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Rosewell Custom 100W head (Simms-Watts replica)

Rosewell Custom 100W head (Simms-Watts replica)

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Page last updated Mar 31, 2026

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The Rosewell Custom 100W head, a meticulous Simms-Watts replica, offers guitarists the chance to plug into the storied past of rock 'n' roll amplifiers while enjoying the reliability of modern engineering. Renowned for its powerful sound and dynamic range, this amp head is a testament to the legendary tones that shaped music history.

Designed for musicians seeking that classic British tone, the Rosewell Custom 100W head captures the essence of the original Simms-Watts design. With its painstakingly recreated circuitry and hand-wired components, this amp head provides a robust platform for both live performances and studio sessions. Its transformer-based power supply ensures consistent delivery of the full 100 watts, offering plenty of headroom and clarity even at high volumes.

Whether you're chasing warm, clean tones or pushing the boundaries with overdriven grit, this amp head delivers. The intuitive control layout allows for precise tonal shaping, giving you the flexibility to sculpt your sound to perfection. Its rugged construction makes it a reliable companion for touring musicians, while its vintage-inspired aesthetics add a touch of nostalgia to any rig.

Key Features:

100-watt power output
Simms-Watts circuitry replica
Hand-wired components for authentic tone
Transformer-based power supply for consistent performance
Intuitive control layout for versatile sound shaping
Vintage-inspired design with modern reliability
Ideal for both live and studio environments

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Amp Type

tube

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Mateusz Piotrowski

Simms Watts AP100 with matching 4x12" demo on Bass Guitar

Mateusz Piotrowski

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Jamie Cook

Guitarist

Arctic Monkeys

Verified via Photo

Jamie Cook can be seen endorsing a flashy, Marshall-esque head and cabinet boasting the Simms-Watts logotype. However, the amp is, in fact, a replica of the original, built by Rosewell amps, who have a history with Arctic Monkeys. Cook is known to have played through other amps by the brand, such as the Bluesman 30 on the band's 2011 album, Suck It And See. On Rosewell's website, under the item listing for the "Custom 100W Head", the amp-makers explain: "Rosewell amps have worked extensivley with Arctic Monkeys guitarist Jamie Cook building an repairing many of their amplifiers. When Jamie Cook started having problems with his original 1970s Simms-Watt head, Rosewell Amplification helped him to find the solution. The original Simms Watt amplifier was built on a very thin chassis causing it to bend and break components when the band were moving the amplifier from gig to gig. Rosewell built a direct clone of the original Simms amplifier on a strengthened chassis and this now is Jamie's go-to amplifier should the original Simms have problems or the band have a punishing overseas shedule."