The OS in Schlagwerk’s Precise OS and Urban OS stands for Open Sound and fully screwed playing surface. Nodal points for the screws to not interfere with the vibrations were determined. This leads to an extremely direct snare response. Bars on the inner sides boost the strong bass in the OS models without interfering with the sensitivity of the snare response. In general, the Precise and Urban models birch body does carry a certain fundamental frequency response. Birch’s sonic properties boost low and high frequencies attenuating the mid frequencies. The Precise OS Cajon particularly inspire with a broad, dynamic range: starting with a soft, very delicate snare sound response, which when played louder offers a great, rounded character and then ranging up to a well-balanced bass.
