The S4 Evo is our refined take on a timeless design, drawing inspiration from the legendary guitars that emerged from Fullerton in the 1950s and 60s. While our refinements may seem subtle at first glance, they result from years of experience playing and building these instruments. Think evolution over revolution—small improvements that add up to a more responsive, resonant, and comfortable guitar.

One of the key upgrades is the threaded bolt neck construction, which provides enhanced stability and sustain—rivaling any set-neck design while retaining the adjustability and practicality of a two-piece system. A rolled fretboard, slightly deeper lower cutaway, and chamfered armrest further refine the playing experience, ensuring comfort whether you're on stage or in the studio.

Built for You

At Karl Longbottom Guitars, we believe in crafting instruments that match your vision—even if you’re not entirely sure what you’re looking for. Whether you want to replicate a hero’s guitar or refine details based on years of playing experience, we work with you to create a guitar that feels like an extension of yourself. The S4 Evo embodies that philosophy, offering a versatile, finely tuned instrument that adapts to the needs of serious players.

Tonewoods & Sound

The S4 Evo is available in both Swamp Ash and Alder, each offering distinct tonal characteristics:

Swamp Ash is bright and resonant, with a slightly scooped midrange and excellent sustain. It’s a bit harder than Alder, which contributes to its crisp attack and dynamic response. Alder, on the other hand, offers a balanced, full-bodied tone with a medium bass response and strong mids—providing a warm yet articulate foundation that sits well in a mix. It remains lightweight yet sturdy, making it a fantastic choice for lead players seeking clarity and punch.

We use the best hardware to make sure that your guitar is always at its best. The Radioshop ID set is our choice for increased dynamics, warmth and to capture that 50’s sound. The small details add up and that's why we use Paper In Oil Caps, CTS Pots and a Switchcraft Jack and a five way control switch.

From: £2300

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