Hey George........
I have to agree with you there........a lot of the volume is controled by the sound tech guy.........now the problem is not always the machines, but the sound guy himself...... sometimes we don't get very good ones, or ones that know what they are doing...... As a singer........all we hear are the monitors on stage........which are speakers that are facing us.........that is not necessarily what is playing out into the theatre........so we can't control how loud it sounds out there.........when we hear it, it sounds perfect on stage................
cheers
Jay principal singer on 4 major cruise ships........