Westone 4R with Removable Cables


Headphoneus Supremus
Pros: superb resolution, very wide soundstage, quick bass, comfort, case, accessories, cable, relaxed presentation if you're into that
Cons: soundstage has got about no depth, 5 kHz dip makes the presentation very relaxed, sound signature not for everybody, short memory wire


Westone doesn’t need any further introduction – it is one of the major brands and international big players. Nonetheless, let me drop a few lines about the American company: founded in 1959 with the main market being listening protection and in-ear monitoring, they also designed and manufactured the E1 plus E5 for Shure and co-developed and manufactured Ultimate Ears’ first products when Jerry Harvey was still UE’s leader before he sold the company to Logitech years later, but that is another story of a different brand that belongs in a different place. But that little information should give you the idea that Westone is and has ever been a very important name in the game. In the more recent days, their tradition continues and they are still making listening protection, military earpieces, custom earmoulds, custom moulded in-ear monitors for live musicians as well as universal fit in-ear monitors for professional and private use.
Their quad-driver three-way BA in-ear W4/4R (/40) got quite a lot of attention in the German community years back and was said to be one of the technically best universal fit in-ears at that time – while I would mostly agree to that, I wouldn’t say it is for everyone because of its tonality and soundstage, but more about that later on.
I know that I bought the W4R, the removable cable version of the W4 with 2-pin connectors and new carrying case, right at the time when it first came out. I don’t know where I bought it (it could have been a German shop, but also a British or any other online shop in Europe; I honestly don’t remember it anymore), but what I still know though is that I paid exactly €439.

As the W4 and W40 are said to be tonally very similar, this write-up might also be helpful for those who are eyeing a used W4 or new W40.

Technical Specifications:

Sensitivity: 118 dB SPL @ 1Mw
Frequency Response: 10Hz - 18kHz
Impedance: 31 ohms @ 1kHz
Drivers: Four balanced armature drivers, three way crossover design (2x lows, 1x mids, 1x highs)

Delivery Content:

The in-ears arrive in a cardboard box with “dark brushed aluminium” design and a large 4R logo below a picture of the in-ears of whose one side’s cable is disconnected to show the new feature of the removable cables with 2-pin connectors. The back shows the in-ears’ features along with a picture; the left side shows some possible fields of application plus the technical specifications and the right one displays the included accessories.
The actual container box can then be slid out and opened up like a book (it is kept closed by Velcro dots on the right hand side), then the in-ears and carrying case can be seen. In the carrying case are these accessories: a cleaning tool with integrated brush, a 6.3 to 3.5 mm adapter, a volume attenuator adapter and many ear tips (three pairs of foam tips, three pairs of dark grey silicone tips, three pairs of thick white silicone tips, one pair of triple-flange tips). Inside the box are also a product manual as well as a product information CD-ROM and a small QC paper that states when the in-ears were manufactured, along with a signature of the person who did the quality control.

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Looks, Feels, Build Quality:

The in-ear bodies are made of very durable and robust plastic, feature a two-piece mould design and are very well glued together. The outer side shows a “4R” logo. As the “R” indicates, the in-ears feature removable cables with standard 2-pin connectors.

Over the years, the cables have slightly hardened near the earpieces (maybe due to sweat as I sometimes used the Westone for sports) but are still very flexible on most parts. It is a professional, very lightweight cable with twisted litzes. The low profile is also reached due to the presence of only three single wires below the y-split which therefore contains a solder-point but is pretty small in profile as well and not unnecessarily thick. The angled 3.5 mm connector as well as the strain relief appear to be good, however the memory wire ear guides are a bit too short (more about that in the “Comfort, Isolation” section).

The small, black, waterproof Otterbox with orange clasp is nicely padded on the inside and also features a small loop that can be used to attach a snap hook.

