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Audiobot Notes
Peak SPL

123.5 dB

This was approximated from the source output at 150 Ω

Damping factor 309.3
Sennheiser HD 700
Sennheiser HD 700
Impedance 167 Ω
Efficiency 98.5 dB SPL/mW
Frequency Response 10 - 42,000 Hz
Transducer Type Dynamic
Operating Principle Open
Ear Coupling Over-ear
Weight 270 g
3rd Party Measurements www.innerfidelity.com
Additional Notes
"These awesome, open circumaural headphones with tuned, highly-efficient drivers and only the finest acoustic materials will please even the most discriminating audiophile. They also look and feel great."
Price History
Current $749.95
Highest $749.95
Lowest $499.00
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JDS Labs Objective2
JDS Labs Objective2
Type Solid state
Output Impedance 0.54 Ω
Power Output 88 mW at 600 Ω
355 mW at 150 Ω
613 mW at 33 Ω
Frequency Range 20 - 20,000 Hz
Portable
Additional Notes
"O2 is an opensource amplifier designed by brilliant engineer NwAvGuy, with emphasis on benchmark performance and low cost. O2 arrives fully assembled, hand tested, and ready to enjoy."
Price History
Current $139.00
Highest $412.59
Lowest $139.00
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