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  #1  
Old 01-08-2007, 03:35 PM
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Aardvark Aardvark is offline
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Default Sennheiser CX300 User Review

I wrote a review on mine here
http://members.dooyoo.co.uk/headphon...hones/1043831/

You may need to register to read it so I will copy the review in full. Should be OK as I have referenced the source and I am the author.

Overview

The CX300 are ear canal or IEM (Inner Ear Monitor). They were originally released by Sennheiser as pro equipment and are related in design to both the Creative EP630s and an earlier Sharp model the MD33. Sennheiser whilst using similar shells ensure that the drivers inside are made to their exacting standards.

Comfort

This was my first pair of IEM as I was not sure that I could cope with something in my ear canal but unlike the more expensive offerings from Shure and Etymotic the Sennheisers do not penetrate as deeply.

As the drivers are very small these rely on only moving air in a very small space and so they must form a tight seal with the ear when in position. Three sizes of ultra soft medical grade silicone tips are provided for you to get the best match with your ears. Anyone used to wearing industrial foam ear plug ear defenders will find that these are so comfy you forget that you have them in. Once in position the outside shell of the CX300s fits inside the outer edge of your ear cartilage. Falling asleep in them is no problem irrespective of how your head meets the pillow.

Convenience

They are small and lightweight, weighing next to nothing. The cord is a ‘J’ type with the right lead longer than the left. This design feature allows them to be run to your right ear around the back of your head. In addition, the 3.5mm jack is right angled, which means it is less likley to get damaged in your pocket as its profile is lower. If you prefer the ‘Y type cord, these are available on the similar but (less bass forwards according to some reports) Creative EP630 which are fitted with a straight 3.5mm plug

The Full cord length is 1m and ideal for use with an MP3 player in your pocket unless you are over 6ft tall and wear cargo pants

Sadly they are not supplied with a carrying case to keep them safe when stuffed inside a kit bag.

Attenuation of outside noise.

They do attenuate external noise very well and it is possible to still run them at medium volume settings when in a room full of people talking and a surround sound TV with active subwoofer working. On my full sized open back reference cans ( Grado SR60) I run with an average volume setting of 23 out of 25 on my Creative ZVM. With the CX300, the same song under the same external environment will only need a setting of 17. At this setting I can not hear people speaking directly to me in the same room unless they shout.

The flip side is that little noise leaks out and I can listen in bed next to a sleeping partner and not disturb them.

Care should be taken if jogging or cycling with these in place as you may not hear the approaching vehicle until it sounds its horn.
Owing to the design, if you want to jog or work out in them your will need to run the cords under a vest or tape them to your skin with a strip of micropore in order to stop micro phonic transfer of vibrations straight to your ear. All IEMs will do this as when they form a seal with your ear canal and ear drum they create a tin-can telephone effect.

Quality of Sound

In addition to the stock ear buds supplied with Creative and Sony portables, I have compared them with pro monitor full sized headphones such as the Sennheiser HD280 pro, noise cancelling travel headphones Sennheiser PXC150 and the prestige range open backed Grado SR60.

Bass is very easy to follow, they are more bass forward than any of the reference cans. Vocals are just a bit back in the mix and the very top end treble such as cymbals lacks the sparkle of my Grado SR60s. That said, I now use these CX300 even at home in quiet environments. They are a bargain for the price asked and will eat alive any stock buds that come with ipods etc.

Vocal tracks with strings such as Tori Amos, ‘Pretty good year’ pass on the full emotion of the female voice and the lower notes from the cello carry the full timbre of the instrument.

Bass driven tracks such as ‘Babylon’ by David Gray reveal just how low these headphones can go.

Vocal harmonies are presented in a layered and musical way on tracks such as ‘My Sweet Carolina’ by Ryan Adams.

The soundstage is less inside your head than you would expect and does have a front of the face presentation, the only area where they could be improved is in the very top end where they are not as airy and crisp as open backed full sized headphones, that said I find that I use mine more than my full sized cans. They are good enough to be used with a home Hi Fi.

Sennheiser offer these with a two year Warranty and in a choice of Black, Silver and now White.

These can be found in the High street at most outlets such as Dixon’s Digital, Comet, HMV in the UK for 39.

Online they are much cheaper, I bought mine from an Auction site for 18 delivered. Please take care buying this way as there are many cheap fakes around. Sennheiser never made OEM versions and so all genuine CX300s will come in full EU retail packaging. Make sure you know what this looks like. Summary: A genuine upgrade from stock ear buds.

http://www.sennheiser.co.uk/uk/icm.nsf/resources/CX_instructions.pdf/$File/CX_instructions.pdf

http://www.sennheiser.co.uk/uk/icm.nsf/root/500830

New Paragraph

Mine are still going strong two years on

I must add some notes about the 'wind whistling noise'. Since thses are semi-closed and have some form of vent system, when wearing them outside and walking into wind I have noticed quite an intrusive wind whistling sound. This would be a problem for jogging in the park or riding a bike. Not all users experience this, but certainly myself and WalkGood recognise the problem
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Last edited by Aardvark; 12-02-2008 at 05:27 AM. Reason: Added last para owing to renewed interest in cx300
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  #2  
Old 01-25-2007, 05:19 AM
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Warning to UK Ebayers. 24 th January 2007

I have just run a search for CX300 on the UK site and have seen pages of fake CX300.