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Comfort, Isolation:

The shells’ shape is quite similar to Shure’s and will be extremely comfortable for most people, including myself. The nozzle angle is a bit different though and some will therefore find Shure’s IEMs more comfortable while others Westone’s (I personally find Shure’s nozzle angle to be very slightly more comfortable, but it is a close call). Wearing the in-ears for a long period of time works very well, especially with my large ears.
What’s not so well made though is the memory wire at the cable: I know that many people don’t like memory wire and that the W-non-R series with permanent cable had no memory wire at all. I personally like memory wire. The W4R has got memory wire, but it is kind of a fail in my opinion, as it is very short and stops about at the top of my ear, which feels kind of strange. I really think it would have been better if they went for a memory wire-free cable or longer, traditional memory wire instead of this kind that is rather there to just guide the cable into the right direction in the front part instead of really being helpful – but that’s just me.

There are no microphonics when the cable cinch is used and isolation is excellent, just as with the majority of closed shell multi-BA in-ears


For listening, I used the largest included single-flange silicone tips. Sources I ever used the W4R with always had around or less than 1 Ohm output impedance.


Tonality-wise, the W4R is a rather full sounding, midbass/upper bass/lower root focussed in-ear with smooth but non-recessed midrange.

At around 800 Hz, the lows’ emphasis starts extending and forms the climax quite early at already 200 Hz, hence lower (plus also middle) root and upper bass are full and the bass has got a good kick. Compared to the UERM, the emphasis is about 4.5 dB; compared to the even flatter Etymotic ER-4S it is about 7 dB (typically for BA drivers though, it surely won’t have the impact and tactility of a dynamic driver’s bass – the W4R is far from being a basshead model). That level is kept upright until about 60 Hz, then it rolls off down to 20 Hz where the level is still above zero but sub-bass clearly takes a step back compared to the midbass. Because of the early starting lower frequency emphasis, the bass is quite warm and full. Although the root doesn’t spill too much into the lower mids, they are audibly affected and on the somewhat darker and warmer side, though I would still say they are not too coloured and with a plausible timbre, however the general timbre is a bit off because of the full lower root that makes many instruments’ fundamentals sound a bit too warm.
Level between 800 Hz and 1.5 kHz is flat; from there on in the upper mids/presence area, it takes a step back, making female vocals somewhat lack air, which is also actually caused by the evenly following, quite deep dip around 5 kHz that is mainly responsible for the midrange to sound smooth and relaxed, as its overtones are tamed.
At 8 kHz, there is a peak that is just at the same level as the midrange and not harsh, bright or piercing at all (wherefore it totally lacks the TWFK’s typical character that many perceive as too sharp). Super treble extension is still good up to around 13 kHz although a bit less subtly sparkling than with brighter in-ears.

That 5 kHz dip in the middle treble is responsible for the smoothness and relaxedness in the midrange. It is actually just a matter of preference. For many it will provide good fatigue-free long-term listenability. For my preference, it is a bit too distinctive with the W4R and I miss some countervailing brightness, but that’s just a subjective thing.


The W4R is definitely no slouch here and the claims from years back in the German community of it being one of the best universal fit in-ears on the market with the most expensive UIEMs being priced around half a grand at that time hold true: models at twice or three times the price do some things better, but not by that much – it’s the law of diminishing returns that kicks in and for some things that are different or (in comparison) a rather small difference, one has to pay an exponentially increasing price – whether it’s worth paying the higher price for a little upgrade or not is a totally personal decision (for some headphones, it was worth it for me).
The bass is quick, arid and detailed (not as quick as my UERM’s but quick nonetheless), the (upper) treble is very smooth, without any hint of sharpness, and has got an easy-going presentation of minute details although the middle treble takes a step back in terms of level. Although I would personally wish a bit more graininess in the midrange (it is that smooth because of the 5 kHz dip), it is very detailed as well but moderately lacks behind the vocal resolution of my UERM or Shure SE846 – overall though, it comes very very close to the level of details of those two in-ears.
Compared to some other triple- and quad-driver in-ears I own and have on hand like the UE900, FA-4E XB and DN-2000J, the W4R is also the overall (sometimes more and sometimes less slight) winner (W4R > DN-2000J ~ UE900 > FA-4E XB).


