Sennheiser IE 300 vs Sennheiser IE 900

Every spec side by side, from each maker's published figures.

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IE 300 compared with IE 900
SennheiserIE 300SennheiserIE 900
Overview
ReleasedJanuary 2021June 2021
Sound
TypeIn-earIn-ear
Noise cancellingNoNo
Driver size7 mm7 mm
Impedance16 ohms18 ohms
Bluetooth codecsNone (wired)None (wired)
Drivers7 mm TrueResponse extra wide band (XWB) dynamic driver made in Germany, with a new membrane foil and a resonator chamber, diffuse-field equalised; 6 – 20,000 Hz; 124 dB SPL (1 kHz, 1 Vrms); THD < 0.08% (1 kHz, 94 dB)7 mm X3R TrueResponse Extra Wide Band (XWB) dynamic driver with a triple-chamber absorber (Helmholtz resonators); 5 – 48,000 Hz; 123 dB SPL at 1 kHz (1 Vrms); THD < 0.05% (1 kHz, 94 dB); diffuse-field equalised
Battery
Listening time (maker's claim)No battery (wired)No battery (wired)
Design
Weight (each earbud)4 g4 g
Headphone cableYesYes
Fit and ear tipsIn-ear, closed; –26 dB attenuation; adjustable flexible ear hooks, TPU-encased; silicone and memory-foam tips (S, M, L)In-ear, closed; about 26 dB passive attenuation; adjustable TPU-coated ear hooks; silicone and memory-foam tips; aluminium housings milled in Germany
Works withDetachable 1.25 m OFC cable, para-aramid reinforced, with gold-plated Fidelity+ MMCX connectors in recessed 4.8 mm sockets and a 3.5 mm plug; balanced 2.5 mm and 4.4 mm cables sold separatelyGold-plated Fidelity (+) MMCX connectors; para-aramid reinforced OFC cables (about 1.25 m) with 3.5 mm unbalanced, 2.5 mm balanced or 4.4 mm balanced plugs
In the boxIE 300 earphones, cable with MMCX connectors and 3.5 mm plug, silicone and memory-foam tips (S, M, L), carry case, cleaning tool, user manualsIE 900 earphones, 3.5 mm, 2.5 mm and 4.4 mm cables, silicone and foam ear tips, carry case

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