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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you're looking for earbuds with a more enclosed design and better microphone quality for calls and meetings, the Moondrop Chu is the better option, plus they are more portable due to their smaller size. However, if you prefer headphones with a more open design that often provides a wider soundstage, offering a feeling of space in the audio, the Koss KSC75 might suit you, but they have no built-in microphone for calls. Both have similar overall sound quality and neither are particularly well-suited for exercise or noise isolation. The KSC75 is less portable and has a slightly longer cable. Neither option supports wireless connectivity or noise cancelling technology. 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
Advantages of the Moondrop Chu
- Very good for phone calls
- Very good for gaming
Key differences
Gaming
6.4
8.0
The Moondrop Chu is very good for gaming, while the Koss KSC75 is only fair.
Phone Calls
4.8
8.8
The Moondrop Chu is very good for phone calls, while the Koss KSC75 is poor.
Noise Reduction
2.5
6.0
The Moondrop Chu is only fair for noise reduction, while the Koss KSC75 is poor.
Build Quality
5.6
8.5
The Moondrop Chu has very good build quality, while the Koss KSC75 has poor build quality.
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Key similarities
Music
8.3
7.9
Although they have very similar scores, PerfectRec considers Koss KSC75 to be very good for music, while the Moondrop Chu is good.
Podcasts and Audiobooks
7.5
7.6
The Moondrop Chu and Koss KSC75 are both good for podcasts and audiobooks.
TV and Video
7.7
7.5
The Koss KSC75 and Moondrop Chu are both good for TV and video.
Cost
$20
$18
$0
$10
$20
$30
$40
$50
The Koss KSC75 has a price of $20 and the Moondrop Chu costs $18.
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How the Koss KSC75 and the Moondrop Chu compare to other earbuds and headphones
Spec Comparison
 |  | |
| Koss KSC75 | Moondrop Chu |
GENERAL | |||
|---|---|---|---|
| Price | |||
$20 | $18 | ||
Brand | |||
Brand | Koss | Moondrop | |
Release Date | |||
Release Date | January 1, 2005 | April 1, 2022 | |
Form Factor | |||
Form Factor | Headphones | Earbuds | |
Connectivity | |||
Connectivity | Wired | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 8.3/10 | 8/10 | |
Phone Calls Score | |||
Phone Calls Score | 4.9/10 | 8.9/10 | |
Gaming Score | |||
Gaming Score | 6.5/10 | 8.1/10 | |
TV and Video Score | |||
TV and Video Score | 7.7/10 | 7.6/10 | |
Exercise Score | |||
Exercise Score | 4.3/10 | 4.4/10 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | No | |
Noise Reduction Score | |||
Noise Reduction Score | 2.5/10 | 6/10 | |
Mic Quality | |||
Mic Quality | N/A | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 5.7/10 | 8.5/10 | |
Comfort score | |||
Comfort score | 7/10 | 7/10 | |
Size | |||
Size | N/A | Large | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 45.3 Grams | 8 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."
Moondrop Chu
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Dig into reviews and images
Sound Guys
Jasper Lastoria | September 2022
"These budget buds put the pressure on those premium priced in-ear monitors to really justify the cost disparity. Offering excellent sound quality at any price, the Moondrop Chu is both a perfect entry into the audio enthusiast hobby, and an all around good pick for music fans."
Get a great deal on the Koss KSC75 or the Moondrop Chu
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.
About Moondrop
Moondrop is a Chinese brand of smart audio equipment, portable audio players, earbuds and headphones started in 2015. During the last few years they have become one of the major players in what is lovingly referred to as the Chi-fi market, the bulk of Chinese companies that have managed to actually compete with the western manufacturers in both prices and superior quality. Products such as the Blessing II, Chu and Kato are among the most popular offerings of the brand, more popular among those users that wish for good quality audio that won't break the bank. Besides audio, the brand also works in what they call the ACGN field (Animation, Comics, Games and Short Novels).
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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
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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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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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