Re-tube your Conrad Johnson Classic-2 and Classic-2SE Preamplifier with our specially selected vacuum tube sets. This package includes tubes for the high gain phone stage option. Our Conrad Johnson tube replacement kits are designed for your preamplifier and come in different option levels ranging from Upgrade to Premium to Ultimate.
We’ve been supplying tubes for Conrad Johnson preamps for over 20 years. Use our extensive knowledge, experience and customer feedback to select re-tube packages that will work great in your tube amp.