Don’t be fooled by his poppy love songs or tabloid persona —John Mayer is a well respected player with some serious chops and tone to die for. Premier Guitar recently hooked up with his tech Rene Martinez—former tech for Stevie Ray Vaughan, Prince, and Mick Jones—before their show in Tinley Park, IL. This guys got an impressive collection of gear, but what we’re most interested in is the Way Huge Aqua Puss Analog Delay that we caught a glimpse of in the video. This highly coveted-crème de la crème of analog delay pedals has been seen on many guitar legends arsenals, it’s perfect for adding some sweet and subtle tape echo effects for just the right amount of richness to solos. John Mayer deemed it one of his “tone secrets”, check it out in the video below.