The JCM800 Modified honors the original amp's iconic roots, while building on its legacy with modern features designed for today's guitarist. Seamlessly transition from smooth, warm breakup to commanding high-gain roars.

Inspired by guitarists, created by us
The JCM800 Modified's design is a celebration of musicians and gear enthusiasts who customize their amps. Marshall revamped the iconic JCM800 with modern features that help you carve out powerful tones.

Faithfully replicating everything you love about the JCM800
The Marshall JCM800 Modified pays homage to one of the most iconic amps in history, capturing everything guitarists loved about the original JCM800. With enhanced versatility, you have the tools to shape its legendary tone.

Added features
The gain boost switch provides extra gain and tonal flexibility for seamless transitions, while the mid-boost switch enhances mid-range frequencies, adding depth and clarity. The tight switch sharpens your tone by cutting low frequencies, ensuring every note rings out with clarity.

Longstanding commitment to craftsmanship
Skillfully crafted in our Bletchley, England factory, this amp captures the essence of Marshall's storied legacy while integrating modern features tailored to push sonic boundaries.

Features

• The gain boost switch delivers an extra level of gain and expanded tonal flexibility
  
• The mid-boost switch enhances mid-range frequencies, giving your tone extra warmth, depth, and clarity
  
• The tight switch is expertly designed to cut low frequencies to produce a clearer, more focused sound

Specifications

• Channels: Two (with shared EQ controls)
  
• Technology: Valve
  
• Output Wattage: 100W
  
• Speaker Outputs: 2 x 1/4" jack speaker outputs, selectable 16Ω / 8Ω / 4Ω load
  
• Preamp valves: 2 x ECC83, 1 x ECC83 (phase splitter), and 4 x EL34
  
• Controls: Treble, middle, bass, and presence
  
• Weight: 21 kg (46.3 lbs)
  
• Width: 741 mm (29.2")
  
• Height: 294 mm (11.6")
  
• Depth: 210 mm (8.7")