Sorry for the TL/DR story. But if you're about to drop large sums of money on a product you might want to read this.
I purchased a set of IEMs from them and experienced a weird anomaly in which my right IEM experienced volume attenuation to the point where I thought the unit had died completely or something was wrong with my cable. I put a second cable in and it work fine. Oh, I forgot to mention the 2 pin terminal on the right IEM was tight to the point were when I'd plug in the cable, it hurt my thumb and left a dent in it that took approx. 45 seconds to rebound. I mention that detail to illustrate, if my thumb is receiving that kind of pressure, so is the port on the IEM. After this happened repeatedly I reached out to MusicTeck thinking I'd do an exchange for a new pair in perfect working conditions. Their response was, IF we could recreate it we'll send you another pair. The cable that I originally used worked flawlessly for a couple days of frequent use. So that made me little nervous. I told them a story about my best friend who had that exact phrase told to him when he bought a car and the transmission was slipping. Long story short, they couldn't recreate it and his transmission blew two days after his warranty was up. They responded to me saying we're not a used car dealership will take care of you. That set my mind at ease and I went on with my exchange process. Fast forward to when they get it they tell me they can't recreate the situation. They said they'd refund my money, and I said what about the exchange I just wanted another pair of them I like the IEMs a lot I just want a working pair. They said that I would keep having that problem because the terminals are tight on all the units we've tried so we'll just refund you the money. And I replied it'll happen to me but it won't happen to someone else? And the whole thing just seemed weird so I went on their website and noticed that they're sold out. They were supposed to put one aside for me but they didn't they lied and said they did but clearly they didn't. I said to them I've never had a company be willing to refund the money but not doing exchange. I've had the opposite happen but never this. They gave me their number and told me to call them. I did and we went in circles basically saying the same stuff that we said through the emails. Where at some point the guy got mad and said we're refunding your money and hung up in my face. I have the opportunity to buy these from another place but they're sold out at that place now too. I chose this place based on the reputation and the fact that they're fairly local to me. I also sent five other people their way to get the same IEMs. If I wanted to let someone borrow money I would have let one of my friends borrow it. I wanted to purchase something that's why I gave them my money. But greed got the best of them and instead of putting on a side for one of their customers that they knew wanted an exchange they chose to sell the last one. Apparently Gordon Gecko isn't the only one that thinks greed is good. This company is terrible. It's one thing to be lied to by a company but to be disrespected on the level of them hanging up in my face. Wow that's customer appreciation. So be reluctant when you're about to drop $6,000 on a set of iems or $8,000 on a limited edition cable they're currently selling. Because if something goes wrong with it and they have the opportunity to sell the last one to someone else knowing that you have a problem with your's and you want to exchange it, they're willing to lie in order to not fulfill your order. They're all about the cash grab.