Three words: super friggin’ wide. Not yet as wide as HD 800’s stage, but very close and very wide for in-ear levels. Wide enough that it clearly goes out of the head and not by just a bit but is actually quite noticeable. Displaying instruments precisely separated is therefore very easy for the in-ear and it has no problems at all separating even very small tonal elements from each other, even if they are yet so small. Where it lacks though is spatial depth – there is just about none. Yes, if there is reverb on the track it is audible, but not perceived as depth – just as reverb. It is kind of like a billboard: plenty of width and even if there is a photo displayed on the advertisement, depth is visible on it, but it is no real depth and the billboard will always be flat when you stand in front of it. Hence intimacy is also not really present but everything seems like seen from one or two rows back. Using an EQ doesn’t change the perception of soundstage at all for me with the Westone.


In Comparison with other In-Ears:

Logitech UE900:
The UE is a subjectively clearly more balanced sounding in-ear with lower (and much flatter extending) bass quantity. Speed is about similar. While the W4R sounds full and with thick midbass as well as lower root, the UE900 sounds leaner; overall UE900’s timbre is a bit more natural. UE900’s mids are a bit on the dark side, W4R’s sound somewhat warmer and thicker due to the emphasised lower root. The middle treble of the UE is a bit more on the relaxed side as well (but more broad-banded), though not nearly as much as the Westone.
Regarding soundstage, the UE’s is narrower (but not congested at all) albeit with a bit more spatial depth. Instrument separation is a bit better on the Westone’s side, but it fails at displaying any real depth at all where the UE has some (but still sounds rather flat than three-dimensional; I’d say UE900’s soundstage is about average).
Both are not too far apart when it is about detail retrieval, nonetheless the W4R is more detailed sounding. While there is no major difference in the treble and bass, it becomes audible in the midrange where the UE unfortunately sounds somewhat blunt and not as detailed as in the upper and lower frequencies (on its own, UE900’s midrange would be relatively good, but it just can’t keep up with the bass and treble).

Shure SE846:
Using the blue “reference” filters, the SE846 has got an about similar 5 kHz dip, making its mids about similarly smooth, however the Shure is better resolving in the midrange department. Switching to the white “treble” filters, the dip is clearly not as present anymore, so the mids are definitely not as smooth and relaxed (not to be confused with “recessed” as they are even a bit forward) anymore, while still being a bit on the smoother side.
The Shure is a sub-bassy in-ear whereas the Westone a mid-bassy one, sounding fuller. W4R’s lower root/lower mids are also fuller and thicker although the Shure isn’t thin sounding here by any means at all. In the super treble above 10 kHz, W4R’s extension is somewhat better.
In terms of resolution, both are pretty much on-par, but what makes the SE846 the overall better in-ear are its more rounded and deeper (but smaller) soundstage with better portrayal of emptiness and sharper instrument separation, its somewhat higher midrange resolution and overall more naturalness – it’s the law of diminishing returns that kicks in and for rather small improvements, the price increases exponentially, and at less than half of the price of the SE846, the W4R already offers 90-95% of the Shure’s sound quality. Bass speed is about comparable.

