Seymour Duncan SFX-04 Twin Tube Mayhem 2008 – High-Gain Tube Preamp / Distortion (Excellent Cond. with Box, Manual & Original EU 16V AC PSU)

Up for sale is a rare, discontinued 2008 Seymour Duncan SFX-04 Twin Tube Mayhem in excellent aesthetic and perfect working condition. This is a beast of a high-gain preamp/distortion pedal, built like a tank and designed specifically for extreme metal, thrash, and death metal.Unlike standard digital or solid-state distortions, the Twin Tube Mayhem features a 100% pure tube signal path running at high voltage, powered by two premium USA-made Phillips Sylvania 6205 sub-miniature tubes. It delivers massive, organic distortion with incredible note definition and rich harmonics.Key Features:Real Tube Tone: Dual Phillips Sylvania 6205 military-spec tubes.Built-in Boost: Selectable 4dB or 8dB volume boost for solos via a dedicated footswitch.Mid-Scoop Switch: Choose between 600Hz (modern scooped metal) or 1.4kHz (classic heavy metal punch).True Bypass: Keeps your signal completely clean when disengaged.Condition & What's Included:The pedal is beautifully preserved with minimal signs of use. It comes as a complete collector's pack:Original Seymour Duncan Box (with matching serial sticker)Original Printed User ManualOriginal 16V AC Power Supply (European 2-pin plug)