"Luke Siemaszko" wrote in
message


A pro amplifier designer of my acquaintance told me that
he hated IEC power inlets for amplifiers because he had
measured up to 7V drop across them in test.

Anyone else agree / disagree ?

I'm sure its happened with some combination of
inadequate/broken equipment and exceptional stress.

I've seen wall outlets cause signficant voltage drops, as
well.

The logical error is pretty obvious - few if any of us have
stopped riding in cars because one had an accident one day
not too long ago.

Another factor to consider - power amp designers tend to
spend a lot of time watching power amps perform an unnatural
act - deliver full power for an extended period of time. In
actual use, playing music that is unclipped, power amps on
the average draw only a fraction of their full power.

Most demands for full power while playing music are so short
that they have relatively small effects on the power that is
drawn from the power line. I

OW just because a power amp delivers max power for a loud
passage does not mean that maximum power was drawn from the
power line. Most of those transient needs are satisfied by
the power supply capacitors, not the power plug.