...well, while I do have issues with USA Tube (misrepresents competing vendor gear & did not stand behind two of his uber expensive fizzed Ayon KT88s) ...The Ayon gear I bought (CD-07 & Ayon KT88-based Ayon Triton III) is remarkably well made and it sounds it too. On both sales, I eventually got the product for a good discount. ...The price to pay was after the sale when 2 tubes fizzed within 2 months, but all seems well now and my audiophile friends are digging it too.