ESB Audio 3.6K2 CX — 3000 Series 2-Way Passive Crossover (pair) | HF Audio Labs

The Passive Crossover for ESB 3000 Series Two-Way Front Stage Systems

The ESB 3.6K2 CX is the passive crossover network designed for the ESB 3000 Series two-way driver combination — the 3.165 woofer and 3.28 tweeter.

It provides the frequency division needed to integrate both drivers correctly in a passive two-way front stage, allowing each driver to operate in the range it was designed for.

Design

The 3.6K2 CX was designed around the specific characteristics of the 3.165 and 3.28 combination. Crossover points and component values are matched to those drivers — the same approach ESB applies across the full crossover range.

System Application

The 3.6K2 CX is used with the 3.6K2 speaker system and is available as a standalone component for custom two-way builds using 3000 Series drivers. It connects between the amplifier and the 3.165 and 3.28, dividing the frequency range appropriately for each driver.

HF Audio Perspective

A passive two-way crossover is one of the most direct paths to a properly integrated front stage. When the crossover is designed around the specific drivers it serves, the result is more consistent and predictable than using a generic network.

The 3.6K2 CX completes the 3.6K2 system correctly. For those building a clean passive two-way 3000 Series front stage, it is the right finishing component.