Sennheiser HD 598 vs Sennheiser HD 820

Last updated: October 13, 2026

Short answer: the Sennheiser HD 820, if you are buying new. The Sennheiser HD 598 ranks higher than it (#193 vs #327 of 382 over-ear headphones, 3.6/5 vs 2.7/5) but is discontinued, so only consider it used; the Sennheiser HD 820 is still sold new at $1,999.95.

Sennheiser HD 598 vs Sennheiser HD 820

The Sennheiser HD 598 is the better-sounding pick. Measured response gives it a solid Harman preference score of 73 with a 2.69 dB spread. The catch: Discontinued, so it is mainly found used.

The case for the Sennheiser HD 820: It is a closed back flagship, so it isolates and keeps sound in, unlike most headphones at this price. The tradeoff: In oratory1990’s measurement presence and treble sit about 3 dB below target from 3 to 10 kHz with a 6.6 dB dip near 11.7 kHz, so cymbals and detail sound dull and veiled.

Buy the Sennheiser HD 820, since the Sennheiser HD 598 is discontinued and only worth hunting down used.

Looking for alternatives? See the complete Headphones rankings.

Specifications Side By Side

Sennheiser HD 598 Sennheiser HD 820
PriceDiscontinued$1,999.95
Ranked#193 of 382 in Over-Ear Headphones#327 of 382 in Over-Ear Headphones
Form FactorOver-earOver-ear
BackOpenClosed
ConnectionWiredWired
Driver TypeDynamicDynamic
Impedance50 ohms300 ohms
Sensitivity112 dB/Vrms103 dB SPL/V
Frequency Response12Hz - 38.5kHz12Hz - 43.8kHz (Manufacturer specified)
Weight0.6 lbs (270 g)0.8 lbs (360 g)
Harman Preference Score73 (measured by oratory1990, via AutoEQ)52 (measured by oratory1990, via AutoEQ)
Deviation From Target2.69 dB standard deviation3.55 dB standard deviation
Tonal Tilt-0.49 (negative is warmer, positive brighter)-1.15 (negative is warmer, positive brighter)
Sub-bass ExtensionFalls 6 dB below target at 40 Hz (-8.2 dB at 30 Hz)Within 6 dB of target down to 20 Hz (+4.0 dB at 30 Hz)
Drivers-1 x 56mm dynamic
Built-in Microphone-No

More worthwhile head-to-heads for Sennheiser HD 598:

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.

As an eBay Partner, we may be compensated if you make a purchase.

The Two Headphones In Full

Sennheiser HD 598 Discontinued eBay

Sennheiser HD 598 ranking card

Pros: Measured response gives it a solid Harman preference score of 73 with a 2.69 dB spread.

Cons: Discontinued, so it is mainly found used. Sub-bass is 8.2 dB short at 30 Hz, so deep bass lacks rumble. Treble sits about 4.2 dB low, so it sounds a little dark.

Released2010 (16 years ago)
BackOpen
ConnectionWired
Deviation From Target2.69 dB standard deviation
Driver TypeDynamic
Form FactorOver-ear
Frequency Response12Hz - 38.5kHz
Harman Preference Score73 (measured by oratory1990, via AutoEQ)
Impedance50 ohms
Sensitivity112 dB/Vrms
Sub-bass ExtensionFalls 6 dB below target at 40 Hz (-8.2 dB at 30 Hz)
Tonal Tilt-0.49 (negative is warmer, positive brighter)
Weight0.6 lbs (270 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+6.7 dB0.70
Peak133 Hz-4.1 dB0.48
Peak9,039 Hz+5.9 dB1.59
Peak1,721 Hz+3.6 dB1.95
Peak5,447 Hz-3.8 dB4.67
High shelf10,000 Hz-1.3 dB0.70
Peak3,293 Hz-2.1 dB5.08
Peak66 Hz-0.8 dB2.52
Peak728 Hz+1.5 dB5.53
Peak98 Hz+1.1 dB4.37

Sennheiser HD 820: $1,999.95 Amazon $1,999.95 eBay

Sennheiser HD 820 ranking card

Pros: It is a closed back flagship, so it isolates and keeps sound in, unlike most headphones at this price. Bass sits 3 to 4 dB above the Harman target and holds down to 20 Hz, which suits warm and bassy taste profiles. It rates above the AKG K872 Pro and the Fostex TH900 at about the same price.

Cons: In oratory1990’s measurement presence and treble sit about 3 dB below target from 3 to 10 kHz with a 6.6 dB dip near 11.7 kHz, so cymbals and detail sound dull and veiled. The 300 ohm impedance needs a dedicated headphone amp to reach proper volume, and the Dan Clark Audio Voce and the Focal Stellia both rate higher. See headphone amps and DACs with enough power to drive it.

Released2018 (8 years ago)
BackClosed
Built-in MicrophoneNo
ConnectionWired
Deviation From Target3.55 dB standard deviation
Driver TypeDynamic
Drivers1 x 56mm dynamic
Form FactorOver-ear
Frequency Response12Hz - 43.8kHz (Manufacturer specified)
Harman Preference Score52 (measured by oratory1990, via AutoEQ)
Impedance300 ohms
Sensitivity103 dB SPL/V
Sub-bass ExtensionWithin 6 dB of target down to 20 Hz (+4.0 dB at 30 Hz)
Tonal Tilt-1.15 (negative is warmer, positive brighter)
Weight0.8 lbs (360 g)
EQ preset to match the Harman target

Set a preamp of -6.2 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-2.9 dB0.70
Peak147 Hz-8.6 dB1.79
Peak294 Hz+7.6 dB2.24
Peak5,732 Hz+1.8 dB0.18
Peak965 Hz-3.9 dB1.74
High shelf10,000 Hz-1.1 dB0.70
Peak74 Hz+6.7 dB2.74
Peak69 Hz-2.8 dB0.80
Peak3,823 Hz+3.6 dB5.33
Peak5,091 Hz-4.0 dB5.68