SLAM/Mastering SLAM Retube Kit Version A

This vacuum tube kit is only for Manley SLAM! units or Mastering SLAM! units with serial numbers that fall between SLAM001 - SLAM520 and MMSLAM001 - MMSLAM163. Includes (2x) 12AT7 tubes for input, (2x) 6414 or 12BH7 tubes for driver output. If you're unit previously had 6414's and want to replace them with 12BH7's you must recalibrate your unit. Please refer to your manual on how to do so. Be aware that some tube brands are subject to change over time and may not match the pictures shown.