BUGERA Amplifier Tube, White (ECC83B) The ECC83 is all about classic European tube tone which led to the famous British sound The BUGERA ECC83B is true to its classic roots and authentically designed to the original specs but with super-low audio and microphonic noise With its beautifully deep bass, articulate mids and soulful highs, it lends itself to styles such as blues, jazz, fusion and R&B where a rich and warm tone is desired If you find your amp too bright sounding with standard 12AX7s, the BUGERA ECC83B may be your tone solution