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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you value excellent overall sound quality and a wide soundstage for an immersive music experience, the HifiMan Sundara headphones are superior to the Koss KSC75, but the Sundara's higher price reflects this premium audio experience. In contrast, the Koss KSC75 offers good sound quality at a budget-friendly price and a clip-on design that's more portable. Neither have a mic or built-in controls; for calls or gaming, you may look elsewhere. Consider as well the HifiMan Sundara's open-back design means little noise isolation, unsuitable for noisy environments, whereas the Koss's portability makes them convenient for active use despite similar noise isolation. 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 HifiMan Sundara
- Excellent for music
- Good for gaming
- Very good for TV and video
Advantages of the Koss KSC75
- The Koss KSC75 has no clear advantages over the HifiMan Sundara.
Key differences
Music
9.3
8.3
The HifiMan Sundara is excellent for music, while the Koss KSC75 is very good.
Gaming
7.2
6.4
The HifiMan Sundara is good for gaming, while the Koss KSC75 is only fair.
TV and Video
8.8
7.7
The HifiMan Sundara is very good for TV and video, while the Koss KSC75 is good.
Cost
$279
$20
$0
$100
$200
$300
$400
The HifiMan Sundara has a price of $279 and the Koss KSC75 costs $20.
Build Quality
8.2
5.6
The HifiMan Sundara has very good build quality, while the Koss KSC75 has poor build quality.
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Key similarities
Phone Calls
4.9
4.8
The HifiMan Sundara and Koss KSC75 are both poor for phone calls.
Podcasts and Audiobooks
7.8
7.5
The HifiMan Sundara and Koss KSC75 are both good for podcasts and audiobooks.
Noise Reduction
2.5
2.5
The HifiMan Sundara and Koss KSC75 are both poor for noise reduction.
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How the HifiMan Sundara and the Koss KSC75 compare to other earbuds and headphones
Spec Comparison
 |  | |
| HifiMan Sundara | Koss KSC75 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$279 | $20 | ||
Brand | |||
Brand | HifiMan | Koss | |
Release Date | |||
Release Date | May 1, 2020 | January 1, 2005 | |
Form Factor | |||
Form Factor | Headphones | Headphones | |
Connectivity | |||
Connectivity | Wired | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 9.3/10 | 8.3/10 | |
Phone Calls Score | |||
Phone Calls Score | 5/10 | 4.9/10 | |
Gaming Score | |||
Gaming Score | 7.2/10 | 6.5/10 | |
TV and Video Score | |||
TV and Video Score | 8.8/10 | 7.7/10 | |
Exercise Score | |||
Exercise Score | 4.5/10 | 4.3/10 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | No | |
Noise Reduction Score | |||
Noise Reduction Score | 2.5/10 | 2.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.2/10 | 5.7/10 | |
Comfort score | |||
Comfort score | 8.4/10 | 7/10 | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 394.6 Grams | 45.3 Grams | |
Waterproof Rating | |||
Waterproof Rating | 0 | 0 | |
Dustproof Rating | |||
Dustproof Rating | 0 | 0 | |
Shopping
HifiMan Sundara
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Dig into reviews and images
Sound Guys
Christian Thomas | July 2023
"The HiFiMan Sundara is the set of headphones to get if you want high-end audio, but don't want to shell out a king's ransom for it. These planar magnetic headphones are comfortable, straightforward, and excellent performers."
Koss KSC75
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Dig into reviews and images
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 HifiMan Sundara or the Koss KSC75
About HifiMan
HiFiMAN is a Chinese, high-end, audio product manufacturer, with 20 years of experience, that specializes in amplifiers, digital audio players and planar magnetic headphones, some of which have become a staple in the audiophile community such as the entry-level Sundara, the midrange Edition X, and the very well-regarded, high-end, Arya.
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
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
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Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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