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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you often take calls or play online games, the KZ ZSN Pro with a microphone would give you the advantage of hands-free communication, while the Koss KSC75 lacks this feature. On the other hand, if you prioritize comfort and a more open sound, the Koss KSC75's clip-on design provides a unique fit and usually a more spacious soundstage compared to in-ear options like the KZ ZSN Pro. The latter may offer better noise isolation due to its in-ear design, which can be preferable in noisy environments. Consider where and how you'll be using the earbuds most often when making your choice. 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 Koss KSC75
- Very good for music
- Good for podcasts and audiobooks
Advantages of the KZ ZSN Pro (with Mic)
- Very good for gaming
Key differences
Music
8.3
7.7
The Koss KSC75 is very good for music, while the KZ ZSN Pro (with Mic) is good.
Gaming
6.4
8.0
The KZ ZSN Pro (with Mic) is very good for gaming, while the Koss KSC75 is only fair.
Podcasts and Audiobooks
7.5
4.9
The Koss KSC75 is good for podcasts and audiobooks, while the KZ ZSN Pro (with Mic) is poor.
Noise Reduction
2.5
5.3
The KZ ZSN Pro (with Mic) and Koss KSC75 are both poor for noise reduction, though the KZ ZSN Pro (with Mic) is somewhat better.
Cost
$20
$24
$0
$10
$20
$30
$40
$50
The Koss KSC75 has a price of $20 and the KZ ZSN Pro (with Mic) costs $24.
Build Quality
5.6
9.0
The KZ ZSN Pro (with Mic) has excellent build quality, while the Koss KSC75 has poor build quality.
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Key similarities
Phone Calls
4.8
5.1
The KZ ZSN Pro (with Mic) and Koss KSC75 are both poor for phone calls.
TV and Video
7.7
7.4
The Koss KSC75 and KZ ZSN Pro (with Mic) are both good for TV and video.
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How the Koss KSC75 and the KZ ZSN Pro (with Mic) compare to other earbuds and headphones
Spec Comparison
 |  | |
| Koss KSC75 | KZ ZSN Pro (with Mic) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$20 | $24 | ||
Brand | |||
Brand | Koss | KZ | |
Release Date | |||
Release Date | January 1, 2005 | March 1, 2019 | |
Form Factor | |||
Form Factor | Headphones | Earbuds | |
Connectivity | |||
Connectivity | Wired | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 8.3/10 | 7.8/10 | |
Phone Calls Score | |||
Phone Calls Score | 4.9/10 | 5.1/10 | |
Gaming Score | |||
Gaming Score | 6.5/10 | 8/10 | |
TV and Video Score | |||
TV and Video Score | 7.7/10 | 7.5/10 | |
Exercise Score | |||
Exercise Score | 4.3/10 | 4.3/10 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | No | |
Noise Reduction Score | |||
Noise Reduction Score | 2.5/10 | 5.3/10 | |
Mic Quality | |||
Mic Quality | N/A | 7/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 5.7/10 | 9/10 | |
Comfort score | |||
Comfort score | 7/10 | 7.6/10 | |
Size | |||
Size | N/A | Large | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 45.3 Grams | 7 Grams | |
Microphone style | |||
Microphone style | N/A | In-Line | |
Shopping
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."
KZ ZSN Pro (with Mic)
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Dig into reviews and images
PrimeAudio
David Becker | 2019
"Undoubtedly the focus and the star of the show, the ZSN Pro’s bass is big, bold and bangin’. The amount of gusto in the low end should satisfy anyone who likes a large lick of bass and even certified bassheads will probably get a kick out of this."
Get a great deal on the Koss KSC75 or the KZ ZSN Pro (with Mic)
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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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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