Just wanted to post my finished Cack project, as seen with the stock Doc supplied NOS tubes and also a RCA 6AS7 output tube. Finished the kit over a month ago but I've been too engaged listening & enjoying the music...so, finally got around to posting some pictures. Top plate is powder coated white and bell also is powder coated in satin black. Currently using a RCA clear top 12AU7 with the RCA 6AS7. As for the sound, with my Beyer dynamic DT880's (600_ohm)....Super sweet!! highs are smooth airy & detailed,