Sony MDR-1R headphones

Impedance	24 Ω
Efficiency	105.0 dB SPL/mW
Frequency Response	4 - 80,000 Hz
Transducer Type	Dynamic
Operating Principle	Closed
Ear Coupling	Over-ear
Weight	240 g

Target SPL Requirements
Target	Power	Voltage
90.0 dB	0.03 mW	0.03 Vrms
92.5 dB	0.06 mW	0.04 Vrms
95.0 dB	0.1 mW	0.05 Vrms
97.5 dB	0.18 mW	0.07 Vrms
100.0 dB	0.32 mW	0.09 Vrms
102.5 dB	0.56 mW	0.12 Vrms
105.0 dB	1.0 mW	0.15 Vrms
107.5 dB	1.8 mW	0.21 Vrms
110.0 dB	3.2 mW	0.28 Vrms

Price History
Current	$240.50
Highest	$240.50
Lowest	—
Search Item	Amazon, eBay

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