RockwellThe ampsandsound Rockwell brings the legendary Direct Heated Triode sound to personal audio. We chose the 6B4G as it stand tall next to other top shelf triodes while still being accessible in NOS form. Combining a single gain stage, zero feedback, and careful attention to grounding techniques, we can use a the Large 6B4G Triode with headphones without hum or noise. The 2022 Rockwell ushering in use of Hum Pots, variable input transformers and our huge