AHG Perforated Sheepskin Replacement HD 650 / HD 600 Ear Pads Cushion Compatible with Sennheiser HD 650 HD 660S HD 660S2 HD 600 Massdrop X HD 6XX HD58X Jubilee HD580 and HD565. Dual-Layer Foam

After my 1.5 year old HD 6XX original pads started to split and flatten from daily use and having noticeable "tiredness" to the sound, they needed to be replaced. The AHG replacement pads were a breeze to install and fit perfectly, just make sure the plastic tabs are pushed in all the way. The pad material is firmer and more fibrous compared to the old originals, but are still comfortable. The foam inserts are thinner and visibly less porous, with a slightly larger circumference than stock, but still fit and feel fine.With the new pads and inserts, the sound signature sounded warmer than original, with the sound stage seeming more enclosed. I decided to experiment using the old and new pads and old and new inserts, comparing them side by side.*The change in sound signature people are likely experiencing is due to the inserts - not the pads.* The AHG inserts make low end signatures "muddier" and slightly more pronounced, which is really only discernible when doing the side by side comparison. High end is still crisp, but depending on what you're listening to, you may experience some midrange interference from the change to the low end.Any negative sound changes from the pads are honestly negligible. The new pads do sit farther from the ear than old and flattening originals. The new pads solved the sound leakage from the worn pads, effectively refreshing the headphones. Your experience may vary depending on the condition of your old equipment.TLDR:At less than half the price of genuine Sennheiser replacements, these AHG pads are well worth the money. If you're concerned with changes to the sound signature, keep your original foam inserts! If this is not an option, you'll still likely get used to the negligible sound change within a few hours. If your old pads are worn, you'll still experience a better sound.If you're the type who will be bothered by this and are willing to pay the extra premium, consider the genuine Sennheiser replacements for your own ease of mind. Regardless, annual or biennial pad replacements are a fact of reality for these headphones.I shall see how these replacements hold up. For the price and performance, the money saved justifies itself. 5 star pads, 3 star foam inserts.*Update: After over a year, these AHG pads are holding up impressively well with minimal wear from daily use. Much better longevity than the Sennheiser pads.

This is quality and affordable replacement earpads for the HD 650. They fit snug, you have to press towards the inner part of the ear pad to get it to snap into the headphone. You may need to press it firmly to get it in place. If you do it right it won't pop out. Picture doesn't show it but it also comes with the foam that you place between the earpads and headphone. They're very comfortable. Not much else to say other than it's a perfect replacement.

I bought these because, as any other new HD660S owner might know, the stock Sennheiser earpads while made of soft material feel like they have a very rigid inner ring in the foam that sits around your ear, which can get a bit uncomfortable. I tried both Dekoni's and Accessory House's pads. The Dekonis got returned immediately, they messed with the sound signature WAY too much.Accessory House absolutely nails comfort. These pads are significantly more comfortable than the stock Sennheiser pads. As other reviewers have unfortunately noted though they do mess with the sound signature to a noticeable degree. Not nearly as much as the Dekonis, but enough to darken the HD660S to a decent degree such that if you love the HD660S sound stock, you'll be losing a little in that category in exchange for much better comfort. Worth the tradeoff? That's up to you. I did notice the effect is lessened a bit by using the original Sennheiser inserts alongside the Accessory House pads instead of both the AH pads and inserts, however the headphones are still darkened quite a bit.For now, I think I will continue to use the HD660S with the stock earpads and hope they soften up a little with break-in. But I'm keeping the AH earpads because if the originals don't soften up with wear, I already know I'm going to vastly prefer wearing the AH pads for long listening sessions (I frequently wear my headphones for hours while at my workstation during the day listening to music and various other things while I work), darker signature or not.Final verdict: These are a minimal expense compared to the HD660S and they are of quality manufacture. If you don't love the stock earpads I would get these and keep a pair around just to have an alternative.

For some context, this is a day one review. And mat change over time.Things I've noticed:- the sheepskin feels amazing for those who love leather furniture and seating- the space for your ear seems to be bigger as I do not feel the pads touching my ears anywhere, meaning minimal adjustment when putting them on- the snap in piece to attach them to the headphones (HD650/HD6XX) was a perfect fit with minimal effortSo far I am loving how these feel and may like them more than OEM.No update = no change in my assessment of this product

This is a heavy pad, and the material is blocking all the air flow, so you will get hot quickly.Also, it’s a relatively hard material, very uncomfortable in general.

This will take you about 5 mins if you watch the instructional video. My headphones are like new! Perfect replacement! The instructional video is on the little card inside the box.

I took a chance on these 3d party earpads as I balked at the price of OEM replacements. Installation was very easy, comfort is very good as they are a bit larger and plusher than the originals. But...the more I listened, the more I thought my HD6XXs were missing something. I wound up buying some highly rated planar magnetic headphones and while impressive in clarity, they didn't give me that pure, pleasurable sound that the original HD6XXs (same as HD650) hit me with when new. I broke down and ordered the original pads from Amazon and, wow, what a difference. The SOUND is back! Hate to admit it, but, if you want to preserve the sound that makes the HD650/HD6XX special, you'll have to spring for the original earpads from Sennheiser.