With the new Tube Zone, you can dial in your sound, regardless of the equipment you have to work with. Also, the mid switch has evolved into a continuous midrange control. This allows perfect setting for the mids. If these 6 external controls weren't enough (Gain, Tone, Volume, Character, Mids, Brightness), a seventh 'presence' trimmer was added to adjust the overall balanace and sparkle of the Tube Zone.