I had both the Rel Storm III and the Sunfire Signature. The Rel wouldn't go low enough to really augment the bass of my Merlin VSMs, and it didn't blend very well with them. I never could get it to mate very well with the Merlins, and sold it. I bought the Sunfire for my Home Theatre, thinking the same as Samski. I was shocked to find that the Sunfire was better. It was far more dynamic and went way deeper. It was also much easier to place because of it's size. The Sunfire was absolutely seamless when crossed over under 50 hz.