Before you bid, make sure of the following.

1 Full EU retail box
2 Right angled chrome 3.5mm jack plug.

All the fakes that I can see have no box and a gold straight 3.5mm plug
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  #3  
Old 02-10-2007, 03:07 PM
h4x3r h4x3r is offline
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just like to add Freind brought CX300 on eBay, he brought the OEM's there fake. And the earphones where shinny comapred to mine (Orignal for manufacture~) they where not
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  #4  
Old 02-13-2007, 02:41 PM
ammar ammar is offline
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Good review...
this is full EU retail box and right angled jack and is silver jack too.
is this fake then? : http://cgi.ebay.co.uk/NextDay-Delive...QQcmdZViewItem

h4x3r said his friends were fake because they were shiny, thes elook pretty shiny..

Oh people are saying if it says "Blocs Outside Noise" on the box then its fake and the real ones have "In-Ear Canal" written on them .. I think I'll order off Amazon, only 15.
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  #5  
Old 02-13-2007, 03:47 PM
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Walk into any branch of Comet or Currys Digital and look at the CX300 in there. Older models had a shell with a more matt look, current stock seem to be more shiney. Some say Perfect Ear Canal Fit and others say Blocks external noise.

The ones pictured look genuine. I bought mine from Ebay, have compared them with those in Currys and they are identical in every way, even the Bar code on the rear.

If you ant to PM me I will give details of the chap that I bought from.

If mine were fake, I would still be delighted as they out perform my 70 Grado SR60, which I am going to sell.
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  #6  
Old 03-18-2007, 03:29 PM
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I'll be looking foward to getting these, just gotta make sure I don't end up with fake ones eh!
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  #7  
Old 03-20-2007, 05:56 PM
maboroshi maboroshi is offline
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I'm not a fan of the super tight seal they make, hurts the eardrum if you get them in too deep.

Last edited by maboroshi; 04-02-2007 at 07:59 PM.
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  #8  
Old 04-12-2007, 06:48 AM
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Quote:
Originally Posted by maboroshi View Post
I'm not a fan of the super tight seal they make, hurts the eardrum if you get them in too deep.
If you find that they penetrate too deeply, use the next larger size of silicone tip. I had this problem with my right ear and I now use the large tip on the right and the medium tip on the left.
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  #9  
Old 05-08-2007, 03:57 PM
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What is the "break in" period for these? I just got myself a pair.
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  #10  
Old 05-09-2007, 10:52 AM
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10-12 hours of burn in time should be about right.
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  #11  
Old 05-10-2007, 08:44 PM
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oh cool ... I just left my ZVM playing for 10 hrs ... they should be good by then ...

Would these work alright on an airplane? or would the cabin pressure hurt my ears?
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  #12  
Old 05-12-2007, 12:47 PM
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What level should the volume be during the burn in period?
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  #13  
Old 05-12-2007, 12:52 PM
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Normal listening volume, and a variety of music. Just play some stuff on random/shuffle.
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  #14  
Old 09-08-2007, 09:34 AM
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Well im that stupid friend of h4xer n bought them fake ones....now there broke....they worked pretty well for fakes tho....

but neways to the point....

http://www.techfocus.co.uk/pages/pro...ookie%5Ftest=1

should i trust them n buy them or not....

if someone could....please find me some CX300's for under 25

Thanks in advance
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  #15  
Old 09-08-2007, 09:42 AM
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You could get another pair of "fakes", for $2.85 (free shipping) - http://www.kaidomain.com/WEBUI/Produ...px?TranID=1442 - well, technically they're not fakes, since Kaidomain doesn't claim them to be real CX300s.

Those should be decent from what I heard, and you pay a good price - unlike the fake ones on eBay that go for a lot more.
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  #16  
Old 09-08-2007, 09:52 AM
desi desi is offline
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Thanks but no thanks....:P

I'd rather just go for the CX300's

Thanks
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  #17  
Old 09-08-2007, 10:08 AM
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since youre from the uk, just buy them from amazon :P 15 pounds or so
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  #18  
Old 09-08-2007, 10:34 AM
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erm okay....thanks ill take a look
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  #19  
Old 09-08-2007, 04:41 PM
Hodgie Hodgie is offline
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http://search.ebay.co.uk/search/sear...ge=search&fgtp=

These are from proper ebay shops. Look at the ones at the top. they will be 100% genuine
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  #20  
Old 09-12-2007, 11:22 PM
SKYLINE_GT-R SKYLINE_GT-R is offline
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I have CX300s! I love them. They are the most expensive earphones I've ever had, and only my second pair of in-ear earphones. The only thing I don't like is that my ears get sore after a few hours of using them and if I have them in for a while when it is warm, then they get all gross and uncomfortable. By the way, I didn't know you can break in earphones.
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