$299 for White colour only, this is the cheapest I've seen them so far, ozbargain or otherwise.
Notes: The OPPO PM-3 headphones are known as the “Portable Planar Magnetic’s” since they can be driven from a phone’s headphone jack.
Feedback says they do still benefit from amping.
Some have experienced brand-new pairs having slight distortion in the sound especially when bass hits, this has been reported to go away after extended use.
Acoustic Principle: Closed back
Ear Coupling: Circumaural
Nominal Impedance: 26 Ohm
Sensitivity: 102 dB in 1 mW
Clamping Pressure: 5N
Cables: 3 m detachable cable (3.5 mm with 6.35 mm adapter)
1.2 m detachable cable (3.5 mm)
Cable Connectors: Output: 3.5 mm stereo jack
Input: 6.35 mm stereo jack, 3.5 mm stereo jack
Weight (without cable): 320 g (Black/White), 310 g (Cherry Red/Steel Blue)
Included Accessories: Carrying Case, User Manual.
Driver Type: Planar Magnetic
Driver Size (Round): 55 mm diameter
Magnet System: Symmetric push-pull neodymium
Frequency Response In Free-Field: 10 - 50,000 Hz
Long-Term Max Input Power: 500 mW according to IEC 60268-7
Pulse Max Input Power: 2 W
This is my first bargain post so please forgive and errors and let me know to correct them
Just last week I picked up a red set from minidisc for $369 and I am really liking them, happy to share thoughts.