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Audiobot Notes
Peak SPL

119.7 dB

This was approximated from the source output at 250 Ω

Damping factor 3.2

Headphones with higher impedances may be a better fit for this amp

Sennheiser HD 650
Sennheiser HD 650
Impedance 320 Ω
Efficiency 98.5 dB SPL/mW
Frequency Response 10 - 39,500 Hz
Transducer Type Dynamic
Operating Principle Open
Ear Coupling Over-ear
Weight 260 g
3rd Party Measurements www.innerfidelity.com
Additional Notes
"Here's a perfect addition to your high-end home entertainment system. Hand-picked components, special acoustic materials and exceptional engineering make these headphones an audiophile's dream."
Price History
Current $369.93
Highest $438.99
Lowest $369.93
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Sennheiser HD 600
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Beyerdynamic A20
Beyerdynamic A20
Output Impedance 100.0 Ω
Power Output 100 mW at 600 Ω
170 mW at 250 Ω
150 mW at 30 Ω
Frequency Range 10 - 100,000 Hz
Portable
Price History
Current $360.46
Highest $749.00
Lowest $360.46
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