FYI, if you're seeing 110 volts across these devices, then one of your voltage legs has a wiring fault. Power systems in Europe tend to use balanced power, which puts half of the total line voltage on each voltage leg. This sounds very much like one of the legs is going directly to ground, which is a serious -- and potentially dangerous -- problem. Again, I cannot more highly stress the need for ground fault testers to be part of any electronic musician's "must-haves", both for studio use and to check live venue power situations.
-- Lugia
I do not know how it is in other countries, but here in the Netherlands we have 1 Phase : 220/230 Volt and a zero wire to the sockets, and another earth connection for 3 prones plugs.
In the 70-er years it was normal to have 2x 110 (even 127V i think ) phases to the sockets, but that only is normal in older parts of towns, but the modern houses have 0/220 wires..