YJust got a Whizzer HE01 IEM.
OOTB, very nice packaging and shell design, I think it is very elegant looking compared to the usual metal shelled IEMs. My wife who is usually anti earphones and was gonna scold me for getting another IEM, came over to check out the damage. Then she went silent for a minute. Her next grudgingly spoken words were along the line that this is not a bad looking set, and that she wouldn't mind having it LOL.
Accessories are rather generous for a budget set - comes with a round metal hard case, silicone eartips (both narrow and wide bore), cleaning tool and a nice braided cable. I find the narrow bore eartips tend to boost bass, the wider bore ones tend to boost the upper mids/treble, YMMV as we have different ear anatomies.
Isolation is above average for a single DD vented set, fit wise, it is very light and comfortable. I liked that the Whizzer HE01 features a 2 pin connector, I've had my fair share of issues with budget CHIFI MMCX which spun like a helicopter after repeated cable changes (cough cough urbanfun, actually it isn't urban nor fun when that happens). Only thing to note though is that the 2 pin connector here is protruding and may not fit all aftermarket cables, so just a point to note.
At a sensitivity of 112dB/mW, the Whizzer HE01 is easy to drive, but like most other single DD types, it scales with amping.
But of course, accessories and looks are secondary to sound. Now on to the sound, OOTB impressions: The Whizzer HE01 is a mild V shaped set, timbral accuracy is good as per its single DD roots. Note weight is about average. Technicalities are very good for a budget single DD, soundstage is definitely above average to good in height, depth and width. Clarity, imaging, instrument separation and details are really quite good considering it is a single DD set. One thing that stands out immediately are the very fast transients. Music never sounded congested. Would have to do some A/B testing against some well regarded single DD budget sets like the BLON BL-05S, HZSound Heart Mirror, iBasso IT00 over the next few days to see who is the technicalities king though.
For more sound impressions, this set is not a basshead set in terms of quantity, but bass is definitely north of neutral with a great punch in the midbass. Midbass is more accented than the subbass, but this set can still extend quite well in subbass extension. Bass quality wise, while there isn't marked midbass bleed, the bass isn't the most textured and can be one noted at time, but that's something I can close one eye considering the rest of the tonality is quite good. Lower mids are midly recessed, not overly so. Upper mids are at the borderline of spiciness for me for some songs, but otherwise, it doesn't really get into very banshee shouty territory (cough cough Moondrop SSR) unless one jacks up the volume a lot (Fletcher Munson curve), or on some poorly recorded materials. Treble is moderately extended, though there's mild instances of sibilance. Microdetails are quite well captured and cymbals ain't splashy or unnatural.
I think due to the tuning, this set can be quite all rounded for most music genres. I'm a budget single DD fanboy and this set is really quite good, it seems to do well in most areas OOTB. Will do more A/B testing this coming week and report back soon!