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Audiobot Notes
Peak SPL

116.6 dB

This was approximated from the source output at 32 Ω

Damping factor
HiFiMAN HE-400s
HiFiMAN HE-400s
Impedance 22 Ω
Efficiency 98.0 dB SPL/mW
Frequency Response 20 - 35,000 Hz
Transducer Type Planar magnetic
Operating Principle Open
Ear Coupling Over-ear
Weight 350 g
Price History
Current $226.99
Highest $299.00
Lowest $226.99
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Fostex T-20RP MK2
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HiFiMAN HE-400i
HiFiMAN HE-400
Fostex T-50RP
Little Dot I+
Little Dot I+
Type Tube hybrid
Power Output 150 mW at 300 Ω
300 mW at 120 Ω
800 mW at 32 Ω
Frequency Range 10 - 50,000 Hz
Portable
Price History
Current $108.00
Highest $169.98
Lowest $108.00
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