I have a Modwright balanced output analog upgrade to my Oppo 205. I rolled rolled Telefunken 6DJ8’s into it and it was a big upgrade from the Electro Harmonix it came with. Very warm and inviting luscious sound. I then rolled NOS 75 6n23P Silver Shields in and they are superb. They produce a fast, detailed yet musical timber. The soundstage is wide and deep. Absolutely superb if you prefer fast and detailed yet musical vs a warmer somewhat slower more forgiving lush sound. If you like warmer I’d go with NOS Telefunken 7308’s or 6922’s.
Good luck!
Good luck!