Sennheiser HD 505 vs Sennheiser HD 559

Last updated: October 13, 2026

Short answer: the Sennheiser HD 505. It ranks #31 of 429 over-ear headphones by sound quality (rated 4.3/5) at $205.55 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.

Sennheiser HD 505 vs Sennheiser HD 559

The Sennheiser HD 505 is the better-sounding option. A preference score of 88 in oratory1990’s measurement puts it among the closest to the Harman target, with the midrange from 200 Hz to 6 kHz within about 0.5 dB of target, so vocals and instruments sound natural and unforced. The catch: Sub-bass under 60 Hz sits about 6 dB below target, so deep synth bass and kick drum weight are thin.

Why pick the Sennheiser HD 559: Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural. The catch: Discontinued, so it is mainly found used.

Buy the Sennheiser HD 505. It is rated higher for sound quality; the Sennheiser HD 559 is no longer sold new.

Looking for alternatives? See the complete Headphones rankings.

Specifications Side By Side

Sennheiser HD 505 Sennheiser HD 559
Price$205.55Discontinued
Ranked#31 of 429 in Over-Ear Headphones#411 of 429 in Over-Ear Headphones
Form FactorOver-earOver-ear
Harman Preference Score88 (measured by oratory1990, via AutoEQ)27 (measured by oratory1990, via AutoEQ)
Deviation From Target1.85 dB standard deviation4.40 dB standard deviation
Tonal Tilt+0.17 (negative is warmer, positive brighter)-2.07 (negative is warmer, positive brighter)
Sub-bass ExtensionFalls 6 dB below target at 32 Hz (-6.5 dB at 30 Hz)Falls 6 dB below target at 28 Hz (-5.7 dB at 30 Hz)
ConnectionWiredWired
BackOpenOpen
Driver TypeDynamicDynamic
Impedance120 ohms50 ohms
Sensitivity107.9 dB SPL/V-
Weight0.5 lbs (237 g)9.9 oz
Frequency Response12Hz - 38.5kHz (Manufacturer specified)14Hz - 26kHz
Drivers-1 x 38mm dynamic

More worthwhile head-to-heads for Sennheiser HD 505:

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The Two Headphones In Full

Sennheiser HD 505: $205.55 Amazon $205.55 eBay

Sennheiser HD 505 ranking card

Pros: A preference score of 88 in oratory1990’s measurement puts it among the closest to the Harman target, with the midrange from 200 Hz to 6 kHz within about 0.5 dB of target, so vocals and instruments sound natural and unforced. The 120 ohm impedance and 107.9 dB per volt sensitivity let it run from a decent DAC or portable amp, and at 237 g the open-back design is light.

Cons: Sub-bass under 60 Hz sits about 6 dB below target, so deep synth bass and kick drum weight are thin. A narrow 9 dB dip near 9.9 kHz and treble running about 2.7 dB low soften cymbals and make it a little dark on airy recordings. Being open-back it leaks sound and offers no isolation.

BackOpen
ConnectionWired
Deviation From Target1.85 dB standard deviation
Driver TypeDynamic
Form FactorOver-ear
Frequency Response12Hz - 38.5kHz (Manufacturer specified)
Harman Preference Score88 (measured by oratory1990, via AutoEQ)
Impedance120 ohms
Sensitivity107.9 dB SPL/V
Sub-bass ExtensionFalls 6 dB below target at 32 Hz (-6.5 dB at 30 Hz)
Tonal Tilt+0.17 (negative is warmer, positive brighter)
Weight0.5 lbs (237 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.

FilterFrequencyGainQ
Low shelf105 Hz+7.0 dB0.70
Peak9,030 Hz+3.9 dB2.25
Peak84 Hz-2.7 dB0.44
Peak560 Hz+1.1 dB1.13
Peak1,256 Hz-1.5 dB1.71
High shelf10,000 Hz-2.5 dB0.70
Peak3,218 Hz-1.8 dB2.89
Peak5,479 Hz-2.6 dB4.99
Peak4,145 Hz+2.5 dB5.93
Peak6,870 Hz+2.4 dB5.70

Sennheiser HD 559 Discontinued eBay

Sennheiser HD 559 ranking card

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.

Released2016 (10 years ago)
BackOpen
ConnectionWired
Deviation From Target4.40 dB standard deviation
Driver TypeDynamic
Drivers1 x 38mm dynamic
Form FactorOver-ear
Frequency Response14Hz - 26kHz
Harman Preference Score27 (measured by oratory1990, via AutoEQ)
Impedance50 ohms
Sub-bass ExtensionFalls 6 dB below target at 28 Hz (-5.7 dB at 30 Hz)
Tonal Tilt-2.07 (negative is warmer, positive brighter)
Weight9.9 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.

FilterFrequencyGainQ
Low shelf105 Hz+16.8 dB0.70
Peak57 Hz-15.5 dB0.29
Peak8,586 Hz+6.4 dB1.38
Peak1,333 Hz+5.9 dB1.86
Peak1,855 Hz+4.2 dB3.75
High shelf10,000 Hz+1.1 dB0.70
Peak2,971 Hz-3.3 dB4.77
Peak3,736 Hz+2.6 dB6.00
Peak5,108 Hz-1.3 dB5.23
Peak2,286 Hz+1.1 dB5.82