Facilities in the church of St Katherine built in 1763 by architect Yuri Velten.
The Great Hall:
Dimensions: 24 x 16 x 8.6 metres.
Frequency characteristics of reverberation time
A: area 89 sq.m.
B: area 19 sq.m
C: area 18 sq.m.
Two soundproof rooms: areas 16 sq.m. and 8 sq.m