Headbox for a machine for producing a fibrous web and method for making a fibrous web

The invention relates to a headbox (1) for a machine for producing a fibrous web with at least one distributor device (2) for distributing a fibrous suspension (3) into part-streams (T The headbox according to the invention (1) is characterized in that the respective edge-side means (9.1, 9.2) at least one preferably adjustable feed system (10) for at least one fluid (11), which comprises at least one fluid (11) is preferably only a marginal turbulence channel (5.1) feeds.