Want all the crunch you can get? This is our High Gain Retube Kit for the Benson Earhart 15 Combo. It uses a two Handpicked High Gain ECC83S's and one ECC832 for the front end, a GZ34 Rectifier and a the default power tubes are a matched pair of the JJ EL84's. With the Customize option you can configure this kit to use the JJ EL844's which will drop the power output a couple decibels (ideal for players wanting decreased headroom/output).