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K712 Pro
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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 January 10, 2024·

The AKG K712 Pro is a premium option with a wider soundstage and higher overall sound quality, particularly suited for an immersive listening experience in music and TV. However, it is open-back, which means it leaks sound and doesn't isolate noise well, making it not ideal for noisy environments. The Sennheiser HD 400S, while less expensive, provides good sound quality, a closed-back design for better noise isolation, and an integrated microphone that makes it more suitable for calls and meetings. It's also more portable due to its foldability. If budget is a concern and you need versatility for different uses including better isolation, the Sennheiser HD 400S is a solid choice. If you prioritize top-tier sound for home use, especially in quiet environments, and you're willing to invest more, the AKG K712 Pro excels. 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 AKG K712 Pro
  • Very good for TV and video
Advantages of the Sennheiser HD 400S
  • Very good for phone calls
  • Very good for gaming
  • Good for air travel

Key differences

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K712 Pro
HD 400S
The AKG K712 Pro and Sennheiser HD 400S are both good for music, though the AKG K712 Pro is somewhat better.


K712 Pro
HD 400S
The Sennheiser HD 400S is very good for gaming, while the AKG K712 Pro is good.

Phone Calls

K712 Pro
HD 400S
The Sennheiser HD 400S is very good for phone calls, while the AKG K712 Pro is poor.

TV and Video

K712 Pro
HD 400S
The AKG K712 Pro is very good for TV and video, while the Sennheiser HD 400S is good.

Noise Reduction

K712 Pro
HD 400S
The Sennheiser HD 400S and AKG K712 Pro are both poor for noise reduction, though the Sennheiser HD 400S is somewhat better.


K712 Pro
HD 400S
Product image
Product image









The AKG K712 Pro has a price of $272 and the Sennheiser HD 400S costs $70.
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Key similarities

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Podcasts and Audiobooks

K712 Pro
HD 400S
The AKG K712 Pro and Sennheiser HD 400S are both good for podcasts and audiobooks.

Build Quality

K712 Pro
HD 400S
The AKG K712 Pro and Sennheiser HD 400S both have very good build quality.

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How the AKG K712 Pro and the Sennheiser HD 400S compare to other earbuds and headphones

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Spec Comparison

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AKG K712 ProSennheiser HD 400S
AKG K712 ProSennheiser HD 400S


Release Date
July 1, 2013January 1, 2019
Form Factor


Music Score
Phone Calls Score
Gaming Score
TV and Video Score
Exercise Score


Active Noise Cancelling
Noise Reduction Score
Virtual Surround
Mic Quality


Build Quality
Comfort score
Weight (headset or single earbud)
235 Grams213 Grams
Microphone style
Waterproof Rating


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AKG K712 Pro

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Dig into reviews and images


Michael | October 2013
"AKG has created a mini-masterpiece in my opinion. I enjoy this headphone a great deal and it will become my go-to reference headphone for the time being. She is slick, sexy, well-balanced, and crazy comfortable."

Sennheiser HD 400S

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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 AKG K712 Pro 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.

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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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