Compared to the Instruments by Peter Kobliczek the bore of these recorders has a significantly wider diameter. The window is bigger and the windway is wider.
This leads to a very different sound. With their characteristics these Instruments are more similar to medieval recorders, while the Praetorius-Model by Peter Kobliczek is rather modelled after the construction guidelines of the late renaissance.
recorders from: Sebastian Virdung, Musica getutscht, 1511