Why am I including this in-ear as it is quite different and such comparisons (Hybrid vs. BA) don’t make much sense to me? Mainly just for tonality comparisons, as the PRIMACY shows some similarities (smoothness and relaxedness) but is subjectively a bit better tuned to my personal preference in many areas.
PRIMACY’s bass is less of a hump and extends flat down into the sub-bass where the W4R shows a roll-off compared to the midbass. The ORIVETI’s bass emphasis also starts lower, making the in-ear sound less full in the lower root. The PRIMACY also has a “relaxed gene dip” around 5 kHz, however it is slightly less distinct than W4R’s, hence it doesn’t sound as relaxed and smooth in the mids. As the PRIMACY has a hump between 1 and 2 kHz, its mids are present enough despite the smoothness, and the slight preference of brighter vocals also makes up a bit for the 5 kHz dip. In the upper treble, the PRIMACY has got a more distinct peak (strangely it is only really audible with sine sweeps but with music, the ORIVETI sounds very even and without any edginess in the upper highs), hence it has the better perception of “air”. For my preference, the PRIMACY’s got the better “relaxed and smooth” tuning out of the two, as its lower root is less present, the bass extends flat down to the sub-bass and the upper middle mids and upper highs somewhat make up for the relaxed dip.
Tuning aside, the Westone has the higher resolution and more precise and wider but much flatter soundstage.


On a subjective end-note, while I really value W4R’s technical capabilities and always like it in the beginning after having kept it in the drawer for some time, I also always found myself finding the in-ear to be a bit annoying over longer periods of time. For my preference, the midbass/upper bass/lower root hump is too much, is not as present in the sub-bass and too present in the lower root. While it doesn’t spill too much into the upper root/lower mids, there is an undeniable fullness to the sound and the 5 kHz dip is a bit too much for me, making the mids appear too smooth and relaxed (for me). While the soundstage is super wide, it could also have clearly more spatial depth to sound rounded and spatially balanced – but that’s just me and your preference may and likely will vary. I can even see that many people will be really enjoying this in-ear, as it really is very good on the technical side, though it isn’t really my kind of sound (nonetheless I’ve still got this in-ear and haven’t sold it yet, which is kind of weird, huh? I guess I have kept it because of its technical strengths, although I just use it very rarely as it doesn’t fully hit my spot of preference).

Objectively regarded I’d say the W4R is a 4.3 out of 5 stars product – its resolution is very good, probably still among the very best in-ears below a grand. Its soundstage is super wide and well separated. And last but not least, its sound is full, very smooth and without any edginess, with relaxed but not at all recessed mids. If that is your thing, you will love the Westone.

Who would I recommend this in-ear to? Mainly those who are into that kind of tonality, as that is the most important thing, but I think especially many Pop and mainstream listeners will be diggin’ the W4R, its predecessor and successor.

Bonus Round – Frequency Response Chart:

Orange: W4R│Blue: UE900│White: SE846 @Treble Filters

(About the Measurements)
It is a very tricky question because it has a lot to do with personal preference. Also keep in mind that the Westone is a BA IEM while the DUNUs are Hybrids.

I would suggest that you place the question in this forum [http://www.head-fi.org/f/7840/introductions-help-and-recommendations] and specify what you are exactly looking for (state your preferred sound signature, music genres you listen to, places you listen at, whether you are using an EQ or not, if isolation is important to you, what source devices you are using etc.), define a budget and also list what IEMs you have owned/auditioned in the past and what you liked/didn't like about them.
For me, it is not easy to say which one I personally prefer (I thought about it and cannot give a definite answer at this point). However if you create a new thread in the help/recommendations forums and list all of the important information I have suggested to disclose, it will be much easier to say what IEMs might be suiting your personal listening preferences.
I'll reply in the thread you created. :)

