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Sennheiser Black CX 300-II Ear-Canal Isolating Stereo Earphone,Black

  • 19Hz-21KHz
  • 3.5mm Connector
  • 3.9 ft. (1.2 m) Cord Length
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Offering a powerful, bass-driven stereo sound with greater clarity and improved dynamics over standard earbuds are the CX 300-II ear-canal phones. The various sizes of ear adapters (S/M/L sizes) provided in the package allow for a customized fit as well as exceptional noise blocking capability.

  • newegg Dynamic speakers Dynamic speakers provide a powerful, bass-driven sound that's optimized for portable media players such as MP3, iPod, iPhone, CD players and portable gaming systems.
  • newegg Personalized fit The ear buds offer excellent fit in the ear canals and deliver high attenuation of ambient noise. The headphones also come with 3 different sizes ear adapters (S/M/L), allowing you to find the best fit.
  • newegg Asymmetrical cable Asymmetrical cable reduces tangles and cable clutter.

Learn more about the Sennheiser Electronic corp. CX 300-II

Model

Brand
Sennheiser
Type
Earbud
Model
CX 300-II

General SPEC

Color
Black
Frequency Response
19Hz-21KHz
Input Impedance
16 ohms
Sensitivity
113 dB (1kHz/1Vrms)
Connector
3.5mm
Ear Coupling
Ear-Canal
Cord Length
3.9 ft. (1.2 m)
Weight
0.50 lbs.

Features

Features
High-quality dynamic speaker systems for powerful, bass-driven stereo sound

Excellent fit in the ear canals and high attenuation of ambient noise (ear adapters in different sizes included)

Convenient carrying pouch included

Optimized for MP3, iPod, iPhone, CD players and portable gaming systems (iPod and iPhone are trademarks of Apple Inc. registered in the U.S. and other countries)

Asymmetrical cable

Packaging

Package Contents
CX 300-II ear-canal phones
Ear adapter set (S/M/L)
Carrying pouch

Manufacturer Warranty

Parts
2 years limited
Labor
2 years limited

Quick Info

Warranty

  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years


Customer Reviews of the Sennheiser Electronic corp. CX 300-II

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  • Andrew B.
  • 5/6/2013 10:59:05 AM
  • Tech Level: High
  • Ownership: more than 1 year

4 out of 5 eggsVery Pro'sumer, follow-up "End of Life" review

Pros: *(See my previous entry on this product)

addendum: They even functioned nicely as earplugs in a pinch (Moogfest 2012, forgot the custom set at home, and the CX-300II did fine (~40% reduced sound pressure, and an extra -8dB between 800-15k (so not quite flat performance, but better than deafness a'la Squarepusher)))

Cons: *(See my previous entry on this product)

Other Thoughts: After MANY years (at least 7 years) of use they finally "broke". Housing at the apex of the right angle jack. But the wiring is still intact therefore they (both L/R) still function, though delicate now. Might install them into some device or function, but they will no longer accompany me in the big mean world.

Would I buy them again? You're Gee'darn'ed tootin' I will!

Did you find this review helpful? Yes No

  • Anonymous
  • 5/1/2013 5:04:34 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsA quality headset with an emphasis on socializing

Pros: Decent treb.
Near perfect mid ranges.
Acceptable bass.
3 sets of of different sized silicon ear buds ranging from small, medium, to large ear canals.

Cons: None, you're getting exactly what you're paying for. However the reason I give it a 4 is because they should have used a mechanism to adjust the length of each phone. The downside to that though is that it makes it more prone to getting tangled. Nevertheless, the cord works exactly as intended.

The other reason I give it 4 is because anything above a sound pressure level of 75 db (75 db should be standard practice) will cause hearing loss. These get up to 113 db, so refrain from blasting sound directly down your ear canals with these babies if you value your hearing.

Other Thoughts: Decent treb.
Near perfect mid ranges.
Acceptable bass.
3 sets of of different sized rubber

The thing to bear in mind is that this a socially targeted headset. More specifically towards nations (more prominently in Asia) that have social trends towards friends sharing one headset. Thus the reason why the right ear bud is longer so that you can easily pass it to your friend.

This may seem strange at first for those who are not comfortable with such a concept, but after awhile you won't even notice it and may even embrace it once in awhile should you decide to share your listening experience.

Did you find this review helpful? Yes No

  • John S.
  • 1/13/2013 6:44:07 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsNot worth it

Pros: Worked great when they worked.

The short wire on one bud makes it easier to figure out which bud goes in which ear.

