CLS-6400 ISO

About the CLS-6400 ISO

The Chang Lightspeed CLS-6400 ISO is a high-performance power line conditioner designed to enhance audio and video system performance by reducing noise and protecting against voltage spikes. It features four double-filtered analog outlets and two fully filtered digital outlets, with a capacity of 1800 Watts/15 Amps. Unlike transformer-based conditioners, it uses a unique multi-segmented lossy transmission mechanism with select magnetic materials to reduce RFI/EMI without inductive coils, ensuring full current delivery and uncompromised dynamics. The unit provides 210 joules of surge capacity and 18,000 amperes surge protection. Users report improvements in musicality, soundstaging, transient resolution, dynamic contrast, and frequency response. It also effectively isolates analog and digital components to reduce negative interactions. The CLS-6400 ISO is suitable for most power-hungry systems and is noted for not producing hum or limiting dynamics. It was introduced circa 1999 and originally The unit is transformerless and includes quick-acting Metal Oxide Varistors (MOVs) for energy clamping and protection. It is highly regarded in audiophile reviews for its ability to reduce background noise and improve bass and overall system tightness without damping dynamics.