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Timeless
Company ProductName Specs




KSC75
Company ProductName Specs




What we think

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The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·

Choosing between the 7hz Timeless earbuds and the Koss KSC75 headphones depends on what you value most. The 7hz Timeless comes at a premium price, offering superior overall sound quality and build quality, better soundstage, and music listening experience. They're more suitable if you're seeking a high-fidelity audio experience. However, they're larger, have a closed-back design leading to better noise isolation but less natural sound than open-back headphones. On the other hand, the Koss KSC75 is much more affordable with good sound quality and a comfortable clip-on open-back design, resulting in a more natural sound but less noise isolation, and is lighter which can be beneficial for extended wear. Neither option has a microphone or active noise cancelling, and both require a wired connection. Consider the 7hz Timeless if audio quality is paramount and your budget allows, or the Koss KSC75 if you're looking for affordability and a lighter, more natural listening experience. 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 7hz Timeless
  • The 7hz Timeless has no clear advantages over the Koss KSC75.
Advantages of the Koss KSC75
  • Good for podcasts and audiobooks

Key differences

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Phone Calls

4.3
Timeless
KSC75
4.8
The Koss KSC75 and 7hz Timeless are both poor for phone calls, though the Koss KSC75 is somewhat better.

Podcasts and Audiobooks

6.8
Timeless
KSC75
7.5
The Koss KSC75 is good for podcasts and audiobooks, while the 7hz Timeless is only fair.

Noise Reduction

5.3
Timeless
KSC75
2.5
The 7hz Timeless and Koss KSC75 are both poor for noise reduction, though the 7hz Timeless is somewhat better.

Cost

$200
Timeless
KSC75
$20
Product image
Product image

$0

$50

$100

$150

$200

$250

$300

The 7hz Timeless has a price of $200 and the Koss KSC75 costs $20.

Build Quality

8.5
Timeless
KSC75
5.6
The 7hz Timeless has very good build quality, while the Koss KSC75 has poor build quality.
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Key similarities

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Music

8.6
Timeless
KSC75
8.3
The 7hz Timeless and Koss KSC75 are both very good for music.

Gaming

6.6
Timeless
KSC75
6.4
The 7hz Timeless and Koss KSC75 are both only fair for gaming.

TV and Video

7.8
Timeless
KSC75
7.7
The 7hz Timeless and Koss KSC75 are both good for TV and video.

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How the 7hz Timeless and the Koss KSC75 compare to other earbuds and headphones

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Spec Comparison

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7hz TimelessKoss KSC75
7hz TimelessKoss KSC75

GENERAL

Price
$200
$20
Brand
7hzKoss
Release Date
August 1, 2021January 1, 2005
Form Factor
EarbudsHeadphones
Connectivity
WiredWired

SOUND

Music Score
8.6/108.3/10
Phone Calls Score
4.3/104.9/10
Gaming Score
6.7/106.5/10
TV and Video Score
7.8/107.7/10
Exercise Score
4.3/104.3/10

FEATURES

Active Noise Cancelling
NoNo
Noise Reduction Score
5.3/102.5/10

BUILD AND DESIGN

Build Quality
8.5/105.7/10
Comfort score
7/107/10
Size
LargeN/A
Weight (headset or single earbud)
5.5 Grams45.3 Grams
Waterproof Rating
00

Shopping

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7hz Timeless

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Dig into reviews and images

Headphonesty

Kazi Mahbub Mutakabbir | May 2023
"7Hz picked a bold name for the Timeless and frankly, got very close to justifying their word choice. Most importantly, the Timeless are good to go in stock form, so you don’t have to worry about source-matching and such. I can recommend the 7Hz Timeless to those who do not mind a dash of brightness up top, want a taste of planar in IEM form, and want one of the most resolving pair of earphones in the $150 - $300 price range."

Koss KSC75

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InEar Fidelity

Crinacle | June 2022
"Let’s not insult the KSC75 by saying that it’s simply good for the price… because it’s far more than that. It basically has a monopoly at its asking price, and could still give modern budget headphones a run for their money 15 years after its release. The KSC75 is the world’s best not-headphone."

Get a great deal on the 7hz Timeless or the Koss KSC75

About Koss

Koss is an American headphone manufacturer established in 1953. In 1958, they created the first set of stereophones, that is headphones with stereo sound, and in 1984 they released the world-famous Porta Pro, a set of on-ear headphones that has remained essentially unchanged for more than 30 years and that is still made, sold and loved by many audio enthusiasts around the world today.

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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
65,300
Recommendations made
9,795
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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