Cons: One bud stopped working within two months of light usage, so I switched to $6 buds. One working bud, so one star.

The short wire on one bud puts uneven force on it so it pops out more often.

0 out of 1 people found this review helpful. Did you? Yes No

  • Evan C.
  • 12/2/2012 4:28:43 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsGood while they worked...

Pros: Good sound quality
Affordable price

Cons: Unreliable

Other Thoughts: I've owned these ear buds for about 3 months. I was pretty happy with them until recently. The left side earbud suddenly lost about 90% of its volume. It's not dead, just completely imbalanced in power. I've confirmed that this is definitely a problem with the ear bud, not the sound source. Now that I'm overseas and unable to return the buds to newegg or get them services easily, I'm left without the quality sound I wanted. This is pretty frustrating. It should not be that hard to build reliable earbuds!

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  • William M.
  • 11/20/2012 6:19:19 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsExcellent Product for the Price

Pros: Exquisite sound for an earbud! Actually useful carrying pouch (no zippers or removable parts)

Cons: One Earbud is on a longer cable than the other.

Other Thoughts: The sound quality is superb. The earbuds manage to cancel out loud outside noise very well. For some reason though, they have decided to make one earbud longer than the other, as opposed to both earbuds having the same length of cord. Kinda neat, but kinda annoying at times.

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  • Chris G.
  • 11/12/2012 10:01:35 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsJust what I was looking for

Pros: Blocks outside noise and sounds great. Fits my ear just right. I use them almost every day.

Cons: Did not like the left cord being shorter that the right but now I like it. I do not have to look at them to get the left right down.

Other Thoughts: Good mid priced ear buds.

Did you find this review helpful? Yes No

  • Laurie G.
  • 6/10/2012 3:09:14 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

5 out of 5 eggsBest budget earphone!

Pros: Very good sounding buds.. I had the first gen for a really long time and I finally snagged the cord one to many times and broke them. Keep in mind earbuds like a lot of speakers go through a break in period.

Cons: None.

Other Thoughts: To the one guy who gave this a negative review.. I can't believe you would compare cheap Skull Candy buds to these. I have the cheap skull buds and they don't sound anywhere as good as the CX300 II. If your getting a hum the problem is your source. I think you may have been jamming the skull candies so long that you think they are good.....

7 out of 7 people found this review helpful. Did you? Yes No

  • Anonymous
  • 3/24/2012 7:52:25 AM
  • Tech Level: High
  • Ownership: more than 1 year

4 out of 5 eggsVery Pro'sumer/amature'phile quality

Pros: Very flat and true with a wee tiny bump around 1.2k. Beat-up'able for out and about and small rig field recording. Café laptop production and post clean (remembering that these aren't for final master of course).

Cons: Not PERFECTION* and never could be. The rubber for the cord and right angle 1/8" TRS feels a bit gummy but not cheap.

Other Thoughts: The CX300's are either going to be a giant step up for "civilian" to legitimate critical listener, or paletable beaters for professional ears. They can do irreparable damage to the tastes of those who've never had quality, everafter snearing at "candy" and "Dr.Ds" (sorry, but if Beats are accurate to the endorser's spec', i know wear he has hearing damage).

3 out of 7 people found this review helpful. Did you? Yes No

  • ebaytechstore
  • 10/4/2011 12:09:40 AM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsOutstanding

Pros: Thee best sound quality I have EVER heard on a pair of ear-buds. So crisp, so clear, great highs and lows.

Cons: Fragile

Other Thoughts: This is going to be my second pair, my first pair broke due to me falling asleep with these baby's in every night and rolling around with them.

1 out of 2 people found this review helpful. Did you? Yes No

  • Paul M.
  • 5/21/2011 1:18:45 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsBest Ear Buds I Have Ever owned

Pros: Comfortable, good reproduction of highs, deep bass, no distortion at high volume, did I mention they were comfortable.

Cons: Chord design a little weird; the right side is on such a longer chord, wish both sides were just simply equal length.

Other Thoughts: I needed something to replace my i-Pod ear buds. They have good sound but kill my ears after a little while. After multiple earbuds by various manufacturers, I came across a set of these. They blew everything else away. I was finally able to crank up the bass on the mp3 player without any distortion and the reproduction of highs is excellent. I can have them in for as long as I want without any discomfort. I have other similar style earbuds, but for some reason, just not as comfortable.
I highly recommend these for someone looking for quality sound reproduction and deep bass.

2 out of 2 people found this review helpful. Did you? Yes No

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