Oppo PM3 with Planar Magnetic Technology
The OPPO PM3 utilizes a planar magnetic driver that is developed from the driver the our EISA award-winning PM1 headphones. Technological breakthroughs achieved during the PM1’s development, such as the 7-layer double-side voice coil diaphragm design and FEM-optimized neodymium magnet system, have enabled us to reduce the weight of the planar magnetic drivers while maintaining excellent sound quality and high sensitivity. This driver would not have been possible without the breakthroughs achieved in the PM1’s driver design.
In the PM3’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.
The Oppo PM3 driver’s smaller size and high sensitivity overcome the shortcomings of traditional planar magnetic technology such as being difficult to drive and heavy weight. This all-new 55 mm diameter round driver is especially suitable for a lightweight close-back design like the PM3. The PM3 maintains the very natural and smooth sound signature of the PM-1, and is tuned to have deep, tight bass and a touch of excitement.
Read some excellent reviews online:
|Acoustic Principle||Closed back|
|Nominal Impedance||26 Ohm|
|Sensitivity||102 dB in 1mW|
|Clamping Pressure||5 N|
|Cables||3 m detachable cable (3.5 mm)|
|Cable Connectors||Output: 3.5 mm stereo mini jack
Input: 6.35 mm stereo jack, 3.5 mm stereo jack
|Weight||320 g (without cable)|
|Included Accessories||Carrying Case
3.5mm to 6.35mm adapter
|Driver Type||Planar Magnetic|
|Driver Size (Round)||55 mm|
|Magnet System||Symmetric push-pull neodymium|
|10 – 50,000Hz|
Max Input Power
|500 mW according to IEC 60268-7|
|Pulse Max Input Power||2 W|