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Audiobot Notes
Peak SPL

113.7 dB

This was approximated from the source output at 32 Ω

Damping factor 28.0
Superlux HD-668B
Superlux HD-668B
Impedance 56 Ω
Efficiency 98.0 dB SPL/mW
Frequency Response 10 - 30,000 Hz
Transducer Type Dynamic
Operating Principle Open
Ear Coupling Over-ear
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Current $35.48
Highest $69.99
Lowest $35.48
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Output Impedance 2.0 Ω
Power Output 8 mW at 300 Ω
65 mW at 32 Ω
100 mW at 16 Ω
Frequency Range 20 - 20,000 Hz
Portable
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