Want all the gain you can get? This is our High Gain Option Retube Kit for the Epiphone Valve Special Combo Amps. It uses two handpicked High Gain ECC83S's for the front end and the default power tube is a single JJ EL84. With the Customize option you can configure this kit to use a JJ EL844 which will drop the power output a couple decibels (ideal for players wanting decreased headroom/output).