Sennheiser IE 300 vs Sennheiser IE 600

Short answer: the Sennheiser IE 600. It ranks #449 of 584 in-ear headphones by sound quality, rated 3.5/5, at $699.95. The Sennheiser IE 300 ranks #567, rated 1.7/5, at $179.95, $520 cheaper, a saving that is not big enough to make up the sound-quality gap.

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. The tradeoff: 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 600 is the better-sounding choice. Sub-bass extends to 20 Hz with a slight 1.7 dB lift, and bass, low mids and upper mids all sit within about 1.3 dB of target, so the core of most music sounds full and natural. The tradeoff: In oratory1990’s measurement a 7.6 dB dip near 5.9 kHz and a presence band 5.5 dB under target take bite out of vocals and guitars, while a 4.7 dB peak near 9.7 kHz can sound sharp.

Buy the Sennheiser IE 600. It is rated higher for sound quality, and the $520 you would save on the Sennheiser IE 300 does not close the gap.

Still deciding? The full Headphones rankings cover every ranked option.

Specifications Side By Side

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• Sennheiser IE 200 vs Sennheiser IE 600
• HIFIMAN RE2000 vs Sennheiser IE 600
• Sennheiser IE 600 vs Symphonium Audio Triton
• Sennheiser IE 600 vs JVC HA-FW1500
• Sennheiser IE 600 vs OpenAudio Mercury

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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 900
  • Sennheiser IE 300 vs Sennheiser IE 200

Sennheiser IE 600: $699.95 B&H Photo Video $699.95 eBay

Same family: the Sennheiser IE 200 (lower-end model, ranked higher, rated 4.4/5) and the Sennheiser IE 900 (higher-end model, ranked lower, rated 3.1/5).

Pros: Sub-bass extends to 20 Hz with a slight 1.7 dB lift, and bass, low mids and upper mids all sit within about 1.3 dB of target, so the core of most music sounds full and natural. Air above 10 kHz is lifted about 5.6 dB, adding sparkle to cymbals and room sound. At 118 dB/V it is easy to drive from a phone, and it suits listeners who like a bassy or warm tilt.

Cons: In oratory1990’s measurement a 7.6 dB dip near 5.9 kHz and a presence band 5.5 dB under target take bite out of vocals and guitars, while a 4.7 dB peak near 9.7 kHz can sound sharp. The FiiO FD5 and iBasso IT04 both carry higher ratings for considerably less money.

Full Sennheiser IE 600 review and specifications →

Released	Mar 2022 (4 years ago)
Back	Closed
Built-in Microphone	No
Connection	Wired
Deviation From Target	2.46 dB standard deviation
Driver Type	Dynamic
Drivers	1 x 7mm dynamic
Form Factor	In-ear
Frequency Response	4Hz - 46.5kHz (Manufacturer specified)
Harman Preference Score	67 (measured by oratory1990, via AutoEQ)
Impedance	18 ohms
Sensitivity	118 dB SPL/V
Sub-bass Extension	Within 6 dB of target down to 20 Hz (+2.3 dB at 30 Hz)
Tonal Tilt	-0.80 (negative is warmer, positive brighter)
Weight	0 lbs (6 g) per earbud

EQ preset to match the Harman target

Set a preamp of -5.3 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	-2.7 dB	0.70
Peak	4,374 Hz	+5.0 dB	1.28
Peak	196 Hz	-1.9 dB	1.50
Peak	1,727 Hz	-2.8 dB	1.16
Peak	798 Hz	+1.5 dB	1.45
High shelf	10,000 Hz	-7.6 dB	0.70
Peak	72 Hz	+1.4 dB	1.93
Peak	5,857 Hz	+3.3 dB	5.80
Peak	143 Hz	-0.7 dB	3.18
Peak	4,796 Hz	-0.6 dB	4.12

• Reviews, Comparisons and Sound Samples
  • AutoEQ results for the Sennheiser IE 600 (oratory1990 measurement)
• Head-to-Head Comparisons
  • Sennheiser IE 600 vs Symphonium Audio Triton
  • Sennheiser IE 600 vs JVC HA-FW1500
  • Sennheiser IE 600 vs OpenAudio Mercury
  • Sennheiser IE 600 vs HIFIMAN RE2000
  • Sennheiser IE 600 vs Sennheiser IE 900
  • Sennheiser IE 600 vs Sennheiser IE 4
  • Sennheiser IE 600 vs Sennheiser IE 200