The HP-2's impedance is 32Ω against the K1000's 120Ω, its high-frequency extension 20 kHz against 25 kHz, and its low-frequency extension 18 Hz against 30 Hz. Both share headphone type (Over-ear).
Both turn up in the same documented systems.
The RS1x's sensitivity is 99.8 dB against the K1000's 74 dB, its impedance 38Ω against 120Ω, its high-frequency extension 30 kHz against 25 kHz, and its low-frequency extension 12 Hz against 30 Hz.
The AH-D7200's sensitivity is 105 dB against the K1000's 74 dB, its impedance 25Ω against 120Ω, its high-frequency extension 55 kHz against 25 kHz, and its low-frequency extension 5 Hz against 30 Hz.
Grado Labs PS1000 LE
- Sensitivity
- 98 dB vs 74 dB
- Impedance
- 32Ω vs 120Ω
ZMF Headphones Aeolus
- Sensitivity
- 98 dB vs 74 dB
- Impedance
- 300Ω vs 120Ω