The Marshall JCM800 Modified builds on the legacy of the iconic JCM800, a staple of rock and metal, by introducing modern refinements while preserving its unmistakable tone. Originally a go-to amp for bands like AC/DC, The Ramones, and Guns N’ Roses, the JCM800 remains a benchmark for powerful, high-gain sound. This modified edition enhances the amp’s legendary tonal flexibility with new features tailored for today’s guitarists. A gain boost switch delivers added sustain and saturation, while a mid-boost option increases presence and warmth, allowing solos to stand out effortlessly. The tight switch refines low frequencies, ensuring clarity for drop tunings and high-gain riffing. Designed for versatility, the JCM800 Modified transitions seamlessly from warm, dynamic breakups suited for blues and classic rock to aggressive, commanding tones for modern metal. Its single-channel layout, paired with a switchable effects loop, allows players to integrate their pedals and external gear effortlessly. Handcrafted in Bletchley, England, this amp upholds Marshall’s commitment to quality craftsmanship. Whether on stage or in the studio, the JCM800 Modified provides the tonal control and sonic power needed to shape your sound with precision.
The Marshall JCM800 Modified builds on the legacy of the iconic JCM800, a staple of rock and metal, by introducing modern refinements while preserving its unmistakable tone. Originally a go-to amp for bands like AC/DC, The Ramones, and Guns N’ Roses, the JCM800 remains a benchmark for powerful, high-gain sound. This modified edition enhances the amp’s legendary tonal flexibility with new features tailored for today’s guitarists. A gain boost switch delivers added sustain and saturation, while a mid-boost option increases presence and warmth, allowing solos to stand out effortlessly. The tight switch refines low frequencies, ensuring clarity for drop tunings and high-gain riffing. Designed for versatility, the JCM800 Modified transitions seamlessly from warm, dynamic breakups suited for blues and classic rock to aggressive, commanding tones for modern metal. Its single-channel layout, paired with a switchable effects loop, allows players to integrate their pedals and external gear effortlessly. Handcrafted in Bletchley, England, this amp upholds Marshall’s commitment to quality craftsmanship. Whether on stage or in the studio, the JCM800 Modified provides the tonal control and sonic power needed to shape your sound with precision.
Marshall JCM800 Modified 100W Valve Guitar Amp Head
The Marshall JCM800 Modified builds on the legacy of the iconic JCM800, a staple of rock and metal, by introducing modern refinements while preserving its unmistakable tone. Originally a go-to amp for bands like AC/DC, The Ramones, and Guns N’ Roses, the JCM800 remains a benchmark for powerful, high-gain sound. This modified edition enhances the amp’s legendary tonal flexibility with new features tailored for today’s guitarists. A gain boost switch delivers added sustain and saturation, while a mid-boost option increases presence and warmth, allowing solos to stand out effortlessly. The tight switch refines low frequencies, ensuring clarity for drop tunings and high-gain riffing. Designed for versatility, the JCM800 Modified transitions seamlessly from warm, dynamic breakups suited for blues and classic rock to aggressive, commanding tones for modern metal. Its single-channel layout, paired with a switchable effects loop, allows players to integrate their pedals and external gear effortlessly. Handcrafted in Bletchley, England, this amp upholds Marshall’s commitment to quality craftsmanship. Whether on stage or in the studio, the JCM800 Modified provides the tonal control and sonic power needed to shape your sound with precision.
The Marshall JCM800 Modified builds on the legacy of the iconic JCM800, a staple of rock and metal, by introducing modern refinements while preserving its unmistakable tone. Originally a go-to amp for bands like AC/DC, The Ramones, and Guns N’ Roses, the JCM800 remains a benchmark for powerful, high-gain sound. This modified edition enhances the amp’s legendary tonal flexibility with new features tailored for today’s guitarists. A gain boost switch delivers added sustain and saturation, while a mid-boost option increases presence and warmth, allowing solos to stand out effortlessly. The tight switch refines low frequencies, ensuring clarity for drop tunings and high-gain riffing. Designed for versatility, the JCM800 Modified transitions seamlessly from warm, dynamic breakups suited for blues and classic rock to aggressive, commanding tones for modern metal. Its single-channel layout, paired with a switchable effects loop, allows players to integrate their pedals and external gear effortlessly. Handcrafted in Bletchley, England, this amp upholds Marshall’s commitment to quality craftsmanship. Whether on stage or in the studio, the JCM800 Modified provides the tonal control and sonic power needed to shape your sound with precision.
in 9 offers
The lowest price for Marshall JCM800 Modified 100W Valve Guitar Amp Head right now is $4,640.91 at Reverb, compared across 8 retailers.
The all-time low was $4,368.15 on 27 May 2026 — today's price is 6% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 27 July 2026.
Last updated at 27/07/2026 05:38:39
Marshall JCM800 Modified 100-watt Amplifier Head Tube Guitar Amp Reissue 2026
Delivery $538.94
Marshall JCM 800 2203MS Modified 100w Head 2025 - Black
14-day returns
Marshall JCM800 Modified 100w Valve Guitar Amp Head
Free delivery between 29 July – 4 Aug
Marshall JCM800 Modified 100W GuitarAmp Head
Delivery between 27 July – 10 Aug $54.91
Marshall JCM800 Modified Guitar Amplifier 100w Head Amp
Free delivery
Marshall JCM800 Modified 100-watt Tube Head
Free delivery
Marshall JCM800 2203MS Modified Guitar Amp Head
Delivery $10
Marshall 2203MS Modified JCM800 100W Head
Delivery between Thu – Sat $20
Marshall 2203 JCM800 Modified 100W Valve Amp Head
Delivery $33
| Instrument | Electric |
| Wattage | 100w |
| Speaker Impedance | Switchable |
| Output wattage | 100W |
| Technology | Tube |
Marshall JCM800 Modified 100-watt Amplifier Head Tube Guitar Amp Reissue 2026
Delivery $538.94
Marshall JCM 800 2203MS Modified 100w Head 2025 - Black
14-day returns
Marshall JCM800 Modified 100w Valve Guitar Amp Head
Free delivery between 29 July – 4 Aug
Marshall JCM800 Modified 100W GuitarAmp Head
Delivery between 27 July – 10 Aug $54.91
Marshall JCM800 Modified Guitar Amplifier 100w Head Amp
Free delivery
| Instrument | Electric |
| Wattage | 100w |
| Speaker Impedance | Switchable |
| Output wattage | 100W |
| Technology | Tube |