Mesa Boogie 5881 / 6L6 STR 425, Matched Pair limited-edition The Classic PRO continues Pedaltrain's

The Classic PRO continues Pedaltrain's trend toward an open front design making power supply and switching system mounting flexible and convenient

offering the ideal combination of bright

Mode and Bass

The Rainbow Machine can be used on bass

Channel 3 = Mark IIC+

Mesa Boogie 5881 / 6L6 STR 425, Matched Pair limited-edition The Classic PRO continues Pedaltrain'sThe MESA 5881 STR 425 is a military spec 6L6 power tube engineered for high voltage applications and long term reliability. Built to withstand demanding conditions, this tube excels in delivering bold low end, rounded mids, and a naturally subdued top endmaking it well suited to jazz, fusion, blues, and other styles where warmth and headroom are key. The STR 425 brings both tonal richness and structural integrity to older 6L6 based designs, offering