Dekoni Audio Earpads for Sennheiser HD600 HD650 HD660S HD6XX HD58X | Premium Replacement Ear Pads for Sennheiser Headphones | Soft, Durable, High-Fidelity Comfort Upgrade (Elite Velour)

I bought these for my (Mass)Drop HD6xx headphones because I've really worn down the original ones.Installation is a breeze--you just line the pad up in the middle and press down on the pads til you feel a click. Removing the old pads was a bit tricky. I basically tore one pad away from the mounting ring because I grabbed it wrong. The glue was probably also starting to weaken. If you're trying to keep your old ones intact, my advice would be to be certain that what you're grabbing is hard plastic, and pry up from the inside of the ring. If you do what I did and pull the pad away from the ring, a spudger or thin standard screwdriver can be used to pry the ring up from the outside of the ring so you can mount the new one. If you aren't sure whether you got the ring, the inner foam cover that sets between your ear and the driver should be loose if you got the mounting ring. If you didn't, the foam cover over the driver will be stuck in place.The new ones are a good bit thicker than the original ones, so I had to adjust the band a bit to fit comfortably. It's hard to imagine someone with a bigger head than mine, but I suppose it's possible you might max out the band before getting to a comfortable position. It's also worth noting that the sheepskin exterior is keeping my ears warmer than the solid velour original ones. You may prefer the plain velour ones if you run hot. They are less breathable than the original ones, but a good tradeoff between full sheepskin and full velour. Hopefully the foam core will hold its shape for a while, but I can't speak to that yet.I'm too old to be much of an audiophile anymore, but I will say that from my own perspective, there's not a substantial difference in the way things sound with the new ones installed vs. the original ones. I like the way my HD6xx faithfully reproduces music, and I'm pleased to say that these pads didn't affect it much, at least as far as I'm able to tell. There may be a touch more isolation thanks to the sheepskin exterior, but it's not substantial. These are open-back headphones, so that's not what I'm after when wearing these anyway.

I've had my HD6xx for about 9 months now and I love it. The stock pads were starting to flatten out and they lost their solidness. The sound was still good, but when I put these on, it sounded a lot more full and surrounded my ears better. These pads feel like they'll last longer than the stock pads because, with the sheepskin, they seem like they'll hold their shape better. All velour is nice and feels great, but this is a mix of the best of both worlds. The part of the pad that touches your head IS velour, so you still get that smooth silky feeling against your skin. I give this product 5 stars all around. Great replacements for stock earpads on this Sennheiser series of headsets. Grab one now!Edit: I wanted to mention the sound. For me, the sound signature wasn't changed much. If anything I like the deeper bass and the every so slightly toned down highs. Santana's Africa speaks has a lot of electric guitars that used to grate on my nerves. I can actually stand it now using these earpads. I wouldn't worry about it sounding awful, it's perfectly fine. I often wonder why people rag on the sound of these after owning them for a bit now. I think some people just like to complain. Always keep that in mind as you read Amazon reviews. Good luck!

Very comfortable and made with nice material. Only lasted about a year unfortunately, had the plastic break apart and the glue separated from the plastic (similar to other reviewers).Contacted Dekoni support and was told that they could replace them, so I sent the pads out and haven't heard back for 2+ weeks. I have reached out multiple times asking for an update but they have gone radio silent.Update for this review:I have since heard back from Dekoni support after reaching out a couple more times. They said they had not received the package, but after sending the tracking info they said they were sending out replacement pads. We'll see if they end up lasting longer than the old ones did.

These things are definitely worth the higher price tag. I can't compare them to other cheaper options, but I can't imagine the cheaper options doing the job better than these.Big pro: They couldn't be easier to install and they stay in place pretty well.They are SUPER comfy. The fenestrated sheepskin does not run hot at all. And this is coming from someone who runs VERY hot. Also, I never find myself having to adjust them like I did with the stock Sennheiser cushions that I was using.They also do not alter the sound much at all. If anything, they amplify the base a bit and (in my opinion) improve the sound overall.