The subject of power conditioners and line filters often resides in the category of audio tweaks. These are products that provide that last nth degree of performance and are usually found in high-end systems, and sometimes sell for premium prices. But in many cases, their benefits are undeniable. By taking on the task of power cleanup, the amplifier’s power supply can focus on the job of keeping the amp running at its peak. It’s a subtle effect to be sure but when you’ve already invested heavily in a premium audio system, it only makes sense to wring out every possible drop of performance.