With the 1000+ model, we have modernized the worldwide standard French bore concept and thus found a solution for many sound and intonation problems. With the 1000+ model, we work with a bb’ correction with an additional resonance hole for bb’. This also allows the register sleeve to be reduced in size, the g’ hole to be repositioned and the tone holes for a flat and a’ to be enlarged. As a result, the lower section is slightly shortened in contrast to the Model 1000. The sound is more homogeneous through all registers, the short register sounds powerful, the chalumeau register is focused.The difference in color between the lower and higher registers of the Model 1000 is intentional – the sound is dark and fundamental in the lower registers and becomes brighter and more brilliant towards the top. This model is well suited for anyone looking for a light, flexible and easy-to-tune instrument whose mechanics require no further training or familiarization.