Esoteric G-05 Mode D'emploi page 6

About the transportation locking screws
For the purpose of improving the sound quality, G-05 is structured so
that the crystal oscillator (OCXO) unit attachment has some play.
For this reason, before shipment from the factory, transportation
locking screws have been attached through the bottom of the unit
to protect the crystal oscillator (OCXO) unit from vibration during
transportation.
Before installing the unit
Before installing the unit, remove the three transportation locking
screws.
o Save the transportation locking screws in a safe place because
you will need to reattach them before transporting the unit in the
future.
6
Transportation
locking screws
Before transporting the unit
Before transporting the unit, reattach the three transportation locking
screws removed when the unit was installed.