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Impedance 125 Ω
Efficiency 90.0 dB SPL/mW
Frequency Response 12 - 39,500 Hz
Transducer Type Dynamic
Operating Principle Open
Ear Coupling Over-ear
Weight 238 g
3rd Party Measurements www.innerfidelity.com
Target SPL Requirements
Target Power Voltage
90.0 dB 1.0 mW 0.35 Vrms
92.5 dB 1.8 mW 0.47 Vrms
95.0 dB 3.2 mW 0.63 Vrms
97.5 dB 5.6 mW 0.84 Vrms
100.0 dB 10.0 mW 1.12 Vrms
102.5 dB 17.8 mW 1.49 Vrms
105.0 dB 31.6 mW 1.99 Vrms
107.5 dB 56.2 mW 2.65 Vrms
110.0 dB 100.0 mW 3.54 Vrms
Price History
Current $122.00
Highest $187.21
Lowest $122.00
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Popular amps for AKG K 612 Pro

Model Peak SPL Portable Price
Schiit Magni 116.0 dB $12.99
Schiit Magni 2 116.0 dB $5.99
Schiit Magni 3 117.2 dB $99.00
Schiit Vali 2 114.1 dB $169.00
Schiit Vali 113.4 dB $119.00
Schiit Asgard 2 116.0 dB $9.15
Meier-Audio Corda Classic 118.8 dB