CS Port
The ACN400 is an analog crossover network featuring the groundbreaking “MK Filter,” which eliminates phase rotation even with a steep -12dB/Octave slope. Designed for high-performance multi-amp systems, it supports 2-way, 3-way, 4-way, and 3D configurations, making it a versatile centerpiece in any high-fidelity setup. Its minimalist signal path and precision-built attenuators preserve sonic purity while offering deep customization.
This analog crossover offers unmatched phase integrity through CS Ports proprietary MK Filter technology, delivering signal separation without the typical compromises in timing or soundstage. A resistive switching attenuator using crossbar-twin-construction relays ensures distortion-free volume control. The doubly regulated power supply combines switching and dropper stages for optimal stability and low noise. The ACN400 also includes transformer-balanced inputs and outputs for fully symmetrical signal transmission, plus programmable memory presets for quick recall of different system configurations.