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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·
If wireless convenience is a priority and you prefer on-ear headphones with built-in controls for ease of use, choose the JBL 510BT; they're also more suited for exercising due to their sweatproof certification. However, if you're on a budget and prioritize overall sound quality, especially for music listening, and don't mind a wired connection, the Koss KSC75 is a better pick. The Koss KSC75 offers an open-back experience that can provide a more natural sound but with less noise isolation, while the JBL 510BT has a closed-back design that offers more privacy but a narrower soundstage. Keep in mind that the Koss KSC75 lacks features like a microphone and is less ideal for calls or noisy environments. 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 JBL 510BT
- Good for air travel
Advantages of the Koss KSC75
- Very good for music
- Good for TV and video
- Good for podcasts and audiobooks
Key differences
Music
6.2
8.3
The Koss KSC75 is very good for music, while the JBL 510BT is only fair.
Gaming
5.4
6.4
The Koss KSC75 is only fair for gaming, while the JBL 510BT is poor.
Podcasts and Audiobooks
5.6
7.5
The Koss KSC75 is good for podcasts and audiobooks, while the JBL 510BT is poor.
TV and Video
5.5
7.7
The Koss KSC75 is good for TV and video, while the JBL 510BT is poor.
Noise Reduction
5.3
2.5
The JBL 510BT and Koss KSC75 are both poor for noise reduction, though the JBL 510BT is somewhat better.
Battery
38.0 Hours
N/A
The JBL 510BT has 38 hours of battery life. The Koss KSC75 does not have a battery.
Cost
$30
$20
$0
$10
$20
$30
$40
$50
The JBL 510BT has a price of $30 and the Koss KSC75 costs $20.
Build Quality
6.5
5.6
The JBL 510BT has only fair build quality, while the Koss KSC75 has poor build quality.
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Key similarities
Phone Calls
5.1
4.8
The JBL 510BT and Koss KSC75 are both poor for phone calls.
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How the JBL 510BT and the Koss KSC75 compare to other earbuds and headphones
Spec Comparison
 |  | |
| JBL 510BT | Koss KSC75 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$30 | $20 | ||
Brand | |||
Brand | JBL | Koss | |
Release Date | |||
Release Date | February 1, 2021 | January 1, 2005 | |
Form Factor | |||
Form Factor | Headphones | Headphones | |
Connectivity | |||
Connectivity | Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.2/10 | 8.3/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.2/10 | 4.9/10 | |
Gaming Score | |||
Gaming Score | 5.5/10 | 6.5/10 | |
TV and Video Score | |||
TV and Video Score | 5.6/10 | 7.7/10 | |
Exercise Score | |||
Exercise Score | 5.8/10 | 4.3/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 38 Hours | N/A | |
Wireless charging | |||
Wireless charging | No | N/A | |
Charging time | |||
Charging time | 2 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | No | |
Noise Reduction Score | |||
Noise Reduction Score | 5.3/10 | 2.5/10 | |
Virtual Surround | |||
Virtual Surround | No | N/A | |
Mic Quality | |||
Mic Quality | 7/10 | N/A | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 6.5/10 | 5.7/10 | |
Comfort score | |||
Comfort score | 5.5/10 | 7/10 | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 158.7 Grams | 45.3 Grams | |
Microphone style | |||
Microphone style | Integrated | N/A | |
Waterproof Rating | |||
Waterproof Rating | 0 | 0 | |
Shopping
JBL 510BT
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Dig into reviews and images
SoundGuys
Sam Smart | September 2023
"The JBL Tune 510BT is affordable and compact, making it a great companion for a commute, so long as you don't need active noise canceling. If you wear glasses or have ear piercings, the on-ear design might not be comfortable, since the ear cups will squish your ears."
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 JBL 510BT or the Koss KSC75
About JBL
JBL is an American audio equipment manufacturer. Owned by Harman International which is, itself, owned by Samsung Electronics. JBL markets a wide array of monitoring speakers, professional headphones and consumer market headphones and earbuds. It was founded in 1946 by James Bullough Lansing (whose initials give the company its name) and has become one of the most prolific audio companies ever. Their products were responsible for audio during the 1969 Woodstock Festival.
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
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.
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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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