High energy at your fingertips!

Our new Ultramag strings are made with type 52 alloy – a highly magnetic material made from 52% nickel and 48% iron. This blend gives Ultramag strings more power, sustain, and a longer string life than traditional nickel or steel strings.

Ultramag strings deliver a strong output with pronounced mid and low frequencies – perfect for powerful baselines and driving riffs.

We use type 52 alloy designed for use in the aerospace industry allowing Ultramag strings to maintain their tuning in the most extreme environments. To top this all off, type 52 alloy has corrosion resistant properties so your great tone keeps going for longer.

Rotosound Ultramag Electric Guitar Strings are available in Super-Light (UM9), Regular (UM10), and Medium (UM11) gauges.

Made with type 52 alloy

This high-end range uses a premium material to produce a stronger, longer lasting string with an unrivalled tone.

Type 52 alloy combines the excellent resonant properties and magnetic response of steel with the accentuated middle and bass frequencies offered by nickel.

British quality

Manufactured in the UK to precise tolerances and using only the finest materials, you can rely on Rotosound strings for consistent tone and performance in every packet.

Every Ultramag string is manufactured on custom built machines designed and built in the UK by Jason How.

is innovation continues Rotosound’s proud legacy of cutting-edge string design that started with our roundwound strings in the sixties.

Developed in conjunction with some of the world's top artists, Rotosound strings are synonymous with timeless tone, longevity and rock history.

Iconic music strings

Started in 1958 by James How, an engineer who made strings for his own instruments. By gathering the most prominent artists over the following decades from Jimi Hendrix to Pink Floyd, Jaco Pastorius to The Edge, Oasis to Guthrie Govan, Rotosound has been the go-to string for every music generation.