A comparison of specs, key information, reviews, and best pricing from top retailers
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Quantum 100
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ZSN Pro
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What we think

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

If you prioritize a built-in microphone for clear calls and gaming, the JBL Quantum 100 is the better choice as it offers excellent mic quality. However, if you're seeking superior overall sound quality, especially for music listening, the KZ ZSN Pro stands out with its higher score in that area. Both options are wired and offer similar levels of noise isolation and comfort, but the JBL Quantum 100 scores higher in gaming, while the KZ has a detachable cable and better build quality, which might be important if you're looking for durability. Neither has active noise cancelling or wireless capabilities, so consider these tradeoffs based on your specific needs such as gaming, calls, music, or durability. 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 Quantum 100
  • Very good for gaming
Advantages of the KZ ZSN Pro
  • The KZ ZSN Pro has no clear advantages over the JBL Quantum 100.

Key differences

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Music

7.0
Quantum 100
ZSN Pro
7.7
The KZ ZSN Pro and JBL Quantum 100 are both good for music, though the KZ ZSN Pro is somewhat better.

Gaming

8.5
Quantum 100
ZSN Pro
6.0
The JBL Quantum 100 is very good for gaming, while the KZ ZSN Pro is only fair.

Phone Calls

5.5
Quantum 100
ZSN Pro
3.1
The JBL Quantum 100 and KZ ZSN Pro are both poor for phone calls, though the JBL Quantum 100 is somewhat better.

Build Quality

6.5
Quantum 100
ZSN Pro
9.0
The KZ ZSN Pro has excellent build quality, while the JBL Quantum 100 has only fair build quality.
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Key similarities

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Podcasts and Audiobooks

4.5
Quantum 100
ZSN Pro
4.9
The KZ ZSN Pro and JBL Quantum 100 are both poor for podcasts and audiobooks.

TV and Video

7.1
Quantum 100
ZSN Pro
7.4
The KZ ZSN Pro and JBL Quantum 100 are both good for TV and video.

Noise Reduction

5.3
Quantum 100
ZSN Pro
5.3
The JBL Quantum 100 and KZ ZSN Pro are both poor for noise reduction.

Cost

$23
Quantum 100
ZSN Pro
$25
Product imageProduct image

$0

$10

$20

$30

$40

$50

The JBL Quantum 100 has a price of $23 and the KZ ZSN Pro costs $25.

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How the JBL Quantum 100 and the KZ ZSN Pro compare to other earbuds and headphones

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Spec Comparison

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JBL Quantum 100KZ ZSN Pro
JBL Quantum 100KZ ZSN Pro

GENERAL

Price
$23
$25
Brand
JBLKZ
Release Date
May 1, 2020March 1, 2019
Form Factor
HeadphonesEarbuds
Connectivity
WiredWired

SOUND

Music Score
7/107.8/10
Phone Calls Score
5.5/103.2/10
Gaming Score
8.6/106/10
TV and Video Score
7.2/107.5/10
Exercise Score
4/104.3/10

FEATURES

Active Noise Cancelling
NoNo
Noise Reduction Score
5.3/105.3/10
Virtual Surround
NoN/A
Mic Quality
10/10N/A

BUILD AND DESIGN

Build Quality
6.5/109/10
Comfort score
6/107.6/10
Size
N/ALarge
Weight (headset or single earbud)
220 Grams7 Grams
Microphone style
BoomN/A

Shopping

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JBL Quantum 100

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Dig into reviews and images

CNN Underscored

Wes Davis | July 2023
"I appreciate a functional piece of tech as much as I do gear on the bleeding edge, and the JBL Quantum 100 certainly falls in the former category. The sound is reasonably good, the built-in microphone is surprisingly reliable and it has a thoughtful design for the price. It lacks the convenience of Bluetooth, sure, but sometimes it’s nice not to have to worry about the finicky nature of wireless communication and go with good old hard-wired tech."

KZ ZSN Pro

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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 JBL Quantum 100 or the KZ ZSN Pro

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.

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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
111,200
Recommendations made
16,680
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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