LinsoulSIMGOT EW300 1DD+1Planar+1PZT Hybrid Driver in Ear Monitor, Wired Earbuds IEM, Gaming Earbuds with Detachable Nozzles, Silver-Plated OFC IEM Cable for Audiophile Musician (EW300 HBB)

Arrived overnight in a secure box enclosing the fancy looking IEM box. Very nice. The cables snugly attached onto the IEM shells. Nice labeling to indicate LEFT and RIGHT. Came with 3 sizes of ear tips and installed the medium size giving a great fit as if the IEMs were not not in my ears. Well done. Tried the gold nozzle but it reduced bass and treble. Preferred the silver ones which are straight thru while the gold ones have a plastic deflectors around the IEM exit canals. Using a DAC/AMP with 2 watts per side fitted with AKM 4499+4199 chips. The IEMs are quite efficient and did not push them too much but did at first. The BOTTOM HALF covering the bass is very powerful, articulate with good definition. Terje Isungset's In Memory of Nature Pt. 2 has a bass reproduction that can rattle you brain. Porcupine Tree, Dayshell, Of Mice and Men metal offerings come out very full and bombastic sounding. Phronesis, GoGo Penguins are clean and powerful and clean. Acoustic bass from Nenad Vasilic and Terje Gewelt are powerful and clean with great articulation. The UPPER HALF is where it can get tricky. If pushed to hard, the treble can get tizzy and chaotic lacking instrument separation especially when it is crowded with too many high pitched instruments. Like in Nika Niles' Synergy, it is very hard to differentiate the high hat, crash, ride, and splash cymbals...they all pretty much sound the same and indistinct - just one TISSHHHSSSHH. This very likely due to the design using Piezoelectric drivers that gives the tizziness in the upper registers especially with cymbals and not-so-good recordings. I do not know if this weakness in the sound reproduction will settle down after 100 hours of playing. This IEM seems to work well with pretty much any music genre including classical and female vocals. I think this IEM is fairly priced for the musical listening pleasure it will give you.AFTER 50 HOURS BURN IN: The upper registers in the treble region settled down and it is now amazingly clear and coherent from top to bottom with very little tizziness at the top. This is an amazingly dynamic and musical IEM. Kudos to the Simgot engineers for producing this gem.

I wanted to give these a few days before reviewing. I'm not an audiophile, and my gear is budget-oriented. I used to buy IEMs before the chi-fi revolution when you’d pay more for less.Choosing a pair of $80 IEMs in this market was tough. So many great models out there.My primary criteria were soundstage, Harmon-ish tuning, clarity and separation. I narrowed things down to the EW300s, Hexas and Aria 2s. Figured the Simgots would be more fun than the Hexas. The Arias supposedly have a killer holographic soundstage, but QC complaints scared me away. There's a cool Youtube channel “Glenn Gane Audio” that features audio simulations of iems back-to-back. Very helpful channel.The look and feel high quality—nicer than more expensive sets in my collection. Great accessories. The cable is perfect for me, feels good, and looks pretty sharp. These shells are relatively tiny, and sit inside the ear without any protrusion, which is pretty cool for a hybrid. They’re also my most comfortable set, and stay put in my ears.As with other headphones/iems, volume output is lame on iOS devices, so I picked up a Qudelix 5k USB->iPad Pro and the Simgots came alive. They perform much better with extra power, and do well with EQ. I wasn't sure how well this set would handle heavy EDM sub-bass, but it manages.Separation and clarity seem good. I've found that the 4k 11.3k region can get a bit hot, which could potentially be fatiguing, so I adjust EQ. The bass is full, warm, and relatively punchy. At the moment, I’m using the gold nozzles with foam inserts that are part of the accessories kit. Wanted to see if it could take some of the bite out of the treble. I might prefer the silver nozzles sans inserts. Still A/B-ing them.The silicon tips are great and stay put. Although the nozzles are a bit short for my tastes. Versatile all-rounders with a pretty refined smoothness—but as I mentioned, I’m not an analytical listener, and prefer musicality over analytical. Anyway, zero regrets, and an easy 5-stars.