frequency response, phase alignment, vocal clarity, power handling, dispersion consistency, and long-term reliability.
The B&C FBCXN88 has been specifically engineered to eliminate the uncertainty and complexity associated with designing a passive crossover from scratch. Rather than relying on generic crossover solutions that may compromise performance, this dedicated network has been optimised by B&C engineers for the exact electrical and acoustic characteristics of the compatible CXN88 series coaxial drivers.
Featuring a carefully selected 1.6 kHz crossover frequency, advanced 18 dB/octave and 12 dB/octave filter slopes, and a compact professional-grade design, the B&C FBCXN88 enables loudspeaker manufacturers, OEM builders, installers, and system designers to achieve consistent, high-performance results while significantly reducing development time.
Whether used in stage monitors, portable PA systems, houses of worship, corporate audio installations, theatres, live music venues, or custom coaxial loudspeaker projects, the B&C FBCXN88 provides the performance and reliability required for demanding professional audio environments.
Purpose-Built for B&C CXN88 Series Coaxial Drivers
The B&C FBCXN88 is not a generic passive crossover network. It has been specifically designed for use with the following B&C coaxial transducers:
- B&C 12CXN88
- B&C 14CXN88
- B&C 15CXN88
These professional coaxial loudspeakers combine a high-output low-frequency transducer with a centrally mounted high-frequency compression driver to create a true point-source loudspeaker system.
By placing both acoustic sources on the same axis, coaxial designs provide significant advantages over traditional separated-driver loudspeaker configurations.
However, fully realising these advantages requires a crossover network specifically engineered for the drivers involved.
The B&C FBCXN88 ensures:
- Accurate driver integration
- Smooth frequency transitions
- Improved phase coherence
- Consistent dispersion characteristics
- Enhanced speech intelligibility
- Balanced tonal response
- Reliable long-term operation
Because the crossover has been developed by the same engineering team responsible for the drivers, users benefit from factory-optimised system performance without extensive crossover development or tuning.
Optimised for the CX14 Recommended Loudspeaker Design
The B&C FBCXN88 has also been designed for use with the recommended CX14 enclosure design, creating a complete loudspeaker solution that combines driver, enclosure, and crossover into a unified acoustic system.
This integrated design philosophy offers several benefits.
Faster Product Development
Manufacturers can implement a proven crossover solution without spending months designing and testing passive networks.
Predictable Performance
System behaviour closely follows B&C’s intended acoustic targets.
Reduced Engineering Costs
Using a factory-developed crossover eliminates much of the measurement and optimisation work normally associated with passive loudspeaker development.
Consistent Production Results
Every system built around the crossover performs consistently across production runs.
Professional Sound Quality
The crossover complements the acoustic characteristics of the driver and enclosure combination for optimal performance.
For loudspeaker manufacturers seeking dependable results, the B&C FBCXN88 provides an efficient path to professional-quality loudspeaker design.
1.6 kHz Crossover Frequency for Seamless Integration
At the centre of the B&C FBCXN88 design is a carefully selected crossover frequency of:
1.6 kHz
This crossover point has been engineered to optimise the transition between the low-frequency cone and the high-frequency compression driver.
The crossover frequency directly influences how naturally both sections blend together and how effectively the loudspeaker behaves as a single acoustic source.
A properly selected crossover point offers numerous benefits.
Smooth Frequency Response
The transition between driver sections remains balanced and controlled.
Improved Vocal Clarity
Critical vocal frequencies are reproduced accurately without noticeable discontinuities.
Better Acoustic Summation
Both sections combine naturally through the crossover region.
Enhanced Tonal Accuracy
The overall frequency response remains consistent and natural.
Controlled Directivity
Dispersion characteristics remain smooth throughout the crossover range.
For professional sound reinforcement applications where clarity and intelligibility are essential, proper crossover frequency selection is critical, and the B&C FBCXN88 has been specifically optimised to achieve these goals.
Advanced Filter Slopes for Superior Acoustic Performance
The B&C FBCXN88 incorporates carefully engineered crossover slopes of:
- 18 dB/octave
- 12 dB/octave
These filter characteristics help control how frequencies are distributed between the low-frequency and high-frequency sections of the coaxial driver.
The selected slopes provide several important advantages.
Reduced Driver Overlap
Each section reproduces only the frequencies it is designed to handle.
Improved Driver Protection
Steeper filtering reduces unwanted frequency content reaching sensitive components.
Better Phase Behaviour
The crossover maintains accurate acoustic summation through the crossover region.
Enhanced Clarity
Reduced interaction between driver sections improves overall detail and intelligibility.
Increased Reliability
Limiting excessive out-of-band energy contributes to long-term component durability.
These design characteristics allow the B&C FBCXN88 to deliver a highly refined and professional acoustic presentation.
Preserving the Benefits of Coaxial Loudspeaker Technology
One of the primary reasons audio professionals choose coaxial loudspeaker designs is their ability to behave as a true point-source system.
Because both the low-frequency and high-frequency sections share the same acoustic axis, the loudspeaker provides a more coherent listening experience throughout the coverage area.
