At Signal Theory Audio, we are extremely passionate about great guitar tone and gear. We create premium presets and captures, designed to emulate our collection of amplifiers and pedals, as well as artist inspired presets.
HOW IT STARTED
We started creating content for YouTube in 2008 on our other channel – Worship Tutorials. It mostly began with worship song play through and tutorial videos, but over time we began making content around guitar gear, and ultimately started creating and selling presets for popular modeling devices like the Line 6 Helix.
Over the years, we have delivered over 850,000 preset downloads through Worship Tutorials.
In 2025, we decided to split our gear content and presets off into a new brand: Signal Theory Audio. This will allow us to focus solely on creating the best possible guitar presets and gear content, while allowing our original vision at Worship Tutorials to shine.
We are so glad you’re here, and we cannot wait to share our love of tone with you.
WHO WE ARE
BRIAN WAHL
Brian started playing guitar around 15 years old, and quickly became involved in church worship settings. In 2008, Brian founded Worship Tutorials, posting hundreds of play through and tutorial videos of popular worship songs, and his love of guitars, amps, and gear has grown ever since.
Interesting facts about Brian:
- He majored in Chemistry and Biology in college.
- Brian grew up in Fairview, OK, population 2500 (and shrinking)
- Favorite Amp: 1994 Matchless C-30
- Favorite Guitar: The next one (also his MJT Thinline Tele)
- Brian is married to Angie, they have a son named Seth and a cat named Umberto
BRADFORD MITCHELL
Bradford has always been a “take-it-apart-to-see-how-it-works” kind of guy. When he picked up the guitar in middle school, he applied that same mindset—breaking down his favorite riffs and recreating the tones of his guitar heroes. Combined with his passion for teaching, this made Worship Tutorials (and now Signal Theory) the perfect outlet for his energy.
Interesting facts about Bradford:
- He majored in worship and music ministry with a concentration in guitar in college.
- As a military kid, Bradford had lived in more places by the age of 13 than most people would in three lifetimes.
- Favorite amp: Marshall Super 100 JH
- Favorite guitar: Shelton Skyflite
- Favorite pedals: Browne Protein, Chase Bliss Gravitas, Strymon El Cap
- Bradford is married to Kalie, they have a son named Logan and a daughter named Miller and currently live in Raleigh, NC
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