B&C Speakers FB4648
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Manufacturer Information
B&C Speakers
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A B&C Speakers Crossover Designed for Professional Speaker Assemblies
Recognized in the sound reinforcement industry, B&C Speakers offers components intended for reliable and high-performance systems. The FB4648 fits this approach: a ready-to-install passive crossover, convenient for structuring a 2-way speaker project without resorting to multichannel amplification or active filtering.
Who Is It For and What Are Its Uses?
The B&C Speakers FB4648 targets integrators, manufacturers, technicians, and DIY enthusiasts who want to assemble or upgrade a 2-way speaker. It is particularly suited for setups seeking coherent frequency distribution, improved vocal clarity, and better-controlled tweeter protection, while maintaining the simplicity of passive wiring.
Filtering, Slopes, and Integration: Essentials for a Balanced Speaker
A 3.6 kHz Crossover for a Clean Junction
With a crossover frequency set at 3.6 kHz, this filter assigns mid-bass frequencies to the main driver and reserves high frequencies for the tweeter. This separation aims to limit unnecessary overlap and enhance definition, especially on transients and intelligibility.
Differentiated Slopes for Better Spill Control
The 12dB/octave high-pass and 18dB/octave low-pass slopes provide an effective compromise between musicality and control. These slopes help contain out-of-band frequencies, contributing to cleaner listening and better performance at high sound pressure levels, depending on the associated drivers and the overall speaker tuning.
Technical specifications
| Number of channels | 2 |
| Rackable | No |
| Category | sound reinforcement accessory |
| Type | Speaker Spare Parts |
| Brand | B&C Speakers |
| Model | FB4648 |
| Configuration | 2-way |
| Power handling | 400 W |
| Impedance | 8 Ohms |
| Crossover frequency | 3.6 kHz |
| Slope | 12dB/octave (high-pass) |
Questions frequently asked
Is the B&C Speakers FB4648 compatible with an 8-ohm 2-way speaker?
This passive crossover is designed for an 8-ohm 2-way configuration. Its power handling is 400 W.
What is the crossover frequency of this passive crossover?
The crossover point is set at 3.6 kHz. The main driver handles the mid-bass range, while the tweeter covers the higher frequencies.
What filter slopes are used?
The high-pass filter has a 12 dB per octave slope. The low-pass filter is rated at 18 dB per octave to more aggressively attenuate frequencies beyond its band. This arrangement helps control overlap between the two drivers.
Does this crossover require active filtering or multichannel amplification?
No multichannel amplification or active filtering is needed for integration. The FB4648 allows passive wiring in a 2-way speaker.
Is this crossover suitable for speaker upgrades?
This model is intended for integrators, technicians, and DIY projects involving assembly or upgrading of 2-way speakers. The 3.6 kHz crossover aims for better frequency distribution and controlled protection of the tweeter section.
