Thanks a lot for the answers. The name of the Cdp is Lua Appassionato, famous player and H Lua is an authority and I m not afraid that he could do wrong things. Last year he used Mullard Ecc83 valves, now for the actual upgrade he use the Brimar Mazda grey plate valves.
background of my question is a Test from watford valves, Derek Rocco. He Tested many valves, also the Brimar cv4004 and the Mazda greyplates, and that seems to be valves with a different sound. So there seem to be differences between Birmar valves and that is the reason I asked for the sound of theMazda ecc83 greyplates. Does anybody know this valves?
background of my question is a Test from watford valves, Derek Rocco. He Tested many valves, also the Brimar cv4004 and the Mazda greyplates, and that seems to be valves with a different sound. So there seem to be differences between Birmar valves and that is the reason I asked for the sound of theMazda ecc83 greyplates. Does anybody know this valves?