The MDR-7506's impedance is 63Ω against the HD 599 SE's 50Ω, its driver size 40mm against 38mm, and its low-frequency extension 10 Hz against 12 Hz. Both share sensitivity (106 dB).
Both turn up in the same documented systems.
The K701's sensitivity is 105 dB against the HD 599 SE's 106 dB, its impedance 62Ω against 50Ω, its high-frequency extension 40 kHz against 39 kHz, and its low-frequency extension 10 Hz against 12 Hz.
The 99 Classics's sensitivity is 103 dB against the HD 599 SE's 106 dB, its impedance 32Ω against 50Ω, its driver size 40mm against 38mm, and its low-frequency extension 15 Hz against 12 Hz.
Both turn up in the same documented systems.
The HD 598 SE's sensitivity is 112 dB against the HD 599 SE's 106 dB. Both share impedance (50Ω), low-frequency extension (12 Hz), and high-frequency extension (39 kHz).
HD 580 Precision
- Sensitivity
- 97 dB vs 106 dB
- Impedance
- 300Ω vs 50Ω
AKG K371
- Sensitivity
- 114 dB vs 106 dB
- Impedance
- 32Ω vs 50Ω