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Audiobot Notes
Peak SPL

117.5 dB

This was approximated from the source output at 50 Ω

Damping factor 56.0
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
Price History
Current $42.13
Highest $69.99
Lowest $42.13
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Cypher Labs Duet
Cypher Labs Duet
Output Impedance 1.0 Ω
Power Output 120 mW at 600 Ω
240 mW at 300 Ω
100 mW at 50 Ω
70 mW at 32 Ω
Frequency Range 5 - 150,000 Hz
Portable
Price History
Current $4,740.63
Highest $4,779.73
Lowest $4,740.63
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