** THIS ITEM IS A DEMO - Full Manufacturer's Warranty **
Oppo PM-2 Planar Magnetic Headphones
Unique Seven-Layer Diaphragm, Double-Sided Spiraling Coils, and
FEM-Optimized Magnet System: Transparent-Sounding Oppo PM-2 Headphones
Boast Advanced Technology and Great Comfort
OPPO's PM-2 Planar Magnetic headphones are characterized by a
distillation of key acoustic and industrial design features from the
OPPO PM-1 into a more affordably priced model. Similar to OPPO PM-1, PM-2 is
characterized by its natural, dynamic, and engaging sound quality. An
emphasis on user comfort and the phone's reduced weight ensure that PM-2
remains non-fatiguing and easy to wear. PM-2 also uses the same
driver as PM-1, and includes many of the same technological
breakthroughs, including the use of a unique 7-layer diaphragm,
double-sided spiraling coils, and an FEM-optimized magnet system.
Planar Magnetic Technology
The OPPO PM-2 utilizes a planar magnetic driver that sets it apart from
the majority of headphones on the market. Sound is generated by a very
thin and light diaphragm whose entire surface area is evenly driven. The
diaphragm 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.
Unique to OPPO planar magnetic headphones is the use of a double-sided
diaphragm, which allows for twice as many conductors within the magnetic
field and eliminate any passive return zones where the conductors do
not work. This results in the use of 100% of the conductor length, which
in turn results in greater efficiency. In addition, the flat conductor
pattern eliminates inductance-related intermodulation distortion, common
with dynamic headphones, and the OPPO PM-2's purely resistive impedance
means that sound quality is unaffected by a headphone amplifier's
The OPPO PM-2 combines high sensitivity with low weight, allowing it to
be used freely with portable devices without requiring additional
amplification. Its circumaural, open back design provides the best in
sound quality and comfort, and the overall rugged construction ensures
that the headphones can withstand mechanical and environmental stress.
These aspects of the OPPO PM-2's design combine to provide a
transparent, highly dynamic sound that exhibits well-balanced tonal
qualities with very little distortion, resulting in a listening
experience that is both free of fatigue and capable of communicating
every nuance of your favorite music.
When sound enters our ear, it has a planar wave front with all spectrum
components in phase. A typical dynamic headphone driver disrupts this
coherence with its phase irregularity, resulting in less than perfect
signal peak reconstructions. OPPO's planar magnetic driver has much
better phase coherency since all parts of the diaphragm are vibrating in
concert without break up and delayed resonance.
Purely Resistive Impedance
OPPO's planar magnetic driver has a flat conductor pattern that does not
have any inductive components. This eliminates inductance related
intermodulation distortion, which is especially common in dynamic
drivers with high impedance and a high number of voice coil turns.
Stability, Consistency, Reliability
Many planar magnetic headphones have large balance deviations between
the left and right channels, and accurate stereo reproduction is
contingent on having a very close match between the left and right
channels. During the OPPO PM-2's manufacturing process, drivers are
closely matched to ensure optimum stereo imaging and soundstage.
OPPO's planar magnetic driver diaphragm has 7 layers of thin materials
that provide excellent performance, reliability, and longevity. The
construction of the diaphragm ensures that it is very stable under
thermal stress and vibration.
Double-Sided Spiraling Coils
The diaphragm utilizes a spiraling pattern of flat aluminum conductors
on either side of the driver. The double-sided design allows twice as
many conductors to be placed within the magnetic field, which leads to
higher sensitivity, better damping, and even drive force.
FEM-Optimized Magnet System
An FEM-optimized magnet system with very high energy Neodymium magnets
is used to maximize sensitivity and consistency of the applied force
over the driver area.
Many planar magnetic headphones have a sensitivity far below 100 dB and
require very powerful amplifiers to drive. The OPPO PM-2 has a
sensitivity of 102 dB, which allows it to pair well with both mobile
devices and scale upwards when used with high end headphone amplifiers.
OPPO PM-2 TestingBuild Quality
The OPPO PM-2 is ruggedly constructed with an emphasis on long term use
and maximum consistency from unit to unit. The headphones have been
tested to very high standards to withstand mechanical and environmental
stress in order to guarantee exceptional performance throughout its
Many planar magnetic headphones weigh over 500 g and are often viewed as
being uncomfortable. With a weight of 385 g, the OPPO PM-2 strikes a
delicate balance between weight, comfort, and elegant industrial design.
The OPPO PM-2's ear cushions are made out of the highest quality natural
latex, which is superior to and longer lasting than any chemically
formulated foam. It is naturally hypoallergenic, retains its mechanical
spring-like properties for much longer periods, and resists moisture
build up from sweating. The headband and earpads are made of carefully
selected synthetic leather material.
Easily Replaceable Components
The OPPO PM-2's earpads are mounted on rubber inserts that can be easily
cleaned or replaced. This design maintains compatibility with the
PM-1's earpads and makes trying out the PM-1's lambskin and velour
earpads nearly effortless. The headphone cable is detachable and uses
2.5 mm mono mini jacks to connect to the earcups, making it easy to
switch between the longer, 6.35 mm terminated cable for home use, and a
shorter, 3.5 mm terminated cable for portable use.
The 6.35 mm terminated headphone cable features Oxygen Free Copper (OFC)
construction wrapped in a black fabric sleeve. A slimline selvedge
denim carrying case is also included to allow for easy transportation on
Selvedge Denim Carrying CaseSelvedge Denim Carrying Case
The selvedge denim carrying case included with your OPPO headphones is
manufactured using vintage shuttle looms by a supplier for a number of
boutique clothing brands based in Europe and Japan. The material is a
stylish, high-end fabric that is prized for its ability to weather the
elements and develop a unique aesthetic character over time, and the
slim design of the case is a perfect match with the PM-2's ability to
fold flat, allowing the headphones to fit easily within a backpack or