It's no secret that Stevie played his amps cranked and preferred a little cleaner sound from the front end allowing you to hear more power tube breakup. Well, this works really well with the Black Pearl too! This kit uses a JJ 5751 for V1 which is in-between an ECC81 and an ECC83S in gain along with four ECC83S's one being current balanced for the phase inverter in V5. The kit includes a JJ GZ34 rectifier tube and the default power tubes are a matched quad of the JJ EL84's, however you can configure this kit to use the JJ EL844's for a slight reduction in power by clicking on the "Customize" button!
These are cathode bias amps with no adjustment so both the JJ EL84's and EL844's are plug and play.