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Sennheiser CX 3.00 In-ear Headphones Review
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Sennheiser CX 3.00 In-ear Headphones Review

by 2016/03/02
Overview
Price

$54.95

Product Name

Sennheiser CX 3.00

Positives

• Bass response makes them well-suited to modern popular music
• Light, portable build
• Upgraded physical design and durability
• Tangle-free cable
• Angled earpieces fit well

Negatives

• Heavy bass response will turn some users off
• Hard case is frustrating to use

Rating
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Sound Quality
82%
77%
Appearance
86%
78%
Worth it?
83%
77%
Ease of Use
90%
85%
Hardware
85%
77%
Features
83%
77%
Bottom Line

The Sennheiser CX 3.00 earphones have a simple design well-suited to portable listening. They are targeted at the general listening public and have a tailored response suitable for modern popular music. They are significantly improved from the previous model.

85%
Our Rating
79%
User Rating
21 ratings
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The Sennheiser CX 3.00 in-ear headphones are a mid-priced model designed for use by the general listening public. The earphones are an update on the Sennheiser CX 300 II model, which was popular with consumers and generally well-received. I have used the CX 300 II for a number of years and thought headphones produced quality results for the asking price. I did have some problems with durability, though I was happy enough with the product that I repurchased them after they broke. The CX 3.00 provides a more robust design, an updated appearance and a greater emphasis on bass. Listening to my older CX 300 II it was often hard to pick out the basslines which I could hear clearly on my monitors or headphones, so the adjusted EQ is a smart move from Sennheiser. The CX 3.00 sits in the middle of the CX line. The cheaper models are the Sennheiser CX 1.00 and Sennheiser CX 2.00i, while the Sennheiser CX 5.00G is a pricier option.

Modern sound with strong bass

Sennheiser CX 3.00 Earphones

Sennheiser CX 3.00 Earphone Tips

The Sennheiser CX 3.00 has a thoroughly modern sound, with a very strong bass presence. If you listen to rap or bass-heavy electronic music, you will be right at home. The earphones are not evenly balanced and they do not provide a flat response. They offer reasonably clear sound but they are not targeted at audiophiles or people in search of honest reproduction. The frequency response is 17Hz – 21kHz, which extends the high end compared to the previous model. The full bass response is the most recognisable sonic fingerprint of the earphones. It really comes down to personal preference on whether you will enjoy this aspect of the earphones. Some users will love it while others will find the bass overly hyped. The highs are clear and are not harsh or fatiguing. The earphones are therefore a good choice if you are listening at a high volume or to heavily compressed music. The mids are somewhat reined in and are not overly detailed.

Sturdier build for Sennheiser CX 3.00

Sennheiser CX 3.00 In-ear Headphones Multi

Sennheiser CX 3.00 colour options

The Sennheiser CX 3.00 earphones have a design which is subtle and understated. They are available in black, white and red. The physical design of the earphones has been improved from their predecessor. The angled earpiece is a smart move. It matches the angle of the ear canal and results in a secure, tight seal. The body of the earpiece is made of plastic and the earpiece tip is rubber. Four earpiece tip sizes ship with the earphones (XS, S, M, L). The earpiece itself has been upgraded from plastic to a new metal design, which helps make the design more durable. Mid-priced Sennheiser earphones don’t have the best reputation for durability so the new design is appreciated. Sennheiser offer a two-year warranty for the model.

Sennheiser CX 3.00 Earphones

Sennheiser CX 3.00 Earphone Box

A hard protective case is included with the earphones, with built-in cable management. The case allows a spare pair of eartips to be stored. Using the case is fiddly though. The pouch that shipped with the previous model was more convenient, although it could have done with some protective padding.

Sennheiser CX 3.00 In-ear Headphones case

Sennheiser CX 3.00 Carry Case

Noise isolation bolstered by smart design

The earphones offer a reasonable level of noise isolation. They are clearly intended for portable use so having complete isolation is not necessarily required. Moving around the city with full isolating earphones could be dangerous. To get the full level of isolation offered by the headphones, they have to be placed in such a way as to get a good seal. The angled design of the earpiece helps get a good seal and also makes the isolation and bass response stronger than the previous model. The earphones are light and the fit is comfortable.

Sennheiser CX 3.00 Earphones

Sennheiser CX 3.00 Earphones Back and Side

Tangle-free cable makes use easier

The CX 3.00 earphones have an elliptical 1.2m cable. The elliptical shape is a new feature which minimises tangling. The cable is durable and produces only minimal noise. It is Y-shaped, with two even lengths leading to each earpiece. The splitting point can be brought closer to the ear according to personal preference. The cable has a gold-plated 3.5 mm angled jack, which sits 7mm above the device it is plugged into. This is a fairly slim gap, but it allows enough space for a phone case. There is no mic or controls located along the cable-length.

Sennheiser CX 3.00 In-ear Headphones White Close Up

Sennheiser CX 3.00 in white

The Sennheiser CX 3.00 earphones have a simple, subtle design which is well-suited to portable use. The bass-heavy response is tailored for popular music and the general listening public, as opposed to audiophiles. Changes such as the angled earpiece, tangle-free cable and sturdier design make the earphones superior to the previous model. There is a lot of competition at this price-point though, so you may wish to shop around before committing to the CX 3.00s.

United States: Amazon, Newegg, Bhphotovideo
Canada: Amazon
United Kingdom: JohnLewis, Argos
International: Ebay, Selfridges

These earbuds are very comfortable to wear, and block noise form outside on a certain extent. Modern look, L-shaped connector and tangle-free wire make it so much easier for everyday use.


Just got these, they're great! Upgraded from the CX 300-II, I can definitely notice the difference! These sound much better.


Big full punchy sound, slightly different than the CX300s but in a good way! They isolate better too!


The sound is wonderful for the price you pay. The simple design makes it really comfortable for me to sleep with the earphone on.


      Specifications:

    • Driver Type: Dynamic
    • Impedance @ 1kHz: 18 ohms
    • Sensitivity: 118 dB SPL/V
    • THD+N: <0.5% (1kHz, 100dB SPL)
    • Connector Type: 3.5mm (1/8")
    • Cable Length: 1.2 meters
    • Cable Style: Straight Y
    • Weight: 12 grams
    • Manufacturer Warranty: 2 year

What's In The Box:

  • Sennheiser CX 3.00 in-ear headphones
  • Silicone eartips in multiple sizes (XS/S/M/L)
  • Carrying case

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About The Author
Stephen Charlton

Stephen Charlton is a musician, journalist and editor.

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Sound Quality
Appearance
Worth it?
Ease of Use
Hardware
Features