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Audiobot Notes
Peak SPL

122.1 dB

This was approximated from the source output at 32 Ω

Damping factor
Sennheiser HD 25-1 II
Impedance 70 Ω
Efficiency 108.5 dB SPL/mW
Frequency Response 16 - 22,000 Hz
Transducer Type Dynamic
Operating Principle Closed
Ear Coupling On-ear
Weight 140 g
Price History
Current $249.95
Highest $438.59
Lowest $249.95
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Power Output 100 mW at 300 Ω
50 mW at 32 Ω
25 mW at 16 Ω
Frequency Range 10 - 20,000 Hz
Portable
Price History
Current $165.95
Highest $272.00
Lowest $165.95
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