Bought this in an emergency after the tip of the 3.5mm adapter for my HD518s broke off. I must blame that on my own clumsiness, though that default adapter is HUGE and quite difficult to get out of the back of my PC. I ended up bending it twice and have to force it back into position with pliers. Definitely won’t have the same problem now; this comes out and around the corner like butter.Ordered from Audio Equip and it arrived right on time, with sparse packaging in a cardboard envelope. I was a little worried because the envelope looked like it just walked out of a bar fight, but the adapter was fine. No markings on the product, but the little baggy had a Sennheiser sticker on it. Surely legitimate!Adapter, end to end, measured about 9 and 1/8th inches. May or may not vary slightly. 6.3mm end snapped in very satisfyingly, like munching on a delicious, flavored pretzel bite. With the skinny 3.5mm end I can finally put plug my headphones into my speaker setup for convenience and a little more freedom of movement. Sound is just as fine to me as the default adapter.I must say that the cord felt lighter and much more flexible than my headphones’ cord. Same thickness though. May not be as durable, but it’s pretty short so I don’t expect it to get much wear and tear.I will update as soon as anything goes wrong with it. I could have gone with something cheaper, probably would have been just as sufficient, but I felt safer going with a brand I know makes high quality products. Though the Grado adapter was a little cheaper (possibly better quality??), it did look chunkier, something I was trying to avoid due to how my ports are shaped.

I got this particular adapter because of the short length of cable between the two jacks. My previous experiences with other adapters – where both jacks are combined into one piece – were that they would easily become bent, loose and noisy. The cable between the jacks relieves the strain on the 3.5mm jack and I don’t forsee any major damage to the adapter happening in the future. As for the 6.3mm jack, it is very, very sturdy, and when you plug in a cable it snaps in very snugly. Gold plating and good shielding provide for superb audio quality. While the price may be a tad steep for an adapter, I feel like this product is going to last for a long, long time and so I consider it a good investment.

The 1/4″ plug seats smoothly and securely, and the small cable keeps the weight of the 1/4″ plug from damaging the 3.5mm socket. The design is perfect.The cheap 1/4″ to 3.5mm adapters typically have the entire mass of the 1/4″ plug and the adapter prying at the 3.5mm socket. This will damage it over time or very quickly if you bump into it. The cheap adapters also can be rough or excessively tight when plugging in the 1/4″ plug.This adapter is sized perfectly for the 1/4″ plug to be inserted smoothly and securely, and it is well worth the extra bit of money.

The quality of the adapter feels good and heavy. The cable portion is thick and where it attaches to the plugs had nice amount of flex support. It soils work fine with my 1969 Pioneer SE-30 headphones.Another major selling point for me in buying this specific adapter as opposed to the myriad of other cheap ones, is due to it not being made in China as far a I could tell in the ad. Although it doesn’t say in the ad, it had a made in Taiwan label on the packaging which is OK for me although Germany would have been nice.

other people were complaining about the cheaper adapters so i went with the name brand one and its working great