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Audiobot Notes
Peak SPL

130.2 dB

This was approximated from the source output at 50 Ω

Damping factor 30.0
Koss Porta Pro
Koss Porta Pro
Impedance 60 Ω
Efficiency 101.0 dB SPL/mW
Frequency Response 15 - 25,000 Hz
Transducer Type Dynamic
Operating Principle Open
Ear Coupling On-ear
Weight 70 g
Price History
Current $29.97
Highest $70.86
Lowest $29.97
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Schiit Asgard 2
Schiit Asgard 2
Output Impedance 2.0 Ω
Power Output 190 mW at 600 Ω
380 mW at 300 Ω
1,000 mW at 50 Ω
1,000 mW at 32 Ω
Frequency Range 20 - 20,000 Hz
Portable
Additional Notes
"Class A single ended headphone amp and preamp"
Price History
Current $9.15
Highest $1,212.29
Lowest $9.15
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