3
Introduction
Congratulations!
You
are
now
the
proud
owner
of
a
pair
of
truly
portable
closed
‐
back
planar
magnetic
headphones.
The
OPPO
PM
‐
3
utilizes
a
planar
magnetic
driver
that
is
developed
from
the
driver
in
our
EISA
award
‐
winning
PM
‐
1
headphones.
Technological
breakthroughs
achieved
during
the
PM
‐
1’s
development,
such
as
the
7
‐
layer
double
‐
side
voice
coil
diaphragm
design
and
FEM
‐
optimized
neodymium
magnet
system,
have
enabled
OPPO
to
reduce
the
weight
of
the
planar
magnetic
drivers
while
maintaining
excellent
sound
quality
and
high
sensitivity.
The
PM
‐
3
driver’s
smaller
size
and
high
sensitivity
make
it
especially
suitable
for
portable
use,
and
this
driver
would
not
have
been
possible
without
the
breakthroughs
achieved
in
the
PM
‐
1’s
driver
design.
In
the
PM
‐
3’s
planar
magnetic
driver,
sound
is
generated
by
a
very
thin
and
light
diaphragm
which
is
driven
in
a
symmetric
pull
‐
push
manner,
and
the
magnetic
system
and
conductor
patterns
have
been
optimized
for
maximum
sensitivity
and
consistency.
This
allows
the
diaphragm
to
generate
very
stable
and
linear
piston
‐
like
vibrations,
ensuring
phase
coherence
and
high
resolution
performance
with
minimal
distortion.
Featuring
a
light
weight
closed
back
design
and
easily
driven
with
any
smartphone
or
portable
music
player,
the
PM
‐
3
headphones
will
enable
you
to
enjoy
your
favorite
music
anywhere
while
being
isolated
from
outside
noise.
We
are
proud
of
the
work
we
have
put
into
these
headphones,
and
we
hope
they
bring
you
years
of
enjoyment.
Summary of Contents for PM-3
Page 1: ...PM 3 User Manual Planar Magnetic Headphones ...
Page 10: ......