Grounding Instructions - Alesis Studio 12R Reference Manual

indicates that this information is vital when operating the Studio
12R.

Grounding Instructions

This product must be grounded. If it should malfunction or break
down, grounding provides a path of least resistance for electric
current to reduce the risk of electric shock. This product is equipped
with a cord having an equipment-grounding conductor and a
grounding plug. The plug must be plugged into an appropriate
outlet that is properly installed and grounded in accordance with all
local rules and ordinances.
DANGER - Improper connection of the equipment-grounding
conductor can result in a risk of electric shock. Check with a
qualified electrician or serviceman if you are in doubt as to whether
the product is properly grounded. Do not modify the plug provided
with the product; if it will not fit the outlet, have a proper outlet
installed by a qualified electrician.
Studio 12R Reference Manual
Introduction
6