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. 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. 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. OPPO's planar magnetic driver has a flat conductor pattern that does not have any inductive components. This eliminates inductance related inter-modulation distortion, which is especially common in dynamic drivers with high impedance and a high number of voice coil turns. Many planar magnetic headphones have a sensitivity far below 100 dB and require very powerful amplifiers to drive. Hi-fi products do not need to look ugly, and stylish products do not need to sound mediocre.
It folds flat and comes with a selvedge denim carrying case. Users can choose the best suitable cable for their mobile devices. Available selections include a cable with mic and controls for Apple devices, one with mic and button for Android and Windows phones, and one without mic. Many planar magnetic headphones weigh over 500 g and are often uncomfortable to wear for more than a short period of time.The headphones have been tested to very high standards to withstand mechanical and environmental stress in order to guarantee exceptional performance throughout its lifespan. 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. Designs and specifications are subject to change without notice. 102 dB in 1 mW. 3 m detachable cable (3.5 mm with 6.35 mm adapter) 1.2 m detachable cable (3.5 mm). Output: 3.5 mm stereo jack Input: 6.35 mm stereo jack, 3.5 mm stereo jack. 320 g (Black/White), 310 g (Cherry Red/Steel Blue). 10 - 50,000 Hz. 500 mW according to IEC 60268-7. The item "OPPO PM-3 Closed-Back Planar Magnetic Headphones Brand New White Black Blue Red" is in sale since Thursday, September 10, 2020. This item is in the category "Consumer Electronics\Portable Audio & Headphones\Headphones". The seller is "extradingextrading" and is located in Taipei. This item can be shipped worldwide.