Sennheiser IE 800 S In-Ear Audiophile Reference Headphones - Sound Isolating Ear-Canal Fit With XWB Transducers and D2CA Technology, Detachable Cable, Includes Balanced Cables, 2-Year Warranty (Black)

These are absolutely amazing. A quick side note, look for comfortable ear tips. I pulled the trigger on these after reading a multitude of reviews on Hi-Fi Insider, YouTube, HeadPhone forums and can say that after roughly two weeks of trying ribcage them fit snug without hearing my ears they are an absolute win. Everything sounds extremely clear. I do suggest using these with a dedicated dac/amp combo or a hi res audio player such as the Fiio M15. I love just laying back in my chair with these on and sipping on a pour of Macallan 18 whilst listening to some tracks. If you are on the fence about these due to the price then look into the IE 500 from sennheiser.

I almost gave up on trying them to fit at all until I tried the large memory foam adapters, which just barely worked and were still too loose and easy to dislodge. When they were seated perfectly, the sound was absolutely incredible for such small drivers. Unfortunately, the wires are too short and very easy to tug them out of proper interface with the ear, which requires you to compress the foam and hold them in place for about a minute (the 15 seconds they recommend is not enough) to get back to listening. It is a shame that the fit is such a problem because they sound amazing when they are fitted properly. From the lowest bass notes to the highest treble frequencies, the details are ridiculous. I am surprised that they can't find a solution to this problem. I have a pair of 10 year old Moto EH25 and they fit perfectly in my ears and I only wish that the IE-800-S had the same kind of of foam. Also, I don't know whose ears are going to work with the silicone tips, but they are not at all useful for me, from the small to the largest, they just don't make a good seal. I am going to have to get something else until I find something that works.

By far the nicest sounding IEM's i have listened to. I have owned the previous version, the IE 800, and these are slightly less sibilant and definitely less fatiguing without sacrificing too much in terms of the punch of bass that the original ie 800 had. it's a real pleasure listening to music on these.

They sound very good with my Android cell phone, but if I listen to music on my computer with them, their sound quality doesn't come anywhere near my Sennheiser HD800s headphones when both are played through my Questyle CMA600i headphone amplifier (which replaces the computer sound card). And they don't even sound very good when connected to my computer's sound card compared to my Grado PS500 headphones. They're obviously intended to be used with cell phones.

Received with broken package and of course used and only one side work returned the next day

Very very good sound, very easy to wear without any strain, very lightweight, overall amazing

Simply: My purchase arrived in a nice looking box but after opening and attempting to use these high-end and expensive headphones, only one side worked. Strong feeling I had been duped as the seller has been completely silent after attempting to open a line of support with them. Returned and refunded by Amazon thankfully.

I have few entry - mid tier headphones and IEMs....and always dream about IE800....for 500 bucks definitely worth it!