What? You want MORE gain from your 5150 II 50 watter? OK! This is our High Gain Option Retube kit for the Fender EVH 5150 III 50 Watter. It uses seven handpicked High Gain ECC83S's with one being current balanced for the phase inverter in V9 closest to the power tubes. The default power tubes are a matched pair of the JJ 6L6GC’s but you can configure this kit to use the JJ 5881’s by clicking on the "Customize" button!