Sennheiser HD 505 vs Sennheiser HD 800

Last updated: October 13, 2026

Short answer: the Sennheiser HD 505. It ranks #31 of 382 over-ear headphones by sound quality (rated 4.3/5) at $205.55 and is still sold new; the Sennheiser HD 800 ranks #144 (rated 3.8/5) and is discontinued, so it is only an option used. The Sennheiser HD 800’s replacement, the Sennheiser HD 800 S, is rated 4.2/5 at $1,799.95.

Sennheiser HD 505 vs Sennheiser HD 800

The Sennheiser HD 505 is the better-sounding pick. 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. Watch for: Sub-bass under 60 Hz sits about 6 dB below target, so deep synth bass and kick drum weight are thin.

The case for the Sennheiser HD 800: The median of 6 hobbyist measurements gives it a very good Harman preference score of 78 with a 2.76 dB spread. The tradeoff: Discontinued, so it is mainly found used.

Buy the Sennheiser HD 505. It is rated higher for sound quality, and the Sennheiser HD 800 is discontinued, so it is only available used.

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

Specifications Side By Side

Sennheiser HD 505 Sennheiser HD 800
Price$205.55Discontinued
Ranked#31 of 382 in Over-Ear Headphones#144 of 382 in Over-Ear Headphones
Form FactorOver-earOver-ear
Harman Preference Score88 (measured by oratory1990, via AutoEQ)78 (measured by crinacle, via AutoEQ)
Deviation From Target1.85 dB standard deviation2.76 dB standard deviation
Tonal Tilt+0.17 (negative is warmer, positive brighter)+0.13 (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 36 Hz (-6.8 dB at 30 Hz)
ConnectionWiredWired
BackOpenOpen
Driver TypeDynamicDynamic
Impedance120 ohms300 ohms
Sensitivity107.9 dB SPL/V102 dB/Vrms
Weight0.5 lbs (237 g)0.7 lbs (330 g)
Frequency Response12Hz - 38.5kHz (Manufacturer specified)14Hz - 44.1kHz (-3 dB)
Drivers-1 x 56mm dynamic

How Sennheiser HD 505 compares with other leading options:

Prices on this page were last checked October 12, 2026 at 4:13 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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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 800 Discontinued eBay

Sennheiser HD 800 ranking card

Newer model: the Sennheiser HD 800 S, ranked higher, rated 4.2/5. See every Sennheiser HD 800 generation.

Pros: The median of 6 hobbyist measurements gives it a very good Harman preference score of 78 with a 2.76 dB spread. Upper treble lifts about 2.6 dB for extra air and sparkle. It uses 1 x 56mm dynamic.

Cons: Discontinued, so it is mainly found used. Sub-bass is 6.8 dB short at 30 Hz, so deep bass lacks rumble.

Released2009 (17 years ago)
BackOpen
ConnectionWired
Deviation From Target2.76 dB standard deviation
Driver TypeDynamic
Drivers1 x 56mm dynamic
Form FactorOver-ear
Frequency Response14Hz - 44.1kHz (-3 dB)
Harman Preference Score78 (measured by crinacle, via AutoEQ)
Impedance300 ohms
Sensitivity102 dB/Vrms
Sub-bass ExtensionFalls 6 dB below target at 36 Hz (-6.8 dB at 30 Hz)
Tonal Tilt+0.13 (negative is warmer, positive brighter)
Weight0.7 lbs (330 g)
EQ preset to match the Harman target

Set a preamp of -5.5 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+5.7 dB0.70
Peak2,101 Hz+4.5 dB1.15
Peak172 Hz-2.7 dB0.52
Peak5,878 Hz-8.9 dB4.73
Peak1,165 Hz-0.5 dB1.74
High shelf10,000 Hz-2.7 dB0.70
Peak49 Hz-0.7 dB1.93
Peak62 Hz+1.6 dB6.00
Peak3,412 Hz+1.1 dB5.71
Peak4,116 Hz-1.0 dB6.00