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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
The EPOS PC38X headphones offer a more immersive audio experience with a wider soundstage suitable for gaming and critical listening due to their open-back design. However, this also means they will let in more ambient noise and are not ideal for noisy environments. In contrast, the Sennheiser CX300S earbuds have a closed-back design which is better for noise isolation, making them a more suitable choice for commuting or use in noisy settings. If you're looking for a headset with a microphone for gaming or calls, the PC38X has a boom mic, something the CX300S lacks. Lastly, consider that the PC38X is significantly more expensive than the CX300S, so if budget is a concern, the Sennheiser CX300S provides good sound quality at a lower cost. 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 EPOS PC38X
- Best in class for music
- Best in class for phone calls
- Best in class for gaming
- Excellent for TV and video
- Good for podcasts and audiobooks
Advantages of the Sennheiser CX300S
- Good for air travel
Key differences
Music
9.5
6.9
The EPOS PC38X is best in class for music, while the Sennheiser CX300S is only fair.
Gaming
10.0
6.1
The EPOS PC38X is best in class for gaming, while the Sennheiser CX300S is only fair.
Phone Calls
10.0
3.0
The EPOS PC38X is best in class for phone calls, while the Sennheiser CX300S is poor.
Podcasts and Audiobooks
7.9
4.7
The EPOS PC38X is good for podcasts and audiobooks, while the Sennheiser CX300S is poor.
TV and Video
9.0
7.3
The EPOS PC38X is excellent for TV and video, while the Sennheiser CX300S is good.
Noise Reduction
2.5
7.0
The Sennheiser CX300S is good for noise reduction, while the EPOS PC38X is poor.
Cost
$125
$50
$0
$50
$100
$150
$200
The EPOS PC38X has a price of $125 and the Sennheiser CX300S costs $50.
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Key similarities
Build Quality
8.5
8.0
The EPOS PC38X and Sennheiser CX300S both have very good build quality.
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How the EPOS PC38X and the Sennheiser CX300S compare to other earbuds and headphones
Spec Comparison
 |  | |
| EPOS PC38X | Sennheiser CX300S |
GENERAL | |||
|---|---|---|---|
| Price | |||
$125 | $50 | ||
Brand | |||
Brand | EPOS | Sennheiser | |
Release Date | |||
Release Date | September 1, 2020 | February 1, 2019 | |
Form Factor | |||
Form Factor | Headphones | Earbuds | |
Connectivity | |||
Connectivity | Wired | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 9.6/10 | 7/10 | |
Phone Calls Score | |||
Phone Calls Score | 10/10 | 3.1/10 | |
Gaming Score | |||
Gaming Score | 10/10 | 6.1/10 | |
TV and Video Score | |||
TV and Video Score | 9.1/10 | 7.4/10 | |
Exercise Score | |||
Exercise Score | 4.5/10 | 4.2/10 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | No | |
Noise Reduction Score | |||
Noise Reduction Score | 2.5/10 | 7/10 | |
Virtual Surround | |||
Virtual Surround | N/A | No | |
Mic Quality | |||
Mic Quality | 10/10 | N/A | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 8/10 | |
Comfort score | |||
Comfort score | 8.4/10 | 7.6/10 | |
Size | |||
Size | N/A | Small | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 249.4 Grams | 12 Grams | |
Microphone style | |||
Microphone style | Boom | N/A | |
Shopping
EPOS PC38X
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Dig into reviews and images
Everyday Listening
Ryan Soo | November 2021
"Lightweight and comfortable design, Mic arm with mute, Excellent tuning, Highly natural midrange voicing, Clean and separated bass, Solid soundstage dimensions. Combining all day comfort and integrated coms with a balanced and spacious sound from essentially any source, it is hard to deny the versatility and value provided by the PC38X."
Sennheiser CX300S
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Dig into reviews and images
Major HiFi
Carroll Moore | April 2019
"Sennheiser offers impressive bang for your buck when it comes to the CX 300S. Built like a tank and sounding surprisingly good for such a budget-minded earphone, the CX 300S out-classes many of its would-be competitors. Functional but beautiful, it’s the perfect in-ear listening solution for anyone who wants to hear everything and look good doing it."
Get a great deal on the EPOS PC38X or the Sennheiser CX300S
About EPOS
EPOS is a relatively new company with a very long heritage. Previously known as Sennheiser Communications, EPOS is the result of the joint venture between the German headphone manufacturer Sennheiser and the Danish Demant that sought to develop premium audio communication solutions. They specialize in two main product groups, enterprise communications and gaming communication headsets and processing devices.
About Sennheiser
A family-owned company, Sennheiser is a German, high fidelity, audio equipment manufacturer founded in 1945. Their consumer audio division is now owned by the Swiss hearing aid and cochlear implant manufacturer Sonova. Sennheiser offers a wide variety of, very high quality, audio equipment solutions, from headphones to earbuds, full sets of monitoring speakers, amplifiers and microphones. They also make what is widely regarded as the best, and most expensive, headphones in existence, the HE-1 Orpheus, costing a whopping $59,000 dollars.
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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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