Sennheiser IE 300 vs Sennheiser IE 900

Short answer: the Sennheiser IE 900 for better sound quality, the Sennheiser IE 300 for the lower price. The Sennheiser IE 900 ranks #491 of 584 in-ear headphones, rated 3.1/5, at $1,299.95. The Sennheiser IE 300 ranks #567, rated 1.7/5, at $179.95, $1,120 cheaper.

The case for the Sennheiser IE 300: A compact, comfortable single dynamic IEM with a detachable cable and full bass about 4 dB above target that extends to 20 Hz. Watch for: The tuning measures poorly, with a Harman score of 46: presence sits about 5.6 dB low with a 7.7 dB dip near 3.2 kHz, while a 12.4 dB treble peak near 9.8 kHz can make cymbals and sibilance harsh.

The Sennheiser IE 900 is the better-sounding pick. Oratory1990 measured sub-bass and bass within about 1.2 dB of target, so the low end is tidy and controlled. The catch: Presence from 3 to 6 kHz is about 6.7 dB below the Harman target, with an 8.8 dB dip near 3.6 kHz, which recesses vocals and removes some bite.

Buy the Sennheiser IE 300 when the price outweighs sound quality for you, and the Sennheiser IE 900 when sound quality outweighs the price instead.

Want more options? Browse the full Headphones rankings.

Specifications Side By Side

Related Headphone Comparisons

More worthwhile head-to-heads for Sennheiser IE 900:

• Sennheiser IE 200 vs Sennheiser IE 900
• Sennheiser IE 600 vs Sennheiser IE 900
• qdc Anole V6 vs Sennheiser IE 900
• Sennheiser IE 900 vs FiiO FH5
• Sennheiser IE 900 vs Westone MACH 80

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The Two Headphones In Full

Sennheiser IE 300: $179.95 Sennheiser $179.95 eBay

Pros: A compact, comfortable single dynamic IEM with a detachable cable and full bass about 4 dB above target that extends to 20 Hz.

Cons: The tuning measures poorly, with a Harman score of 46: presence sits about 5.6 dB low with a 7.7 dB dip near 3.2 kHz, while a 12.4 dB treble peak near 9.8 kHz can make cymbals and sibilance harsh.

Full Sennheiser IE 300 review and specifications →

Released	Jan 2021 (5 years ago)
Back	Closed
Connection	Wired
Deviation From Target	4.03 dB standard deviation
Driver Type	Dynamic
Drivers	1 x 7mm dynamic
Form Factor	In-ear
Frequency Response	6Hz - 20kHz (Manufacturer specified)
Harman Preference Score	46 (measured by HypetheSonics, via AutoEQ)
Impedance	16 ohms
Sensitivity	124 dB/Vrms
Sub-bass Extension	Within 6 dB of target down to 20 Hz (+3.0 dB at 30 Hz)
Tonal Tilt	-1.20 (negative is warmer, positive brighter)
Weight	0 lbs (4 g)

EQ preset to match the Harman target

Set a preamp of -6.9 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.

Filter	Frequency	Gain	Q
Low shelf	105 Hz	-3.9 dB	0.70
Peak	3,614 Hz	+5.8 dB	2.70
Peak	184 Hz	-4.0 dB	0.86
Peak	2,391 Hz	+4.9 dB	2.09
Peak	820 Hz	+1.5 dB	1.13
High shelf	10,000 Hz	-7.7 dB	0.70
Peak	9,660 Hz	-3.3 dB	1.79
Peak	5,989 Hz	+3.4 dB	5.57
Peak	61 Hz	+0.6 dB	1.93
Peak	7,066 Hz	-2.2 dB	6.00

• Reviews, Comparisons and Sound Samples
  • AutoEQ results for the Sennheiser IE 300 (HypetheSonics measurement)
• Head-to-Head Comparisons
  • Sennheiser IE 300 vs Sennheiser IE 4
  • Sennheiser IE 300 vs Sennheiser IE 600
  • Sennheiser IE 300 vs Sennheiser IE 200

Sennheiser IE 900: $1,299.95 Amazon $1,299.95 eBay

Same family: the Sennheiser IE 200 (lower-end model, ranked higher, rated 4.4/5) and the Sennheiser IE 600 (lower-end model, ranked higher, rated 3.5/5).

Pros: Oratory1990 measured sub-bass and bass within about 1.2 dB of target, so the low end is tidy and controlled. Sensitivity of 123 dB SPL/V and a 16 ohm impedance make it easy to drive from a phone, and the 7mm dynamic driver is rated to reach from 5 Hz to 48 kHz. Top-octave air sits about 3.6 dB above target for an open, detailed treble.

Cons: Presence from 3 to 6 kHz is about 6.7 dB below the Harman target, with an 8.8 dB dip near 3.6 kHz, which recesses vocals and removes some bite. A preference score of 63 is modest for such a premium product, and the HIFIMAN RE2000 has a higher rating at a lower price.

Full Sennheiser IE 900 review and specifications →

Released	2021 (5 years ago)
Back	Closed
Connection	Wired
Deviation From Target	2.82 dB standard deviation
Driver Type	Dynamic
Drivers	1 x 7mm dynamic
Form Factor	In-ear
Frequency Response	5Hz - 48kHz (Manufacturer specified)
Harman Preference Score	63 (measured by oratory1990, via AutoEQ)
Impedance	16 ohms
Sensitivity	123 dB SPL/V
Sub-bass Extension	Within 6 dB of target down to 20 Hz (+0.7 dB at 30 Hz)
Tonal Tilt	-0.92 (negative is warmer, positive brighter)

EQ preset to match the Harman target

Set a preamp of -6.3 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.

Filter	Frequency	Gain	Q
Low shelf	105 Hz	-2.3 dB	0.70
Peak	4,081 Hz	+5.0 dB	2.86
Peak	204 Hz	-2.6 dB	1.13
Peak	1,472 Hz	-2.7 dB	2.33
Peak	2,956 Hz	+5.2 dB	2.42
High shelf	10,000 Hz	-4.4 dB	0.70
Peak	67 Hz	+0.6 dB	1.76
Peak	26 Hz	-0.9 dB	3.19
Peak	729 Hz	+0.4 dB	2.54
Peak	376 Hz	-0.4 dB	2.69

• Reviews, Comparisons and Sound Samples
  • AutoEQ results for the Sennheiser IE 900 (oratory1990 measurement)
• Head-to-Head Comparisons
  • Sennheiser IE 900 vs FiiO FH5
  • Sennheiser IE 900 vs qdc Anole V6
  • Sennheiser IE 900 vs Westone MACH 80
  • Sennheiser IE 900 vs Sennheiser IE 600
  • Sennheiser IE 900 vs Sennheiser IE 4
  • Sennheiser IE 900 vs Sennheiser IE 200