The es4 twisted cable is an improvement over the old KZ cable, flexible and firm, with good strain relief and right angle plugs. The KZ ES4 durability is inline with all KZ earphones from the last 2 years – that are built with the same materials. Read more about the condition New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable). Alas (or luckily) university has kept me quite busy in the last several weeks, so I had to slow down my blogging activity. You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice.

The response to custom equalization of the KZ ES4 was outstanding, bass could be empowered into insane levels of punch and depth; lower vocals got very clear and mid-bass bleed was nearly extinguished; highs became extra bright and open-sounding. Mids are nicely present and very detailed, highs are again very detailed and extended without being too sharp on my ears. Instruments can be a little coloured in image but are precisely placed in stage and not like ZS10 weird stage effect. Detail is also better in the treble and bass regions, while in terms of tuning, they have more emphasis on the usual region across midrange and treble.Whoever at the factory that was supposed to scoop the mids must have had the day off as they are more present in the mix than any other KZ in memory. The sound signature is balanced, consistent from top to bottom, with good deep solid bass, clear mids and nice highs. With a form factor very similar to the KZ ZST , the KZ ES4 offer the same outstanding level of comfortable and secure fit. I still hear the ES4 as a V (and the FR graphs prove that out as the mids are nearly 5db behind the treble and 7-9db behind the bass) but the sound is so well proportioned that it does not listen like a big V but more like a shallow V with a lively presence region. Perfectly blended with mids giving the male vocals and giving the guitar E and A strings a nice flavor.

Here again this is somewhat tip dependant as I found I could influence stage dimensions with the bore of the tips. KZ ZS10: the ZS10 are much more detailed than the ES4 in every part of the spectrum, also featuring much better instrument separation. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. ONE-YEAR - If you are not satisfied with our in-ear headphones, let us know and you will be offered a full refund or replacement.Yinyoo KZ es4 iem has strong performance in bass, midrange and treble; bass, mids and highs are rich and vibrant, midrange density is 30% higher than traditional, details are particularly rich, crisp and smooth. Staying true to my test methodology, I broke in the KZ ES4 for about 100 hours and then tried it with the following sources: Topping DX7, Topping D30 powering a Venture Electronics RunAbout 2.

You cannot expect the super best performance of a pair for just €15, but KZ made it work and I’m stunned. They are not the most detailed IEM in the KZ line (Zs10) nor are they the most neutral (ED16 is closer with a bit of EQ) but they are listenable for extended periods without fatigue and they bring a liveliness and a passion to music which makes long listening sessions seem shorter. Don’t expect anything too fancy; you can hear a good few details, but all the micro-details that often make the difference in telling a really good product from an average one are not there.

It can be an issue and I’m going to say it loud and clear: stay away from these if you think this could be an issue to you. The form factor of the earpieces share some of the curvy shapes of the KZ ZST and KZ ZS10 but have a rear housing’s design that (if seen flat) looks nearly identical to a guitar pick. They’re much warmer and they’re mids-centric, with less emphasis placed on bass and even less on highs.

The shells are almost identical: coloured transparent plastic exposing the internal PCB and drivers. It’s usually just a buck or two more expensive than the previous two, but in terms of clarity, soundstage and instrument separation they are on the next level.I used the ES4 for two or three hours at a time and felt just some slight fatigue, which is quite a good result.