Used Universal Audio KNUCKLES Guitar Preamp

Used and in good condition, the Universal Audio KNUCKLES Guitar Preamp offers a reliable, studio-grade solution for guitarists seeking authentic analog tone and responsive performance. Featuring high-voltage Class A circuitry and dual 12AX7 tubes, it delivers warmth, clarity, and dynamic nuance that enhance both live and studio setups. Its intuitive tone-shaping controls—gain, EQ, and output level—allow for precise tonal adjustments, while Hi-Z and balanced outputs ensure compatibility with a wide range of gear. With fully functional electronics and only minor cosmetic wear, this trusted pre-owned unit provides professional-quality sound with the added value and dependability of Universal Audio engineering.