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Very impressed with these IEMs. Got them about 5 months ago and have been using them regularly since. Very crisp, clean sound, without sound sterile. They are very musical. I also got the ThinkSound ON2 on-ear headphones and in my opinion they bring excellent life to my rock and jazz collections. There is a slight boost the the mid-low bass, but not the sub-bass. The sub-bass is still there, it just hasn't received the slight boost. Overall the build quality feels good. They don't isolate sound as well as some of my other IEMs which I think is the result of the pinhole in the back of the casing. They added that pinhole to resolve some other audio issues with the previous generation. They also look great and I have gotten several comments on that :)
One issue I have with these is the round, inline mic/control. I find it very frustrating to try and click the control since the inline control is round and the button is almost flush with the casing. When you are in a hurry and not looking at it, I have to roll it between my finger carefully to find the button. I wish they would change that.
As far as the noise from walking/moving that others have mentioned, it does exist, but I find that if I loop the cable over my ear 95% of it goes away. Overall a good buy, especially at the $65 price point
I've been using Thinksound's earbuds and headphones for three years now. Haven't found anything better!
I'd skip these. I'm very gentle with my headphones and I've had 2 pairs of the MS-01s and the wood and metal always end up coming apart. Sucks, they sound great but don't hold up.
I’m going to post a stupid question that hopefully someone can answer. If I picked up a pair of these I’d use them for casual listening with my iPhone X. That would mean I’d have to use the adapter for my lightning port and it gives me room for pause since that’s obviously not ideal. Granted the music will be streamed from Spotify and Audible so it is what it is, but will these be adequate for that task?

I understand from what I’ve read that the volume will be good and won’t need any additional help, but what of the sound quality or degradation from being pushed from an iPhone and then the lightning cable adapter?? This is slightly vexing, does it even matter the quality of iem‘s At this point or am I just being ridiculous. Help needed from some knowledgeable audiophiles and subject journeyman. Thanks in Advance, cheers.
I like these a lot. V-shaped sound with a lot of emphasis on the tightness of the bass. The sound is slightly reserved but not recessed.

Isolation is the weak point. A lot of sound (microphonics?) is produced while you walk. The shirt clip somewhat helps. Also wind affects the iems. Durability wise the cable is a little thin but they havent failed me yet.

Overall a nice purchase especially at US$70.
toranku
I wouldn't really call them V shaped due to some forward vocals.

Also try spinfit tips. Isolation won't be much better, but deeper insertion will allow you to move around easier. I exercise with them often
dominica
Thank you for the recommendation. I agree with the forward vocals, especially on female voices. To me it's a slight V-shape due to the reserved mids
I like these very much. After cycling through various IEMs around this price range, these have a permanent place in my bag every day and are my go-to choice for when I want some sound isolation and to focus when I'm out of the house.

About the only thing they don't do well IMHO is certain registers of deeper sub-bass, mostly below what is produced with natural instruments (EDM, Hip-Hop range). If that is all you listen to these probably aren't for you, otherwise I'd say go for as these are plenty good for casual listening in those genres and really enjoyable when listening to most other categories. They are also durable and comfortable.

They also aren't super-picky about amplification. I have other nice IEMs that sound wonderful with an amp but these are enjoyable straight off my laptop or phone so they get more practical use.

If I lost them at the moment, I'd probably buy another pair immediately.
Thinksound builds some of my favorite IEMs around. It's my humble opinion that their bass response is top tier, and that each of their IEMs (at least from the last two generations) are masters of cohesion. The TS03 is no exception. It has a warm sound signature with elevated vocals and upper mids for added clarity.
Find my full review here: https://medium.com/resonance-reviews/thinksound-ts03-mic-review-warm-and-detailed-a-prime-example-of-how-to-do-dynamic-right-125c2adbbe8a
Got these same earphones on the las Thinksound Bluebox, and are just awesome, are my daily pick up for conmute in bike or walk.
Just received the ts03 - really like the sound signature and sub-bass extension is exceptional. I have opening notes on a song (Oi by Biosphere) that very few IEM's can hit successfully with good texture. Pretty impressed at the sound and value of these puppies.
I own these and the older TS-02. The redesign is great, the cord gets caught far less, more detail retrieval, better and tighter bass, highs are more crisp. I paid almost full price and regret nothing. Laid back sound, they take EQ very well. I love their house sound. Each version just gets better and better.
Good timing. Just released a review of these beauties today :)

https://thecontraptionist.blog/2017/10/18/thinksound-ts03mic-natures-bass/

Really torn between these and the on2's also on massdrop right now D:
tehbluearrow
If you can afford the On2 just get them. They're amazing, esp. at that price.
Found this over on Head-fi. I was looking for a comparison to the rain3 which I received from the last bluebox and like. Wanted to see if it'd be an upgrade or a different sound or ? Anyway, this compares to both the rain3 and the ms02.

https://www.head-fi.org/showcase/thinksound-ts03-mic.22551/

I'd like to find a comparison against the Mee Pinnacle PX (or whatever Massdrop's variation of the P1 is called) but haven't found anything.
bsoplinger
I myself have been interested in the Pinnacle PX vs TS03/Rain3, but I can't seem to find a way to get the PX in for review.
Here’s my full review: https://carrotreviews.wordpress.com/2017/08/23/thinksound-ts03/
tl;dr is that they are super laid-back and relaxing IEMs. The downsides being no detachable cable and minor driver flex issues.
I received a pair of these when they did a grab bag a while back. I paid $35 for that gamble and let me say, these things aren't worth more than that. The sound is mediocre; definitely not worth 65.
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Fair point. I had two other people compare them with the cherrywoods. They felt the same way I did; perhaps we just have similar expectations.
UrVAITguy
Ya that very well could be..that said, you know your preferred sound signature better than anyone else does, and it certainly should be realistic to expect a higher priced model have a more refined sound etc than the lesser priced models. Definitely an interesting scenario!

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