Mullard 12AU7 CV4003 Platinum Grade, Cryo Treated

I bought these as NOS from Upscale Audio for spares. After purchase, they were burned in for approximately 70 hours to ensure no early failures. I've decided to sell one of two sets of spare tubes to fund another audio toy.

Robert Levi of Positive Feedback posted a review of these tubes on the Upscale Audio website: "Look no further, these Mullard box plates are the ticket! In EAR, Cary, vintage gear like Scott and Mac, you can''t go wrong. Open, powerful, clean, elegant, musical, and smooth, these Mullards make the gear sing. The best 12AU7 I''ve used to date and I''ve used at least a dozen brands in the last year alone in reviewing. Get'm while you can. They are essential to maximizing the performance of your expensive goodies. Best high band and bass performance yet in a tube. Perfect."

Price includes shipping and PayPal