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Audiobot Notes
Peak SPL

127.0 dB

Damping factor
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
Price History
Current $350.00
Highest $582.59
Lowest $350.00
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Power Output 100 mW at 300 Ω
50 mW at 32 Ω
25 mW at 16 Ω
Frequency Range 10 - 20,000 Hz
Portable
Price History
Current $165.95
Highest $272.00
Lowest $165.95
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