A manufacturer of echo effects for music recording studios has built a prototype of an echo device that
sounds exactly like a beloved echo machine from the
1970s. Even though its computer chips are cheap, they
are hard to find because the compounds originally
used to make the chips are no longer being
manufactured.
What type of issue does the effects manufacturer need
to overcome in order to be able to mass produce this
echo device? availability
cost effectiveness
safety
time effectiveness