Casti OPPO PM-2
Amplificator de Casti Aune X1s 32BIT/384 DSD128
The advantages of planar magnetic
technology are based on the fact that in a planar driver, sound is
generated by a very thin and light diaphragm that is driven evenly over
the entire radiating area. Sound, entering our ear, has a planar wave
front at the so called ear reference point (ERP), with all spectrum
components in phase. A typical dynamic headphone driver, due to its
phase irregularity, disrupts that coherence, resulting in less than
perfect signal peak reconstruction, especially of very short impulses. A
planar magnetic driver has another advantage that relates to its purely
resistive impedance. It has a flat conductor pattern that does not have
any inductive component, which eliminates inductance related IM
distortion, common in dynamic headphones. A resistive load also ensures
that any amplifier will drive the headphones without any changes in
OPPO uniquely integrates many innovations and proprietary methods developed over the years with the latest breakthroughs in materials and manufacturing techniques. Results of this research, focused on eliminating issues affecting many planar magnetic headphones, such as low sensitivity, weight, insufficient diaphragm stability, consistency and reliability, have been implemented in this new technology. The OPPO planar magnetic headphone uses an FEM optimised magnet system with very high energy Neodymium magnets. A large oval planar diaphragm is positioned in an evenly distributed symmetric magnetic field. The diaphragm has a spiraling pattern of flat conductors etched on both sides of a very thin polymer film. The magnetic system and conductor patterns are optimized for maximum driving force (sensitivity) and consistency of the applied force over the radiating area. The double-sided diaphragm has 7 layers of extremely thin materials, each doing a specific job for best performance, reliability and longevity.
These advantages of OPPOâ€²s high resolution planar magnetic technology and advanced headphone design provide for a very open, transparent, and highly dynamic sound that exhibits well-balanced tonal qualities with vanishingly low distortion, resulting in a headphone that communicates every nuance of your favorite music and ensures a high level of emotional engagement. With its industrial fit and finish, the PM-2 is equally at home in an audiophile hi-fi system or on the go with a high resolution portable device.
Phase Coherence - 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. OPPOâ€²s
planar magnetic driver has much better phase coherency since all parts
of the diaphragm are vibrating in concert without break up and delayed
Purely Resistive Impedance âˆ’ OPPOâ€²s 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 âˆ’ 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-2â€²s manufacturing process, drivers are closely matched to ensure optimum stereo imaging and soundstage.
Diaphragm âˆ’ OPPOâ€²s 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 âˆ’ The diaphragm utilises a spiralling pattern of flat aluminium 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-Optimised Magnet System - An FEM-optimised magnet system with very high energy Neodymium magnets is used to maximise sensitivity and consistency of the applied force over the driver area.
High Sensitivity - 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.
Build Quality âˆ’ 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 lifespan.
Comfort - 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.
Quality Materials âˆ’ The OPPO PM-2â€²s 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 ear pads are made of carefully selected synthetic leather material.
Easily Replaceable Components âˆ’ The OPPO PM-2â€²s ear pads are mounted on rubber inserts that can be easily cleaned or replaced. This design maintains compatibility with the PM-1â€²s ear pads and makes trying out the PM-1â€²s 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.
Premium Accessories âˆ’ 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 the go.
Selvedge Denim Carrying Case âˆ’ 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-2â€²s ability to fold flat, allowing the headphones to fit easily within a backpack or briefcase.
- Super low jitter ascyronous data transfer
- Latest XMOS + ESS9018 cricuit frame
- Support USB2.0 with provided driver for Windows and no driver required for Mac
- Enhanced Op-Amp + Buffer amplifier frame with indepenent positive and negative power supply
- Outboard power supply to keep internal noise / interference lowest possible
-Versatile - used as standalone DAC or Headphone Amplifier with high driving ability for most headphones