FAAEAL HD600 Balanced Cable Replacement for Sennheiser HD650 HD660S HD6XX HD580 HD58X HD545 HD535 Headphones 4.4mm Balanced Male Jack Extension Aux Cord 4.9ft

I hooked this cable up to my Tipsy TTROMSO iems and it is a perfect match. The sound quality is great. No microphonics and it is a nearly perfect flush mount. This will not work if your earphones have a recessed connection point, so be aware of that, but for the flush mount of the TTROMSO (and others) it is great. Definitely a high-quality cable for a reasonable price. I like the feel of the Tripowin Zonie cables a little better, but none of them are a flush mount. This cable is the perfect alternative if that is what you are after.

A/B test your cables guys! People say it's snake oil but you can hear for yourself that it's not. I've tested out 7 cables and they all affected my audio in many different ways. Here are my reviews for them ranked from best to worst.#1. $21.59 | Youkamoo 8 Core Silver Plated (3.5mm) - Grey- This one was almost a night and day difference from the OEM. I immediately noticed how my songs opened up and the highs just sounded so nice and sparkly. It wasn't an increase in treble but more that I heard details in the highs that I've never heard before. For example, I can hear these subtle mouth noises a singer makes when they sing that I never noticed before. It was almost mind-boggling. I definitely hear an increase in soundstage and detail overall. The lows sound the same and the midrange/vocals sound even better.#2. OEM Sennheiser Cable- Surprisingly the OEM cable that comes with the headphones sounded better than most of the 3rd party options I've tried.#3. $15.99 | FAAEL HD600 Cable (3.5mm)- This one sounds really close to the OEM cable that maybe it should be tied for 2nd place. I could've just been biased towards the OEM cable because I've used it for so long, but I would say the OEM cable just sounded ever so slightly better. Compared to the #1 cable, this one just had a little bit less detail and it didn't add that sparkle that the #1 cable adds. Overall, it was just a tad bit harder to distinguish and pick apart instruments during choruses.#4. $23.99 | Youkamoo 8 Core Silver Plated (3.5mm) - Black w/ translucent connectors- This one looks the same as the #1, apart from the color and the piece where the two cables fuse into one. But it didn't sound as good. It was noticeably less detailed and worse than the OEM and the #3 non-silver plated cable. Can't really explain it other than it just didn't have that magic that I was looking for.#5. $16.00 | NewFantasia Upgrade Cable (3.5mm w/ 6.35mm adapter)- High are noticeably degraded and lows are less extended. The soundstage is definitely narrower and not in a good way. This cable just sounded worse than OEM.#6. $29.35 | Hilitand Cable, Double Needle 8 Core Balanced OCC Silver Plated- Overpriced and you can buy the same cable (see below) for 1/7 the cost.- Either this is a poorly implemented silver plated cable or they're outright lying. The audio sounded so grainy and my songs lost so much detail, especially in the highs. Hi-hats and cymbals were hard to distinguish and vocals lost their airiness.#6. $4.35 | Double Needle 8 Core Balanced OCC Silver Plated Audio (Same as above)- See the review for the Hilitand cable since this is literally the same cable for 1/7 the price. They both sounded exactly the same.

I used this cable with my new Sennheiser 660S2. It works great.

The cable works fine for the most part, but the microphone is mediocre quality. It's probably fine for a basic phone call, but I wouldn't choose it for video calls at work. Also the volume buttons don't seem to work right on my iPhone 16 Pro using the official Apple USB-C audio adapter. If I press volume up, it slams the volume to the max. Same thing for the volume down button. I'll be returning it.

I’ve just begun to use these cables. I’m a newbie to balanced personal audio and these certainly brings out the best audio quality of my mini-dac and Sennhesier HD 650’s. The connections are solid and seem reliable. I can’t comment on durability yet. We shall see….

The product looks good at first glance, but the quality is so poor that the connector cover caps come off on their own and end up getting lost, as was my case. Amazon shouldn't allow the sale of such poor-quality products on its site. Look for another option, you'll surely find one.

Cable worked fantastically with my 660s' headphones, and my balanced amp. The cable is nice and flexible, well built, and hasn't disappointed me in any way - all at an excellent price.

It works. But the connector cover came apart in literally less than a week. Gonna glue it back together I guess