The 99 Classics's sensitivity is 103 dB against the FT1's 98 dB, its low-frequency extension 15 Hz against 10 Hz, and its high-frequency extension 25 kHz against 40 kHz. Both share impedance (32Ω).
Both turn up in the same documented systems.
The Fidelio X2HR's sensitivity is 100 dB against the FT1's 98 dB, its impedance 30Ω against 32Ω, and its low-frequency extension 5 Hz against 10 Hz. Both share high-frequency extension (40 kHz).
Both turn up in the same documented systems.
The HD 580 Precision's sensitivity is 97 dB against the FT1's 98 dB, its impedance 300Ω against 32Ω, its high-frequency extension 38 kHz against 40 kHz, and its low-frequency extension 12 Hz against 10 Hz.
Audio-Technica ATH-M40x
- Sensitivity
- 98 dB vs 98 dB
- Impedance
- 35Ω vs 32Ω
HiFiMAN Sundara
- Impedance
- 32Ω vs 32Ω
- Sensitivity
- 92 dB vs 98 dB