Short answer: the Sennheiser HD 600. It ranks #10 of 429 over-ear headphones by sound quality (rated 4.4/5) at $301.99 and is still sold new; the Sennheiser HD 559 ranks #411 (rated 1.6/5) and is discontinued, so it is only an option used.
The case for the Sennheiser HD 559: Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural. The tradeoff: Discontinued, so it is mainly found used.
The Sennheiser HD 600 is the better-sounding option. It earns a preference score of 91, with the midrange from 200 Hz to 6 kHz within about 0.1 dB of target, giving vocals and acoustic instruments a very natural tone. The catch: Sub-bass is about 7.9 dB below target, so bass lacks rumble and weight on electronic and hip hop tracks.
Buy the Sennheiser HD 600. It is rated higher for sound quality and still sold new, while the Sennheiser HD 559 is discontinued.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| Sennheiser HD 559 | Sennheiser HD 600 | |
|---|---|---|
| Price | Discontinued | $301.99 |
| Ranked | #411 of 429 in Over-Ear Headphones | #10 of 429 in Over-Ear Headphones |
| Form Factor | Over-ear | Over-ear |
| Back | Open | Open |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 38mm dynamic | 1 x 42mm dynamic |
| Impedance | 50 ohms | 300 ohms |
| Frequency Response | 14Hz - 26kHz | 12Hz - 40.5kHz (Manufacturer specified) |
| Weight | 9.9 oz | 0.6 lbs (260 g) |
| Harman Preference Score | 27 (measured by oratory1990, via AutoEQ) | 91 (measured by oratory1990, via AutoEQ) |
| Deviation From Target | 4.40 dB standard deviation | 1.88 dB standard deviation |
| Tonal Tilt | -2.07 (negative is warmer, positive brighter) | +0.02 (negative is warmer, positive brighter) |
| Sub-bass Extension | Falls 6 dB below target at 28 Hz (-5.7 dB at 30 Hz) | Falls 6 dB below target at 42 Hz (-8.6 dB at 30 Hz) |
| Sensitivity | - | 97 dB SPL/V |
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The Two Headphones In Full
Sennheiser HD 559 Discontinued eBay
Pros: Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural. It uses 1 x 38mm dynamic.
Cons: Discontinued, so it is mainly found used. Presence sits about 3 dB low with a 14.7 dB dip near 9.7 kHz, so vocals and instruments lose some bite. Sub-bass is 5.7 dB short at 30 Hz, so deep bass lacks rumble. A Harman score of 27 places it in the lower part of the over-ear rankings.
Full Sennheiser HD 559 review and specifications →
| Released | 2016 (10 years ago) |
|---|---|
| Back | Open |
| Connection | Wired |
| Deviation From Target | 4.40 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 38mm dynamic |
| Form Factor | Over-ear |
| Frequency Response | 14Hz - 26kHz |
| Harman Preference Score | 27 (measured by oratory1990, via AutoEQ) |
| Impedance | 50 ohms |
| Sub-bass Extension | Falls 6 dB below target at 28 Hz (-5.7 dB at 30 Hz) |
| Tonal Tilt | -2.07 (negative is warmer, positive brighter) |
| Weight | 9.9 oz |
EQ preset to match the Harman target
Set a preamp of -7.1 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 | +16.8 dB | 0.70 |
| Peak | 57 Hz | -15.5 dB | 0.29 |
| Peak | 8,586 Hz | +6.4 dB | 1.38 |
| Peak | 1,333 Hz | +5.9 dB | 1.86 |
| Peak | 1,855 Hz | +4.2 dB | 3.75 |
| High shelf | 10,000 Hz | +1.1 dB | 0.70 |
| Peak | 2,971 Hz | -3.3 dB | 4.77 |
| Peak | 3,736 Hz | +2.6 dB | 6.00 |
| Peak | 5,108 Hz | -1.3 dB | 5.23 |
| Peak | 2,286 Hz | +1.1 dB | 5.82 |
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Sennheiser HD 600: $301.99 Amazon $301.99 eBay
Pros: It earns a preference score of 91, with the midrange from 200 Hz to 6 kHz within about 0.1 dB of target, giving vocals and acoustic instruments a very natural tone. At 260 g it is light, and the long-running design from 1997 remains a reference for neutral midrange tuning. The warm and neutral tilt suits listeners who dislike bright treble.
Cons: Sub-bass is about 7.9 dB below target, so bass lacks rumble and weight on electronic and hip hop tracks. Treble from 6 to 10 kHz is about 3.6 dB low, with a 7.5 dB dip near 9.6 kHz that softens cymbals. At 300 ohms and 97 dB SPL/V it needs a dedicated headphone amp for proper volume, and the open back leaks sound. See headphone amps and DACs with enough power to drive it.
Full Sennheiser HD 600 review and specifications →
| Released | 1997 (29 years ago) |
|---|---|
| Back | Open |
| Connection | Wired |
| Deviation From Target | 1.88 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 42mm dynamic |
| Form Factor | Over-ear |
| Frequency Response | 12Hz - 40.5kHz (Manufacturer specified) |
| Harman Preference Score | 91 (measured by oratory1990, via AutoEQ) |
| Impedance | 300 ohms |
| Sensitivity | 97 dB SPL/V |
| Sub-bass Extension | Falls 6 dB below target at 42 Hz (-8.6 dB at 30 Hz) |
| Tonal Tilt | +0.02 (negative is warmer, positive brighter) |
| Weight | 0.6 lbs (260 g) |
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 | +6.5 dB | 0.70 |
| Peak | 125 Hz | -2.7 dB | 0.55 |
| Peak | 8,445 Hz | +3.3 dB | 1.61 |
| Peak | 522 Hz | +0.7 dB | 1.02 |
| Peak | 1,298 Hz | -1.2 dB | 2.14 |
| High shelf | 10,000 Hz | -3.1 dB | 0.70 |
| Peak | 3,158 Hz | -1.8 dB | 3.67 |
| Peak | 2,166 Hz | +0.9 dB | 3.32 |
| Peak | 6,639 Hz | +2.2 dB | 5.82 |
| Peak | 5,433 Hz | -1.2 dB | 5.70 |
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