Using the Evolution® Bridge as the basic platform, the UtoPIA™ Bridge was designed to focus more on the low-end response of the guitar while adding thickness and body to the top end. The challenge was to still deliver the harmonics for which the Evolution® is known. Upper midrange frequencies were also dialed back to produce a less aggressive attack and provide more control. The UtoPIA™ Bridge boasts a big, bold low end, high output, and thick top end.