Matt Quilter is Pat's younger brother. Lifelong supporter and strictest critic, Matt is the inspiration behind many if not all of Pat's creations. "Watching my younger brother grow into his art during the heady days of the late sixties was the primary factor in my decision to tackle guitar amplification and try to become 'the power behind the throne'" Pat Quilter recalls. "Matt's ear for tone, his articulate criticism, and his ability to play all the iconic rock solos really helped me identify the elements of great electric guitar tone". Matt has followed his passion and worked in music his entire career. Like many current musicians, Matt performs in multiple acts, including tribute band Jumping Jack Flash ("wigs, wardrobe, make-up - the full catastrophe"), the Surftones with Kerry Chester, original instrumental band The Reventlos ("Buy our CDs now!") and is also a performance-based  musical historian, using his Wave Machine solo act to illustrate Southern California's own musical genre of Surf Music. In addition to his duties on guitar, he co-produced the documentary DVD feature Pounding Surf! an insider's look at the SoCal surf music scene from 1961 to the present day.

Asked why he plays Quilter amps, he responds "because they gave me one!" In all seriousness, he will tell you that the current crop of Quilter amps does everything he could ask for tonally, finally winning him away from the hand-built Quilter tube amp that he played exclusively for 40 years. The JBL-equipped "Mazion Special" has been honorably retired to the Quilter Labs museum, replaced by a MicroPro-8, occasionally supplemented with an Extension Cab, along with a collection of prototypes and experimental models. In addition to serving as a beta-tester, Matt will be the first to insist that the bass guitar was never meant to have more than four strings, and the last to explain why "Tall Oaks from Tiny Acorns Grow".