Case studies
Historical events used to explain large-scale sound reinforcement. Each case is built only from verifiable sources and is labelled as an educational reconstruction — never a replica of the real system.
In research · next stage
Metallica — Moscow, 1991
Topics it will illustrate: reinforcement for an extremely large open-air audience, propagation losses over hundreds of metres, why a single stage system cannot cover such a field, distributed systems and delay towers, arrival-time differences and their synchronisation.
No technical figures (equipment, power, audience size) are published here until they are sourced from verifiable references. Until then the Stadium and Outdoor event examples show the same physics with our own, clearly declared, assumptions.