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Audiobot Notes
Peak SPL

128.8 dB

This was approximated from the source output at 50 Ω

Damping factor 64.3 and 150.0
HiFiMAN HE-400
Impedance 45 Ω
Efficiency 92.3 dB SPL/mW
Frequency Response 20 - 35,000 Hz
Transducer Type Planar magnetic
Operating Principle Open
Ear Coupling Over-ear
Weight 440 g
3rd Party Measurements www.innerfidelity.com
Price History
Current $399.00
Highest $399.00
Lowest
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Similar Headphones
Fostex TH-500RP
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HiFiMAN HE-500
HiFiMAN HE-400i
Schiit Lyr 2
Schiit Lyr 2
Type Tube hybrid
Output Impedance 0.3 Ω
0.7 Ω
Power Output 330 mW at 600 Ω
660 mW at 300 Ω
4,000 mW at 50 Ω
6,000 mW at 32 Ω
Frequency Range 20 - 20,000 Hz
Portable
Additional Notes
"High power tube hybrid or solid state headamp and preamp"
Price History
Current $300.00
Highest $499.00
Lowest $300.00
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