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Audiobot Notes
Peak SPL

116.8 dB

This was approximated from the source output at 33 Ω

Damping factor 98.1
Fostex T-50RP MK3
Fostex T-50RP MK3
Impedance 53 Ω
Efficiency 91.0 dB SPL/mW
Frequency Response 15 - 35,000 Hz
Transducer Type Planar magnetic
Operating Principle Open
Ear Coupling Over-ear
3rd Party Measurements www.innerfidelity.com
Price History
updated about 6 hours ago
Current $149.52
Highest $159.99
Lowest $149.52
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Similar Headphones
Fostex T-20RP MK3
Fostex T-20RP
Fostex T-50RP
HiFiMAN HE-400i
Fostex T-20RP MK2
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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