Pair Headphones with Amps
Compare Headphones
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 $36.99
Highest $69.99
Lowest $36.99
Search Item
Similar Headphones
Superlux HD-681
Samson SR850
SoundMAGIC HP200
Beyerdynamic DT 440 Edition
Sennheiser HD 598 Special Edition
ALO Audio International+
ALO Audio International+
Type Solid state
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 - 50,000 Hz
Portable
Price History
Current $2,055.67
Highest $2,055.69
Lowest $2,055.67
Search Item
Buy from ALO Audio