Virtu Fortuna

Reviewer: Headfonia
Pros: Comfort, resolution, soundstage, treble extension, natural sound
Cons: Sibilant with certain DAP's, not enough bass, unnatural tone, expensive
I was blown away by sound quality of these when I first listened. Yes, these are one of the great universals, but after some time I noticed their flaws day by day.
The bass is weak and unnatural, sound is sibilant with FiiO X5. Some instruments are not in natural tone.
Everything else was great (especially mids and treble) but those flaws led me to selling them.
Comfort is great and isolation is enough for a Universal IEM.
Definitely one of the best, but not outstanding.
I read your review with a knowing nod of the head - I heard the same things - then I got a W4R customized at Inearz and things changed. The bass is no longer a deficiency - it is tight, goes really low (I heard the tone at 10hz) and has great texture. So these are what I consider outstanding with a custom fit. Also found that they like to be amped - so there is a way to get these to sound pretty darned good.
Virtu Fortuna
Virtu Fortuna
Thanks for the comment.
I don't have the opportunity to make them customized. Your comment makes sense because if your earphones are customized to your ear shape, it will porbably sound much better because of perfect fit.
Actually, I really liked the W4R's and used them about a year. After I bought the FiiO X5, it didn't match with W4R's sound-wise.
I bought Westone Um Pro 30 and I'm pretty happy. :)


100+ Head-Fier
Pros: Balanced sound, clarity, comfortable, good fit, allrounder
Cons: lack of bass extension if played without a matching amp, claustrophobic soundstage, treble grain
W4R is an amazing earphone for it's price, excellent choice for the ones looking to upgrade to a multi drivered IEM.
[With galaxy s4]: It sounds dull and boring at first , but as I listened more deeply, I realised that this is an IEM with such a balanced and controlled sound, just that I've always find the bass n treble extension lacking.
[With DAP<DX90>]:  Immediately I noticed the increase in bass, lower noise floor, also improved soundstage, Bass is better but still lacks extension
You listen to music without a DAP? I...wow.


Headphoneus Supremus
Pros: Non silibant, not fatiguing, small form factor, comfortable,
Cons: Price
Bass response doesn't bleed to the vocals or any other frequencies whatsoever, lightweight cable with no microphonics and a narrow plug to connect to portable devices. The Westone has a powerful, detailed and clear sound that does not under or overemphasize anything. A polite sound as another writer described with a mid-bass bump and upper treble elevation without been disturbing. A young-adult/athletic grown-up man sound if I have to describe it.
Westone star tips are excellent.
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New Head-Fier
Pros: Nice Punchy Bass, Wide U Shaped soundstage
Cons: Mids not as engaging as id like them to be.
So when I got the earphones my expactations where really high. These were to be my best and last earphones I'll have but it didn't happen. Overall the sound is warm and smooth . It is balanced and nothing really jumps out at you. The bass is as fast and snappy as I've ever heard , the midrange was sweet and nice and the treble quantity was just perfect.
   Unfortunately I love Vocals to be more up front so I can enjoy them and have the rest of the music seperated and moved to the background and as i heard that the Westones are Mid-centric , thats what I expected to happen, but no. They treat all frequencies more or less equally. 
  All in all these are fantastic earphones which perform great in nearly all genres due to their balanced sound but also dont WOW you , dont jump out with anything at you. Objectively I can say that they are the best I've heard so far but I had to sell them as they werent anywhere close to the end of my journey - "My Audio Nirvana"


100+ Head-Fier
Pros: Cable, fit, looks, balanced sound
Cons: Veiled sound
*I listened to the Westone 4Rs using iPhone 4S and the latest iPod Classic (6th Generation). The below sums up my listening experience from these sources only.*
The Westone 4Rs fit my ears better than any other earphones. With good tips, like Shure’s Grey Flex or ‘Olive’ tips, they feel snug without causing any discomfort. The nozzles on the 4R are shorter than that of Shure SE535 so the sound isolation isn’t quite as good, though they still do a reasonable job of blocking out external noise. As explained in the user manual, pulling your ears up and back helps to get a deeper fit when inserting.
The excellent cable is a sensible length (unlike the too-long Shure’s), tends not to tangle and has a short plastic ‘memory wire’, which keeps the Westones in place. The cable attaches to the earpiece with a two-pin connector, which is a less fiddly solution than the swivel connectors of Logitech’s UE 900 or Shure’s SE535.
The Westone 4Rs are warm tonally. I find their sound fairly balanced, with no frequency standing out above the others. The imaging is amazing too; there is a 3D quality that I’ve seldom heard from other earphones, though this only becomes apparent when the volume is quite loud.
I wanted to like these earphones, I really did. I ultimately sold them because they sound slightly veiled to me, as if the sound passes through a piece of material on its way from the drivers to my ears. I sensed a loss of sparkle and detail that I just couldn’t get past. I wouldn’t go as far as calling the sound muddy or cluttered, there just didn’t seem enough ‘air’ surrounding the music.


