Upgrading from the Soloist 3XP to the Soloist GT3 has been a truly transformative experience. The GT3 significantly surpasses its predecessor in both performance and sound quality. The clarity and resolution are noticeably enhanced, with greater definition in the mids and highs, while maintaining a full-bodied, rich low end. The GT3 offers a smoother, more refined presentation with improved instrument separation and depth, making every track feel more immersive. The power output is more robust, effortlessly driving even demanding headphones with authority. Overall, the Soloist GT3 takes the listening experience to new heights, offering a level of detail and musicality that makes the upgrade well worth it.