The Jimmy Page 1970 Royal Albert Hall sound THE STORY In January 1970 Led Zeppelin hit the stage of London's historic concert hall, Royal Albert Hall. At this performance Jimmy Page expressed himself masterfully with a broad pallet of tones and GIANT dynamic range. Of course this has a lot to do with Page's playing technique and Gibson Les Paul. His backline amps, custom Hiwatt heads into Marshall cabinets filled the entire hall with a cornucopia of colors at levels ranging from a mouse whisper to rave ups louder than a jumbo jet taking off only inches over your head. At Catalinbread we love the RAH performance, but we hadn't considered the possibility of capturing it to put into a pedal... One day our friend Charlie got ahold of Catalinbread's chief circuit designer Howard Gee to ask if we could do it. Charlie said that he'd been trying to get this tone for years and told Howard, if anybody could do it would be Catalinbread. Having proven his ability to capture the essence and experience of famous amplifiers, Howard began experimenting with what is now the RAH. OVERVIEW Overdrive inspired by the 1970 Royal Albert Hall performance. Authentic 3 knob tone stack from the Jimmy Page Hiwatt. Designed to give incredible dynamic response with your pick attack and your guitar's controls. Herco pick

Greasy vintage 50 s tweed THE STORY The Formula No. 5 was inspired by old tweed amps, most notably the 5E3 circuit. The character of the 5E3 is very unique. It has very minimal power filtering, low plate voltages, elemental tone stack, and does next to nothing to control the low end between gain stages, not to mention the under-rated output transformer and speaker. The entire system runs inefficiently resulting in a loose bass, greasy mids, cutting treble, and incredible grit none of these qualities were ideal or intentional back in the day. In spite of this, over the past five decades the amp inspired some of the coolest, most sought after guitar tones ever recorded. We ve captured the unique qualities of these amps in the Formula No. 5. For this circuit we felt cascaded JFET gainstages yielded the best result. They have a softer sound than MOSFETs. JFETs also have much more natural attack/decay than diode clipped rigs which are pingy on the attack and fizzy on the decay. We chose capacitor types that enhanced the midrange and burnished the treble OVERVIEW Tweed amp sound Tone circuit functions as a bright cap or treble rolloff depending on Gain. Great foundation for fuzzes and boosts.