The B&C FBCXN88 has been developed specifically to preserve these advantages.
Consistent Coverage
Listeners experience more uniform frequency response across the coverage pattern.
Superior Imaging
The point-source design improves localisation and spatial accuracy.
Better Phase Coherence
Acoustic alignment remains more consistent than traditional multi-driver arrangements.
Improved Monitor Performance
Coaxial loudspeakers excel in stage monitoring applications where symmetrical coverage is critical.
Enhanced Speech Intelligibility
Accurate driver integration contributes to improved vocal reproduction.
The crossover network plays a vital role in maintaining these performance characteristics.
Ideal Applications for the B&C FBCXN88
The B&C FBCXN88 is suitable for a wide variety of professional loudspeaker applications.
Typical installations include:
Professional Stage Monitors
Coaxial systems provide consistent coverage and excellent performer monitoring.
Portable PA Systems
Point-source behaviour improves audience coverage and vocal intelligibility.
Houses of Worship
Natural speech reproduction and even coverage are essential for spoken-word applications.
Corporate AV Systems
Conference rooms and presentation environments benefit from clear vocal reproduction.
Theatres and Performing Arts Venues
Accurate imaging supports live performances and theatrical productions.
Live Music Reinforcement
The crossover supports the dynamic performance required for professional concert sound.
Fixed Installations
Reliable passive operation simplifies installation and long-term maintenance.
OEM Loudspeaker Manufacturing
Manufacturers can incorporate a proven factory-designed crossover into production systems.
Passive Design Simplicity and Reliability
The passive architecture of the B&C FBCXN88 provides numerous practical benefits.
No External Power Requirements
The crossover operates entirely within the loudspeaker system.
Simplified Wiring
Installation is straightforward compared to active multi-amplifier systems.
Reduced System Complexity
Fewer components result in easier deployment and maintenance.
Reliable Long-Term Operation
Passive networks provide dependable performance in demanding environments.
Lower System Costs
No additional DSP channels or amplifier outputs are required.
These advantages make passive crossover networks a preferred solution for many professional loudspeaker designs.
Compact Design for Easy Integration
Despite its sophisticated crossover architecture, the B&C FBCXN88 maintains a practical and installation-friendly form factor.
Overall Dimensions
173 x 120 mm (6.81 x 4.72 inches)
The compact layout allows easy integration into loudspeaker enclosures while minimising the impact on internal cabinet volume.
This makes the crossover suitable for:
- OEM manufacturing
- Custom loudspeaker construction
- Prototype development
- Commercial loudspeaker production
- Retrofit projects
Its efficient footprint provides installation flexibility without compromising performance.
Built for Professional Audio Reliability
B&C Speakers has earned a worldwide reputation for designing professional loudspeaker components that perform consistently under demanding operating conditions.
The B&C FBCXN88 reflects this commitment through:
- Purpose-built crossover engineering
- Factory-developed acoustic optimisation
- Reliable passive operation
- Professional-grade construction
- Long-term durability
- Consistent manufacturing quality
Whether deployed in touring systems, permanent installations, or OEM loudspeaker production, the crossover is engineered to deliver dependable performance year after year.
Technical Specifications
B&C FBCXN88 Technical Specifications
Nominal Impedance: 8 Ω
Filter Type: Two-Way Passive Crossover
Crossover Frequency: 1.6 kHz
Filter Slopes: 18 dB/octave – 12 dB/octave
Overall Dimensions: 173 x 120 mm (6.81 x 4.72 in)
Compatible Drivers
Designed For
B&C 12CXN88 – 8 Ω
B&C 14CXN88 – 8 Ω
B&C 15CXN88 – 8 Ω
Recommended Loudspeaker Design
B&C CX14 Suggested Enclosure Design
The crossover has been specifically optimised to work with the CX14 recommended cabinet configuration and the compatible CXN88 series coaxial drivers.
Mounting and Shipping Information
Physical Specifications
Net Weight: 0.65 kg (1.43 lb)
Shipping Weight: 0.69 kg (1.52 lb)
Shipping Units: 1 Piece
Shipping Box Dimensions: 180 x 130 x 55 mm (7.1 x 5.1 x 2.2 in)
Why Choose the B&C FBCXN88?
The B&C FBCXN88 is a dedicated passive crossover network engineered specifically for the B&C 12CXN88, 14CXN88, and 15CXN88 coaxial loudspeaker drivers. Featuring a carefully optimised 1.6 kHz crossover frequency, advanced 18 dB/octave and 12 dB/octave filter slopes, compatibility with the CX14 recommended enclosure design, and factory-developed driver integration, it delivers the acoustic consistency and reliability required for professional loudspeaker systems.
For OEM manufacturers, loudspeaker designers, installers, and audio professionals seeking a proven crossover solution that maximises the performance of B&C coaxial transducers, the B&C FBCXN88 offers an ideal combination of engineering precision, installation simplicity, and exceptional sound quality. By ensuring seamless integration between low-frequency and high-frequency sections, the B&C FBCXN88 helps create professional coaxial loudspeaker systems capable of delivering outstanding clarity, coverage, and long-term reliability in the most demanding audio 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.
