Diamond Amplification HERETIC - 100W Tube Amplifier

Diamond Amplification Heretic – Defiant, High-Gain Power

The Diamond Heretic is unapologetically bold — built for guitarists who thrive on aggression and precision. With rugged, no-compromise construction, this 100W tube amplifier delivers massive gain, tight lows, and razor-sharp highs that hit with authority, whether on stage or in the studio. Sharing the DNA of the Spitfire II but taking the intensity further, the Heretic combines a pristine clean channel with two high-gain voices that demand attention.

Channel 2 features Diamond’s signature dual volume/gain design, letting you instantly switch between two levels of gain. Effortlessly move from crushing rhythm riffs to searing leads, or dial in nuanced staccato tones without losing punch. A rear-panel Depth control fine-tunes low-end resonance, giving you ultimate flexibility to sculpt your attack and feel.

Beyond tone, the Heretic looks as fierce as it sounds. Red LED glow, steel grilles, metal knobs, and a bold etched zinc logo give it stage presence. Hand-selected tubes and premium components ensure reliability that matches its destructive sonic character. Fully foot-switchable and loaded with modern features, the Heretic isn’t just an amp — it’s a statement.

Key Features

• 100W Tube Power: 4 × EL34 power tubes and 6 × 12AX7 preamp tubes for massive, dynamic gain

• Two Independent Channels: Channel 1 – Clean, Channel 2 – Crunch/High Gain

• Full Tone Control: Volume, Gain, Bass, Middle, Treble, Presence on both channels

• Dual Volume/Gain on Channel 2: Switch between two gain levels instantly for rhythm or lead

• Rear Panel Depth Control: Fine-tune low-end resonance and attack

• Fully Footswitchable: Includes 2-button footswitch for channel and gain switching

• Ohm Selector: 4, 8, or 16-ohm output for flexible speaker pairing

• Distinctive Red LED Stage Glow: Bold front grille and etched zinc logo

• Effects Loop: Properly designed tube-driven loop with shorting jack and front-panel Return control

• Premium Components: Hand-picked tubes and spec-tested components for reliability

• LED Indicators: Shows active volume/gain and engaged boost

Who Is It For?

The Heretic is built for serious guitarists, metal and hard-rock players, and tone-seekers who demand high-gain aggression without sacrificing clarity or responsiveness. Perfect for stage warriors and recording professionals alike, it gives total control over every note while projecting unmistakable presence.

Tech Specs

Core Specifications

• Power Output: 100 Watts
• Amplifier Type: All-tube
• Channels: 2 (Channel 1 – Clean, Channel 2 – Crunch/High Gain)
• Preamp Tubes: 6 × 12AX7
• Power Tubes: 4 × EL34

Tone & Controls

• Channel Controls: Gain, Volume, Bass, Middle, Treble, Presence
• Global Controls / Features: Master Volume, Depth Control, Dual Volume/Gain, Effects Loop Return Control
• Independent LED Indicators: Channel active, Gain active, Boost engaged

Connectivity

• Speaker Outputs: 4-ohm, 8-ohm, 16-ohm selectable
• Effects Loop: Yes
• Footswitch Support: Yes (2-button included)

Construction & Components

• Chassis: Rugged steel with protective grilles
• Knobs / Hardware: Metal knobs
• Components: Individually spec’d and tested by Diamond
• Finish / Lighting: Signature red LED glow with etched zinc logo