Product Comparison: HiFiMAN HE-400I vs OPPO PM-3


Best Pick
HiFiMAN HE-400I Over Ear Full-Size Planar Magnetic Headphones
OPPO PM-3 Closed-Back Planar Magnetic Headphones
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General Specifications
Brand
HiFiMAN
OPPO
Model
HE-400I
PM-3
Origin
China
China
About the Product
The HIFIMAN HE-400i is a high quality, full-size planar magnetic headphone designed for critical listening in the home or studio. At little more than twelve ounces, HE-400i is 30% lighter allowing the listener to comfortably enjoy music for hours on end.
The OPPO PM-3 combines true audiophile performance, elegant styling, noise isolation and portability into a pair of sleek lightweight Planar Magnetic headphones. With the PM-3, users can easily recreate the experience of listening to a pair of flagship headphones on a flagship amplifier.
Key Specs
Type
Over-ear
Closed over-ear
Sensitivity
93 dB
102 dB
Min. Frequency Range
20 Hz
10 Hz
Max. Frequency Range
35 kHz
50 kHz
Impedance
35 Ω
26 Ω
What customers say about "Key Specs"
HiFiMAN HE-400I Over Ear Full-Size Planar Magnetic Headphones
  • The sound quality is amaaaaazing!! I had while listening to many of my favorite songs was that how much detailed the the songs actually were.
  • They sound amazing, and I expect they'll hold up over the long run.
  • They also sound great with my iPhone 7 Plus using the Dragonfly and an Apple USB camera connector dongle.
  • I absolutely love these headphones. Very crisp, clean sound.
  • These are the best sounding headphones I have ever tried. Everything is so crisp and clear and the soundstage is massive.
OPPO PM-3 Closed-Back Planar Magnetic Headphones
  • The sound has zero distortion and there is, in my opinion, a perfect balance between bass, vocals, treble.
  • Songs sound natural and clean. I hear detail in songs I never heard before and there is also set a bit of a sound stage.
  • The PM-3's sound good enough on my phone, although they do sound richer and the bass heavier with the amplifier paired with my phone.
  • Fantastic neutral sound. Planar magnetic is definitely an advantage over traditional drivers.
  • Neutral songs may sound flat to those used to heavy bass headphones.
Size & Weight
Height
8.27 in.
10.9 in.
Width
7.09 in.
9.8 in.
Depth
4.13 in.
5.1 in.
Weight
13.05 oz.
11.29 oz.
What customers say about "Size & Weight"
HiFiMAN HE-400I Over Ear Full-Size Planar Magnetic Headphones
  • These headphones are pretty portable and quite small.
  • I consider that I have a medium size head, fit it ideally in my head.
  • The comfort is great, it sits perfectly well on my small head, the clamp is perfect
  • The pads are comfortable (the light weight is dispersed over a larger surface area than most headphones).
  • If you have a small head, you will probably find this headphone too big and it won't fit on you.
OPPO PM-3 Closed-Back Planar Magnetic Headphones
  • Very comfortable and light. Built like a tank with the design like an iphone
  • They've balanced portability, size, durability, comfort, and sound amazingly well.
  • Amazing listening experience who has a normal sized head. Good lightweight design, but sturdy, except ear cups.
  • Looks like a normal headphones in size and feels a bit heavier in weight, and that's mean they are solid.
  • They were too small on head and I was going to return them.
Features
Driver Diameter
2.36 in.
2.17 in.
Detachable Cable
Yes
Yes
Foldable
No
No
Headband Material
Leather/Metal
Aluminum / Leather
Cable Length
4.92 ft.
9.84 ft.
Microphone
No
Yes
In-Line Remote
No
Yes
Extras
Planar Magnetic Headphones, Striking Contemporary Design, Crystalline Metal 3.5mm Cable, Velour / Leatherette Earcups
Unique Planar Magnetic Sound, Double-Sided Spiraling Coils, 7-Layer Diaphragm, FEM-Optimized Magnet System, Optimized for Mobile Use
What customers say about "Features"
HiFiMAN HE-400I Over Ear Full-Size Planar Magnetic Headphones
  • Generally, I found the HE-400i's performed best with music that featured higher frequencies.
  • You can drive these from your IOS device, and they sound good, but my preference is to use amplification if readily available.
  • The good large pleather ear cups that have soft velvet like material touching my head.
  • In addition, the foam ear pad on the left side is separating from the driver casing.
  • The thing is these are open headphones. Your office or room mates are not going to like the sound leakage.
OPPO PM-3 Closed-Back Planar Magnetic Headphones
  • Headphones provide good noise isolation with their build.
  • Planar is the way to go for a comprise between driver and electrostatic and these hit a home run for price, quality and most important the sound.
  • Comes with separate long and short length cables, so you can listen it from home and on the go.
  • Unlike premium models, the pm-3 used faux leather on the ear and head cushion.
  • The only thing I didn't love is the synthetic leather pads.
Warranty / Certifications
Certifications
CE
CE
Manufacturer Warranty
1 year(s)
1 year(s)
Other Information
Manufacturer
Link
Link
MSRP
449.00 $
399.00 $
Manual
Download
Download

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