The Vivids are able to reproduce dynamics with startling realism, and are able to scale with any music at any sane volume level. Bass is not only deep, but physically impactful, with the ability to start and stop on a dime. Play your favorite Led Zeppelin cut and crank the volume level past where most speakers fail and you’ll have an experience that may be unique in high-end audio. Dial back the volume control and play some intimate jazz, recorded live at your favorite club—you’ll hear details you never knew were captured on the recording. The cool part of the Vivid G1S speaker experience is this: a pair of G1 Spirits can create these almost polar opposites of fine music reproduction, but they can also do everything in between with equal measure. As part of the Ultra Reference System, they ensure that the speakers are never the limiting factor in the review process.