A speaker tuned with Compression Guide becomes transparent like a pane of glass. Sound channels through it unencumbered by the impurities of the speaker itself. The process liberates sound from the boundaries of the speaker, allowing it to spread freely into open space. A boundless sound atmosphere is unveiled, where instruments, vocalists, and sound effects decorate the room around you. Master craftsmanship and premium components provide crystal-clear resolution and brilliant dynamics. Compression Guide tuning brings it all to life. The Compression Guide 25 is the latest breakthrough in our award winning lineage of speakers. It is artistry you experience.