FA1

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Model FA7 FA1 FH5 F9 PRO  F9 F9 SE FH1
Type 4 balanced armature drivers  Single balanced armature driver 1 dynamic driver + 3 balanced armature drivers  1 dynamic driver + 2 balanced armature drivers  1 dynamic driver + 2 balanced armature drivers 1 dynamic driver + 2 balanced armature drivers  1 dynamic driver + 1 balanced armature driver
BA Knowles CI-22955 + ED-29689 + dual BA driver SWFK-31736 Knowles ED-33357 Knowles ED-30262 + dual BA driver TWFK-31082 Knowles dual BAdriver TWFK-30017 Dual balanced armature driver Dual balanced armature driver Knowles 33518
DD N/A N/A 10mm PU+PET polymer nanocomposite dynamic driver 9.2mm PEK polymer nanocomposite dynamic driver 9.2mm PEK polymer nanocomposite dynamic driver 9.2mm PEK polymer nanocomposite dynamic driver 10mm titanium diaphragm dynamic driver

Frequency

Response

20~40kHz 20~40kHz 15~40kHz 15Hz~40kH 15Hz~40kH 15Hz~40kH 20Hz~40kH
Sensitivity 110dB/mW (@1KHz) 111dB/mW(@1KHz) 112dB/mW (@1KHz) 106 dB/mW (@1KHz) 106 dB/mW (@1KHz) 106 dB/mW (@1KHz) 106 dB/mW (@1KHz)
Impedance 23Ω(@1KHz) 15Ω(@1KHz) 19Ω (@1KHz) 28 Ω (@1KHz) 28 Ω (@1KHz) 28 Ω (@1KHz) 26 Ω (@1KHz)
Plug 3.5mm L-shaped gold-plated stereo jack 3.5mm L-shaped gold-plated stereo jack 3.5mm L-shaped gold-plated stereo jack 3.5mm L-shaped gold-plated stereo jack / 2.5mm TRRS L-shaped gold-plated stereo jack 3.5mm straight gold-plated stereo jack / 2.5mm TRRS straight gold-plated stereo jack 3.5mm L-shaped gold-plated stereo jack 3.5mm L-shaped gold-plated stereo jack (CTIA standard) /
2.5mm TRRS L-shaped gold-plated stereo jack
Cord Length 1.2m 1.2m 1.2m 1.2 m 1.2 m 1.2 m 1.2 m

Weight

(per earbud)

About 5.2g (excl. the cable) About 4.5g (excl. the cable) About 7.1g (excl. the cable) About 3.76g (excl. the cable) About 3.76g (excl. the cable) About 3.76g (excl. the cable) About 3.8g (excl. the cable)
Color Multiple Black and Blue/Red combo Titanium Titanium Black / Red Black / Red Red / Green / Blue / Black

Detachable

Cable Design

Yes (standard MMCX connector) Yes (standard MMCX connector) Yes (standard MMCX connector) Yes (standard MMCX connector) Yes (standard MMCX connector) N/A Yes (standard MMCX connector)