B&C – FB464v2

Completing the most accurate point source solution available, B&C Speakers offers the FB464 passive crossover for our DCX464 coaxial compression driver. Specifically designed for use in conjunction with the ME464, 300Hz horn, users of all types can now have flat high-fidelity response out of the box using 100% OEM components. The FB464 crossover phase aligns the mid and high frequency elements of the DCX464, and implements an asymmetrical slope crossover at 3.6kHz without reducing efficiency. This crossover frequency best balances energy between the two diaphragms for minimum distortion at all output levels.

This is the V2: the reinforced version, without the filament bulb protection network of the V1. Protection is handled by your DSP limiters instead. Available in 8 and 16 ohm — pick the impedance that matches your DCX464.

FB464 V1 or V2?

Both versions share the same circuit design and the same crossover characteristics: identical crossover frequencies, filter topology and acoustic response. The V2 is a reinforced version rather than a different tuning. Two things differ:

• The V2 uses higher power-rated inductors throughout, which improves reliability in high-power applications.
• The V2 drops the built-in light bulb protection network. That leaves more room to optimise DSP limiter settings, allowing a higher maximum SPL while keeping a safe operating margin for the DCX464 and DCX462.

V1 is the one for standard applications, where the integrated light bulb protection is preferred. V2 is aimed at high-power and professional systems with properly configured DSP limiters, where maximum output is required.

Technical information supplied by the B&C Speakers technical team.