Marshall 2203 JCM800 Modified 100W Valve Amp Head

Marshall 2203 JCM800 Modified 100W Valve Amp Head

Marshall 2203 JCM800 Modified 100W Valve Amp Head - 2203 JCM800 Modified 100W Valve Amp Head

Loading product options

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.

Features

  • 100-watt all-valve amp delivering classic Marshall high-gain tone
  • Single-channel design with two independent inputs
  • Gain boost switch for additional sustain and saturation
  • Mid-boost switch to enhance midrange clarity
  • Tight switch to refine low frequencies for a punchy sound
  • 3-band EQ with treble, middle, bass, and presence controls
  • Series effects loop with switchable send/return
  • 2 x ECC83, 1 x ECC83 (phase splitter), and 4 x EL34 valves
  • Selectable speaker output impedance (16?, 8?, 4?)
  • Handcrafted in Bletchley, England
  • Weight: 20.3 kg / 44.8 lbs
  • Dimensions: 746 mm (W) x 304 mm (H) x 214 mm (D)