500+ Head-Fier
Pros: Awesome sound quality and highly comfortable
Cons: Price
Westone W4R, is my most favourite IEM so far, probably one of the best that I have ever tried and worth listening to.
I'm a music lover and been listening to music with earphone and headphone for more than 20 years, to this point, only Westone W4 and W4R truly fascinates me with the performance to play musics beautifully without the ear fatigue.

Combined with the latest STAR tips, this Westone W4R sounds very great for me listening without amplifier (or even with Fiio E11) to MP3 320 kbps and FLAC musics and also Audio CD.

I'm listening to guitar centric music and orchestral musics (Symphonic Metal, Gothic Metal and Unplugged musics), this IEM is truly fantastic.

the only downside is just the price that is quite steep, but rest assured, Westone customer service is one of the best in the world, they will gladly replace your broken IEM with the newer model and send it to you with FedEx even half way round the world.

So be prepared, once you listen to your music with this pair of IEM, you don't want to downgrade or go back to the lower music source, everything must be lossless or Audio CD at least, and so far the only sound quality that can beat this IEM, is only Custom IEM which is way much more expensive than this Universal IEM.

You won't regret investing in this high grade IEM only if you dare to be impressed and uplifted in sound quality standard.
If you are interested in these IEMs, please contact our office at 212-585-3242. We are currently offering 10% off our IEMs and custom plugs.


1000+ Head-Fier
Pros: Better soundstage than my 530. Mids blend into treble very well. Treble not harsh or sibulant
Cons: Plastic sleeve cut off,leaving about half inch for cable support.
I have had many in ear and,on ear phones over the years.I currently use hd800,and also the 4r. At 72 years old,my hearing has changed,so my thoughts might not be the same as yours.I found these needed burning in to get the best out of.Before burning in,i could not get comfortable with them,because of the plastic sleeve supporting the cable So having (VERY CAREFULLY!.) removed the sleeve,leaving about half inch for support,they are now,the most comfortable in ears ive ever had.The bass at first,seemed a little lacking,but blends very well into the mids without any noticeable overhang. The mids again blend well into the treble without any bleed. Having used a few different buds,i have got an even better seal,meaning the bass has improved somewhat,with greater depth to the overall soundstage,which I feel is deeper and wider than the 530. As we all have different ears,these  comments are the things I am hearing.They I am sure,not everyone elses!. Do  I fee it was worth changing to the 4r?. Yes without a doubt.BUT, if you have the 530 or 535 be happy.Those Shures are very good.


100+ Head-Fier
Pros: Awesome sound quality, excellent isolation
I had these for about 3 months now.  I can say that this is an eye-opener for me.  I had lower tier IEMs before, namely Sennheiser CX-300, Beats Tour (aweful build quality), Klipsch II, Brainwavz M3 etc.  and I liked the sound of those for their price, except for the Beats.  I always saw the higher priced IEMs like the Westone series in stores and always shrugged off the idea of them sounding that much more in relation to the price increase.  That was until I caved in and bought a UM3X. Honestly, I was disappointed with the sound because I felt it was congested and has too boomy bass, that was until I got my brain wrapped around the sound and it became awesome, too awesome that I got more curious on high-end IEMs.
Enter the Westone 4R.  I bought these originally to compliment my UM3X and what a surprise.  The negatives I initially found with the UM3X was gone as now I have a wider soundstage and a little less boom in the bass.  I can't praise these enough that I upgraded all my other gear, I got better amp/dac to pair with the W4R and it keeps getting better and better.  I don't think I can go back to anything less than what the sound W4R produces.  I am sure there are other better and more expensive IEMs out there but until I can afford them, I am very happy with my W4R.  And I know that even then, I would probably still keep my W4R around. 
If I had one gripe it would be the unbraiding of the cord the more I use it. I noticed some areas wherein the braiding becomes loose but no biggie, I read about this here at head-fi before that's why I chose the removable version so I can easily replace them.


