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Guitar Pedal X - GPX Blog - Vox's Valvenergy NuTube Mystic Edge AC30 style and Copperhead Drive JCM800 style Overdrive / Preamps are fairly decent budget options for those genres
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AMT Electronics M1 (Marshall JCM-800) Pedal PreAmp 30 Pedals Day #8 NAMM 2011 '11 M-1 - The Tone King
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AMT Bricks M-Lead JCM800 Emulate 1-Channel Tube Guitar Preamp: Amazon.co.uk: Musical Instruments & DJ
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