Blast Radius Is Lachlan Hessing - Synths Effects Percussion Ryan Brewster - Guitars Effects Originally Starting Out As A Solo Project Blast Radius Was Lachlan's Musical Outlet For The Best Part Of Six Years. Adopting The Blast Radius Name In 2007 The Project's Distinctive Sound Has Slowly Evolved To The Point It Is At Now. Ryan Came On Board Later As Guitarist Adding A New Dimension To The Mix. The Pair Continue To Expand.