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Audiobot Notes
Peak SPL

120.1 dB

This was approximated from the source output at 32 Ω

Damping factor 48.1
Sennheiser HD 558
Sennheiser HD 558
Impedance 50 Ω
Efficiency 99.0 dB SPL/mW
Frequency Response 15 - 28,000 Hz
Transducer Type Dynamic
Operating Principle Open
Ear Coupling Over-ear
Weight 270 g
Price History
Current $175.90
Highest $299.00
Lowest $175.90
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FiiO E10K
Output Impedance 1.04 Ω
Power Output 200 mW at 32 Ω
Frequency Range 20 - 20,000 Hz
Portable
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Current $71.30
Highest $186.44
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