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Accentum Plus
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HD 400S
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What we think

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The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·

If you value wireless freedom and the convenience of built-in controls with a premium build quality, go for the Sennheiser Accentum Plus; they also support a lossless codec and active noise cancelling which are great for immersive listening and travel. However, if cost is a concern and you don't mind a wired connection without active noise cancelling, the HD 400S is significantly more affordable and still offers very good sound and comfort. Keep in mind that the Accentum Plus provides a better experience for calls and gaming due to its low latency and mic quality. Give Feedback

this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the Sennheiser Accentum Plus
  • Excellent for phone calls
  • Excellent for gaming
  • Very good for TV and video
  • Very good for exercise
  • Excellent for air travel
  • Excellent for podcasts and audiobooks
Advantages of the Sennheiser HD 400S
  • The Sennheiser HD 400S has no clear advantages over the Sennheiser Accentum Plus.

Key differences

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Phone Calls

9.2
Accentum Plus
HD 400S
8.2
The Sennheiser Accentum Plus is excellent for phone calls, while the Sennheiser HD 400S is very good.

Podcasts and Audiobooks

9.3
Accentum Plus
HD 400S
7.6
The Sennheiser Accentum Plus is excellent for podcasts and audiobooks, while the Sennheiser HD 400S is good.

TV and Video

8.8
Accentum Plus
HD 400S
7.6
The Sennheiser Accentum Plus is very good for TV and video, while the Sennheiser HD 400S is good.

Noise Reduction

8.3
Accentum Plus
HD 400S
5.3
The Sennheiser Accentum Plus is very good for noise reduction, while the Sennheiser HD 400S is poor.

Battery

50.0 Hours
Accentum Plus
HD 400S
N/A
The Sennheiser Accentum Plus has 50 hours of battery life. The Sennheiser HD 400S does not have a battery.

Cost

$230
Accentum Plus
HD 400S
$50
Product image
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$100

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$250

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$350

The Sennheiser Accentum Plus has a price of $230 and the Sennheiser HD 400S costs $50.
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Key similarities

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Music

7.5
Accentum Plus
HD 400S
7.1
The Sennheiser Accentum Plus and Sennheiser HD 400S are both good for music.

Gaming

9.1
Accentum Plus
HD 400S
8.6
Although they have very similar scores, PerfectRec considers Sennheiser Accentum Plus to be excellent for gaming, while the Sennheiser HD 400S is very good.

Build Quality

8.9
Accentum Plus
HD 400S
8.5
The Sennheiser Accentum Plus and Sennheiser HD 400S both have very good build quality.

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How the Sennheiser Accentum Plus and the Sennheiser HD 400S compare to other earbuds and headphones

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Spec Comparison

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Sennheiser Accentum PlusSennheiser HD 400S
Sennheiser Accentum PlusSennheiser HD 400S

GENERAL

Price
$230
$50
Brand
SennheiserSennheiser
Release Date
February 1, 2024January 1, 2019
Form Factor
HeadphonesHeadphones
Connectivity
Wired + WirelessWired

SOUND

Music Score
7.5/107.2/10
Phone Calls Score
9.3/108.2/10
Gaming Score
9.1/108.7/10
TV and Video Score
8.8/107.7/10
Exercise Score
8/104.2/10

PERFORMANCE

Battery life
50 HoursN/A
Wireless charging
NoN/A
Charging time
2 HoursN/A
Bluetooth version
5.2N/A

FEATURES

Active Noise Cancelling
YesNo
Noise Reduction Score
8.4/105.3/10
Virtual Surround
NoNo
Android App
YesN/A
iOS App
YesN/A
Mic Quality
8.5/108.5/10

BUILD AND DESIGN

Build Quality
8.9/108.5/10
Comfort score
7.6/108.4/10
Weight (headset or single earbud)
227 Grams213 Grams
Microphone style
IntegratedIntegrated
Waterproof Rating
00

Shopping

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Sennheiser HD 400S

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Dig into reviews and images

Headphone Dungeon

Jim | August 2022
"Sennheiser has done it again. The HD 400S performs well beyond its price range and is one of the better budget model headphones I’ve tried. It has very few bells and whistles and offers a simple means of listening that still delivers amazing clarity and quality. If you need a good first pair of headphones or need something that you can take out of the house, then the HD 400S is definitely for you."

Get a great deal on the Sennheiser Accentum Plus or the Sennheiser HD 400S

About Sennheiser

A family-owned company, Sennheiser is a German, high fidelity, audio equipment manufacturer founded in 1945. Their consumer audio division is now owned by the Swiss hearing aid and cochlear implant manufacturer Sonova. Sennheiser offers a wide variety of, very high quality, audio equipment solutions, from headphones to earbuds, full sets of monitoring speakers, amplifiers and microphones. They also make what is widely regarded as the best, and most expensive, headphones in existence, the HE-1 Orpheus, costing a whopping $59,000 dollars.

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Why trust us

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This information was produced and vetted by the PerfectRec earbuds & headphones team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest earbuds or headphones information and makes it digestible for you.

By the numbers

108
Earbuds and headphones evaluated
11,340
Earbuds and headphones stats compiled
15
Proprietary Earbuds and headphones ratings developed
122,900
Recommendations made
18,435
Consumer hours saved

About the Earbuds or Headphones team

Joe Golden, Ph.D

CEO and Earbuds and Headphones Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.

Jason Lew

Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.

Chandradeep Chowdhury

Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.

Luis Torres

Earbuds and Headphones Expert
Luis is a Mexico-based headphones expert. He’s been making headphone recommendations for five years and has close to 100 pairs in his personal collection.

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