After about 6 months of constant use I can say that these earpads are much more than just a replacement. An affordable, yet worthy upgrade to the flimsy OEM pads that come with the MDR-7506's. They are way more comfortable and durable than the stock ones. Noise Isolation is about the same, possibly better but definitely not worse.My only con would be that the installation is not the easiest, but it's the exact same as most other headphones. I would suggest a guitar pick or if you're careful enough, a small flathead. All in all if you're considering these, do not hesitate. They are well worth the sub $20. (BTW I'm using the standard black ones.)
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