FiiO JT9 Over-Ear Planar-Magnetkopfhörer, offen vs Sennheiser RS 275

What JT9 Over-Ear Planar-Magnetkopfhörer, offen does better (0) and where RS 275 wins (0) — every spec side by side.

0 advantages≈ $170

Sennheiser · 2026RS 275

4.8Score

0 advantages≈ $210

Higher score

3.9Noise control & calls3.9

Why is JT9 Over-Ear Planar-Magnetkopfhörer, offen better than RS 275?

JT9 Over-Ear Planar-Magnetkopfhörer, offen has no measurable advantages in this pair.

RS 275 has no measurable advantages in this pair.

Specifications

Only differences	FiiO JT9 Over-Ear Planar-Magnetkopfhörer, offen≈ $170	Sennheiser RS 275≈ $2104.8
Sound
Fit	Over-ear	On-ear
Ear cup design	Open-back	Closed-back
Driver type	Dynamic	Dynamic
Lowest frequency	—	6 Hz
Highest frequency	—	20,000 Hz
Sensitivity	—	106 dB
Spatial / 3D audio	—	Yes
Hi-Res Audio	—	Yes
Noise control
Active noise cancelling	No	No
Battery & charging
Battery life	—	50 h
Battery capacity	95 mAh	—
Charging time	—	2 h
Connectivity
Wireless	No	Yes
Bluetooth version	—	5.4
Bluetooth codecs	—	aptX Adaptive, AAC
Hi-res codec (LDAC / aptX HD / LHDC)	—	Yes
aptX	—	Yes
LDAC	—	No
LE Audio	—	Yes
Auracast	—	Yes
USB-C	—	Yes
3.5 mm jack / AUX	Yes	—
Design & build
Weight	—	195 g
Foldable	Yes	Yes
Colours	Silver, Black	Black
Features
Hands-free calls	—	Yes