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

Control rooms:
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

Facilities in the Anichkin palace
Hall dimensions: 15 x 8 x 6 metres.
Standard reverberation time: 1.0 sec/1000 Hz
Control room D: area 20 sq.m.