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Polk UltraFocus 8000
Impedance 32 Ω
Efficiency 110.0 dB SPL/mW
Frequency Response 8 - 28,000 Hz
Transducer Type Dynamic
Operating Principle Closed
Ear Coupling On-ear
Additional Notes
Active noise cancellation
Target SPL Requirements
Target Power Voltage
90.0 dB 0.01 mW 0.02 Vrms
92.5 dB 0.02 mW 0.02 Vrms
95.0 dB 0.03 mW 0.03 Vrms
97.5 dB 0.06 mW 0.04 Vrms
100.0 dB 0.1 mW 0.06 Vrms
102.5 dB 0.18 mW 0.08 Vrms
105.0 dB 0.32 mW 0.1 Vrms
107.5 dB 0.56 mW 0.13 Vrms
110.0 dB 1.0 mW 0.18 Vrms
Price History
Current $350.00
Highest $582.59
Lowest $350.00
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