How can I further improve the sound of my Symphonic Line with the right tubes?

With Symphonic Line, the main focus is on specifically optimizing the tube stages that are truly decisive for the sound. This applies especially to devices such as Erleuchtung, Erleuchtung Reference MK3 HD, Phono Preamplifier and Phono Reference HD. Especially here, a very careful selection is more worthwhile than a simple standard configuration. Anyone who wants to further improve the sound should above all pay attention to quiet, selected and tonally coherent tubes. This can often achieve more quietness in the soundstage, finer resolution and more natural reproduction.