A comparison of specs, key information, reviews, and best pricing from top retailers
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Company ProductName Specs
Company ProductName Specs
Advantages of the Marshall Major IV
- Very good for air travel
Advantages of the Thieaudio Monarch Mk II
- Best in class for music
- Very good for TV and video
- Good for podcasts and audiobooks
Key differences
Music
6.6
9.5
The Thieaudio Monarch Mk II is best in class for music, while the Marshall Major IV is only fair.
Gaming
5.4
6.7
The Thieaudio Monarch Mk II is only fair for gaming, while the Marshall Major IV is poor.
Phone Calls
5.8
5.1
The Marshall Major IV and Thieaudio Monarch Mk II are both poor for phone calls, though the Marshall Major IV is somewhat better.
Podcasts and Audiobooks
6.1
7.9
The Thieaudio Monarch Mk II is good for podcasts and audiobooks, while the Marshall Major IV is only fair.
TV and Video
5.7
8.8
The Thieaudio Monarch Mk II is very good for TV and video, while the Marshall Major IV is poor.
Battery
80.0 Hours
N/A
The Marshall Major IV has 80 hours of battery life. The Thieaudio Monarch Mk II does not have a battery.
Cost
$100
$999
$50
$100
$150
$200
$250
$300
$350
$400
The Marshall Major IV has a price of $100 and the Thieaudio Monarch Mk II costs $999.
Build Quality
8.5
9.0
The Thieaudio Monarch Mk II has excellent build quality, while the Marshall Major IV has very good build quality.
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Key similarities
Noise Reduction
5.6
6.0
Although they have very similar scores, PerfectRec considers Thieaudio Monarch Mk II to be only fair for noise reduction, while the Marshall Major IV is poor.
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How the Marshall Major IV and the Thieaudio Monarch Mk II compare to other earbuds and headphones
Spec Comparison
 |  | |
| Marshall Major IV | Thieaudio Monarch Mk II |
GENERAL | |||
|---|---|---|---|
| Price | |||
$100 | $999 | ||
Brand | |||
Brand | Marshall | Thieaudio | |
Release Date | |||
Release Date | October 1, 2021 | October 1, 2020 | |
Form Factor | |||
Form Factor | Headphones | Earbuds | |
Connectivity | |||
Connectivity | Wired + Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.6/10 | 9.5/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.8/10 | 5.1/10 | |
Gaming Score | |||
Gaming Score | 5.5/10 | 6.8/10 | |
TV and Video Score | |||
TV and Video Score | 5.8/10 | 8.9/10 | |
Exercise Score | |||
Exercise Score | 6.3/10 | 4.5/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 80 Hours | N/A | |
Wireless charging | |||
Wireless charging | Yes | N/A | |
Charging time | |||
Charging time | 3 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 | 5.7/10 | 6/10 | |
Virtual Surround | |||
Virtual Surround | No | N/A | |
Android App | |||
Android App | No | N/A | |
iOS App | |||
iOS App | No | N/A | |
Mic Quality | |||
Mic Quality | 9/10 | N/A | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 9/10 | |
Comfort score | |||
Comfort score | 7.8/10 | 7.6/10 | |
Size | |||
Size | N/A | Large | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 165 Grams | 9 Grams | |
Microphone style | |||
Microphone style | Integrated | N/A | |
Shopping
Marshall Major IV
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Dig into reviews and images
Sound Guys
Jasper Lastoria | September 2023
"The Marshall Major IV shares quite a bit in common with its predecessor, but a key upgrade appears to be softer ear cushions. They make upgrading worth it. As a set of basic wired or wireless headphones the Major IV ticks most boxes by remaining easy to use, and fairly comfortable (at least, as on-ear headphones go)."
Thieaudio Monarch Mk II
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Dig into reviews and images
Audiophile On
Audiophile On | August 2021
"No other earphone I have listened to in the past 12 months has given me as much joy as the Thieaduio Monarch MKII. One of those IEMs will make you question where we can go from here. The sound is jaw-dropping, leaving you wanting more and more. It makes you want to run through your entire music library and reevaluate. It makes you not feel bad about paying full price for them, especially in a hobby where buyers' remorse is genuine. For me, it's top tier, rivaled by a few but not surpassed."
Get a great deal on the Marshall Major IV or the Thieaudio Monarch Mk II
About Thieaudio
Thieaudio is the in-house brand of Linsoul Audio, a Chinese earbud and headphone retailer specializing in what the community lovingly calls Chi-fi, that is high fidelity brands out of China. Thieaudio was established in 2019 as the creative engineering branch of Linsoul. As of today, they market three different lines of earbuds, Voyager, Legacy and the extremely well-received Monarch.
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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.
By the numbers
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Earbuds and headphones evaluated
11,340
Earbuds and headphones stats compiled
15
Proprietary Earbuds and headphones ratings developed
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Recommendations made
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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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