New Head-Fier
it is the best headphone i have never had! It is a perfect headphone!
Never had?? Then why this review :)
Never know, it might be the real 'zizou' (Zinedine Zidane) writing the review. For some reason I doubt it though...


100+ Head-Fier
Pros: Great detail, balanced sound
Cons: Bass roll off @ 40 Hz and HF roll off >16 kHz
Great universal IEM. Highly recommended.
Night Crawler
Night Crawler
Thanks! Bought 12! ^_^
Yes I bought one too :), what does it means by "balanced sound" ?


100+ Head-Fier
Pros: neautral sound, soundstage, great treble, great mids
Cons: bass can lack punch, poor sound isolation
DISCLAIMER: I am not an audiophile. I am an audio appreciator. I hope.
Overall I'd say that the value for these IEMs is pretty good, given how it sounds and what it does.
Highs - The highs for this is clear, crisp, and it sounds really good. It's not distorted at all no matter how much is going on, and the separation between the highs and mids is clean.
Mids - The mids are full and neutral. Its detailed without being flat, but there doesn't seem to be much coloration to it either.
Bass - It's there, but it's not in your face. If you are wanting "boom boom" or like to 'feel it' then these will be lacking in the bass department for you. That's not to say that the bass is missing, it's just not as present as in other IEMs. (Such as the Shure 535s.)
Soundstage - The soundstage sounds better than any other IEM I've heard. The soundstage for this sounds like a cross between the soundstage on the Sennheiser HD650 and the Byerdynamic T1. That is to say, it makes orchestral music sound great and reduces the feeling that you're just listening to noise, everything is clearly separated.
The IEM is light and easy to put in. It feels like the IEMs aren't even in my ear. The cord looks like cheep plastic, but its also very light and doesn't get in the way when you wear it. (I've not had any issues with the cord, its sturdy enough... just shiny plasticy black.)
I actually like the foam tips on these. They're more comfortable to me than Shures Olives. (Shures foam tips.) These are the second most comfortable IEMs I've worn... the first being Bose IE2. (So easy to put in!/wear!) They're light, comfortable, and sound great! The cord isn't that long, but it's the perfect length for DAP use.
It's "ok." but it doesn't block things out as much as I would think/like from an IEM that goes that far into your ear canal. It's not a big issue unless you want to use them in the subway or a noisy area.
The sound quality coupled with the comfort of wearing the Westone 4Rs is hard to beat. The biggest drawback is if you are looking for more "oomph" to your bass, with the second lesser drawback being the sound isolation. (Though you can always put Shure Olives onto these... its a bit of a mash-on, but they do fit. At least for me.)
If you want more omph to your bass and are willing to give up a -little- bit on high/mid/soundstage, think about the Shure 535s.
I realize this is an old review, but on the topic of sound isolation I would check your fit with some other tips.
Generally I start with the largest and work my way down. With the 4Rs + the large (orange) foam star tips, I if I hold my hand about a foot and a half in front of my face and snap my fingers moderately hard I can barely hear it.
That said, I started small and worked up when I was testing tips with these IEMs, and the isolation sucked in my ears until I got to the largest (orange) foam tips, which are phenomenally good for my ear shape.


1000+ Head-Fier
Cons: bass may be lacking a bit
Amazingly detailed and never fatiguing
*sweet highs
intimate and detailed mids
bass is excellent for me but mostly may not be for some but amp will help