Do you like FAT mids and a sparkling high end? This is our ECC803S V1 Option Retube Kit for the Bogner Alchemist Heads and Combo Amps. It uses a Long Plate ECC803S for V1 along with four ECC83S's with one being current balanced for the phase inverter in V5. 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.