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I finally got a pair of KZ Z1 last week. I found the KZ Z1 to just be ok and borderline disappointing. It doesn't sound bad, just nothing close to the Fiil T1x or Haylou GT1 Plus. My Tranya B530 sound better also. I don't find the soundstaging to be all that great and the bass vibrates a lot. I wouldn't say the bass is muddy or sloppy, but it does feel like there is a lot of movement of the driver in the earbud and I find it annoying. Some may like it. Imaging and separation are just ok and are simply not in the same class as my other 3 earbuds mentioned earlier. I do like the shape of the earbud as it fits great in my ear. It is very comfortable and the BT connection with both my laptop and Ipad were quick and rock solid. The touch controls also work great. I just wish they sounded better. One more thing, these are LOUD. You will need to turn down the volume or you'll blow your ears out. (Note: I originally ordered a pair from Linsoul and they arrived in the USA a week later. However, they never got delivered to me and I contacted Linsoul several times. When it became apparent that they were never going to arrive, Linsoul refunded me. While disappointed that I didn't receive them, Linsoul's customer service was great. They replied to each of my emails and refunded me. I ended up buying a pair on Amazon (previously unavailable) and received them a day later. If you are in the USA and buy from Linsoul, I recommend you pay the extra $12 for the express shipping, because I think the free shipping option is garbage.
A few notes on my other earbuds, Fiil T1x, Haylou GT1 Plus, and Tranya B530.
Fiil T1x - Of the 4 pairs I have, these are the best I have. They sound great in all aspects and make my feet tap and head move when I listen to music - high "Groove" factor. The KZ Z1 doesn't do that for me. The T1x are very "musical" and fun to listen to. The only negative I found with the T1x is that they weren't super comfortable and became fatiguing after wearing for awhile. I believe I may have solved this issue with getting some Auvio eartips, which seem to make them much more comfortable. The BT connection withe the T1x is quick and rock solid.
Haylou GT1 Plus. - These are so sweet and natural sounding. To me, these sound much like the Fiil T1x, but with a lot less power. The sound is kind of like a T1x, but with a much less powerful amplifier. Unlike the T1x, KZ Z1, and B530, the GT1 Plus feel super light and cheap out of the box. When I first got them, I was very unimpressed with the physical feel of the storage box and earbuds and they felt like toys. Additionally, I had to reset mine out of the box to get both the channels to work. But, once I got them to work, I was blown away from the sound. I literally could listen to these all day and these have the "groove" factor I mentioned above - they will make your feet tap and body move uncontrollably to the music. The downsides are that the BT connection is weak and I can't walk to the other side of the house like I can with the T1x. Also, I've had to reset the GT1 Plus at least 3 times and they don't always want to connect. Also, as reported by others, the volume is very low, so you will be close to max on the volume when you use these. I'm also annoyed by the sensitivity of the touch control as I find it impossible to adjust the earbud without pausing the music from the touch control. But, for $25, these are a steal.
Tranya B530 - These are overall good sound buds but they they have connectivity issues with external BT transmitters and my Dell Laptop that has built in BT. When used with an external BT transmitter, it will power off after about 4.5 minutes. On my Dell Laptop, it will randomly disconnect for no reason. The B530's work fine with my Ipad and phone. I contacted Tranya about the connectivity issues I was having and I was told they do all their testing on phones, not PC's and Transmitters. So, if you are planning to use the B530's on something other than a cell phone, don't bother. I don't have the connectivity issues with my other 3 eabuds when using a transmitter or PC. Only the B530 have this issue.
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