Like FAT mids and a great high end sparkle? This is our ECC803S V1 Option Retube Kit for the Orange Dual Terror. It contains a matched quad of JJ EL84's for power, two JJ Long Plate ECC803S's for V1 and V3 and two current balanced ECC83S's for the phase inverters in V2 and V4. Just let us know in the comments section if you're looking for an early breakup, a moderate breakup or a later breakup for more headroom in which case we will choose the coolest grades we have available for the power tubes.