NewFantasia Replacement Audio Upgrade Cable Compatible with Sennheiser HD598, HD598Cs, HD560s, HD598SE, HD620S, HD400PRO, HD599, HD569, HD579, HD505 Headphones 1.2m/4feet

I've ordered maybe 8 cables from NewFantasia/NeoMusicia now for various headphones and they've all been great. Beefy enough and built well enough to send the signal unhindered. Zero change in sound from the stock cables on any of my headphones including Sennheiser HD580 and AKG K712 Pro. NewFantasia/NeoMusicia are great because you can get them in 5ft which is a rare length. I'd recommend looking at these if you just need a different length cable. Audiophiles looking to get that last 1% out of their gear should probably look elsewhere.Solidly built cable. Only very slight microphonics from the nylon braid on clothing. Nothing that bothers on a desktop amp. Nice upgrade in practicality from the 9ft spaghetti cables most headphones come with. Using on a desktop setup with a Schiit Asgard 2 amp. Fits a little tighter in the headphone than the stock cable but still fine. Works and looks great on my HD598s, HD599s. These also fit the M40x and M50x perfectly as Audio Technica uses the same locking lugs as Sennheiser. I ordered one of these for my M40x as well and it works great.As for durability, don't beat on these cables. Just treat them nicely and they will work for a long time. They aren't super tough but they're fine for desktop usage. They really aren't intended or built the right way for portable use. These might not have perfect QC but when you get a good cable they're totally fine. There are several similar cables floating around the internet all using parts from similar OEMs and the ones from this seller always seem to use the best of the available parts. Especially the headphone-side end connectors. They're mass manufactured and cheap but their design means a good one is a good one. They're just copper cables with soldered ends and gold plated connectors. Not much can go wrong. I really like these. Perfect cheap upgrade to make any pair of headphones a little nicer to use.

Update:The 1.5m version of this cable has been going for a decade for me. I've moved twice, put an unknown amount of hours on it over the years (10s of thousands of hours per year easily). This thing connected to my Senny 558s have been my most reliable piece that I've ever owned. I've now bought a second cable with an adapter to connect to my bass Amp. Recommended now and forever.Original review:I bought this to replace that ridiculous cable that comes with the Sennheiser 558s. I needed something shorter and something with a smaller 3.5mm end (the 558s cable is huge, almost the size of a Bic lighter). I found these and they seemed good so I bought them.Pros1. 1.5m was a good length. Long enough for use while walking or sitting at the desk, but not so long that you can jump rope with it.2. The sound is fine by my ears. Sounds the same as the cable it replaced with no degradation or improvement. It's a cable doing cable stuff.3. The braided cable feels of high quality.4. There are springs at both ends to help alleviate the pressure of where the cable meets the sleeves for the connectors. I love this.5. Fits in the locking mechanism of the 558s.6. Comes with a 6.5mm adapter in case you still need one. I don't but I like that this cable replaces both connections just in case. Smart thinking. The adapter also screws in so it doesn't have any wiggle.7. The whole thing just feels really high quality. Time will tell if it's durable (obviously), but on the face of it, this thing looks, feels, and acts like a seriously nice cable.Cons1. None so far. I don't like the whole "proprietary locking mechanism" nonsense that Sennheiser uses because it makes these cables more expensive. Other than that, no problems here. Also, the braided cable makes noise that you can hear in the headphones when it rubs up against itself, but that's true for all braided cables so I didn't see the need to make it its own thing.If the cable breaks I'll come back and change the review, but for now it's everything I was hoping it'd be.