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Audiobot Notes
Peak SPL

119.9 dB

This was approximated from the source output at 150 Ω

Damping factor 568.5
Sennheiser HD 600
Sennheiser HD 600
Impedance 307 Ω
Efficiency 97.5 dB SPL/mW
Frequency Response 12 - 39,000 Hz
Transducer Type Dynamic
Operating Principle Open
Ear Coupling Over-ear
Weight 260 g
3rd Party Measurements www.innerfidelity.com
Additional Notes
"These headphones are engineered for the true audiophile. Thanks to an open circumaural design, computer optimized magnets and aluminum voice coils, you won't find cleaner, crisper stereo sound anywhere."
Price History
Current $299.00
Highest $373.00
Lowest $299.00
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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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