I agree, the hobby is quite a subjective one. With a market full of products for the hobby, it is quite challenging to find the right fit for an IEM that will suit your taste, even more in such cases wherein your preferred sound signature is not of the usual norms. Even in the case of common ones like the bassheads, there still is a distinction as to how one would like his IEM is tuned (some would like a very tight mid-bass or an extended sub-bass, pick your boat ladies and gentlemen).

In my case, it can indeed be challenging. Yes, I would like my IEMs a tad bright, but of course, I have this specific tuning on the higher frequencies that in a split can border beyond ticklishly sparkly or brutally piercing (of course I go for the first, who would want a piercing sound signature? — okay my apologies, some might, although I cringe at that, what the hey, some people says my preference can sometimes be a bit of an ear shredder). However, as I primarily look into the brightness of an IEM, I still would want it to have a bit of body to go along with the brightness and a good, decent amount of mids to keep the IEM glued into my ears for a few hours. I can be specific, but just like most enthusiasts, I would rather go and try to see if it fits my need.

Fortunately enough, I came across this nice little gem from Whizzer, the Haydn A15Pro. Whizzer can be considered somewhat a new brand in the market, but the A15Pro isn’t their first batter off the plate of the hobby as they initially released the A15 earlier. This was an offer made by Whizzer for me to take the A15Pro for a spin and see how well it fares and perhaps to be candid as to how I think about the IEM. To be honest, I wasn’t expecting too much out of the little devil, thinking that it might just be one of those lows-heavy IEM usually coming out in the market. Upon trying though, I will have to admit that my prejudice was unfounded: this devil is actually good!

Let me take you through the IEM and see how it might fit your taste as well.


For one, I am pleased to see that Whizzer did seem to really go through a good R&D time to come up with the A15Pro. For something priced at about $100, this IEM is packaged quite well. I will say that the packaging can actually pit up against even more expensive ones in the market, so this is very well thought of. It has that sleeve that protects the internal box which, upon splitting it open displays the IEM, the ear tips, and the leather case quite well.

Contents are quite good too, with the tips encased in a metallic plate to allow the users to instantly see which one they would like to use. I just thought that they would have used something that would avoid the tips from falling off, but since this is housed in a mold, it is really not much of an issue.


With the earpieces and the cable, I would have to emphasize that the A15Pro has to have the nicest memory wire I have ever tried. In most cases, the ones in the market would have a stiffer memory wire, but this one is much more supple than any I have tried. In spite of it being supple, it still holds quite well, not easily coming off one’s ears. The termination at the MMCX end has an indication of 6N OCC, which means this should have a pretty decent material used for the wires. As for the earpieces, they used quite a heftily weighed metal that allows some premium feel of the earpieces without necessarily being uncomfortable. Upon wearing it, it sat snugly on my ear canal. Not the best fit, but way much better than a lot I have tried, even the more expensive ones.

Another fancy thing that Whizzer added was the leather case emblazoned with a shiny metal plate that bears the brand. I would go about scrutinizing the stitches but then again, overall it is pretty good and should protect the IEM pretty well even if you cram it in a crowded bag.


Overall, the packaging is pretty nifty for something priced as such. As I have said, the packaging was well thought of, and this fact alone can be a considerable factor when shopping for an IEM.


As I have mentioned, I initially thought of the A15Pro as a more common entry-level IEM: perhaps something warm or bass heavy. To my surprise, it sounded way a lot different than what I thought of. While it has a good body off it (was using the AK100/Glove Audio A1 pair), it allows quite a sparkle off it. You see, the Glove Audio A1 typically has a bit shorter treble on it, but somehow the sparkle of the A15Pro compensated for it by emanating some clean yet crisp sparkles. Even by trying it out of humor with the Hifiman HM-901S, it still yielded those crystalline highs but is not to the point of being pointy. Throughout the test, I tried varied tracks and was not able to find any that made it in any way peaky. Mid range seems to be decent, not exactly fat but does offer a bit of afront kind of sound. Imaging wise, the A15Pro seems to perform spectacular, as this must be one of the pros of this IEM. I can definitely feel the layering of the frequencies with the A15Pro, given that it is driven by mid-tier sources. I will say this will be a good IEM for those who wants to venture into the hobby and enjoy a pretty good balance of how the frequencies are tuned.

Let’s see how the A15Pro sounded with a few of my choice tracks:

Elm (Clever Girl, No Drums And Bass In The Jazz Room)

I picked this track specifically to see how well the A15Pro can play with the dynamics of the track and see where it lags behind, which fortunately I didn’t hear any of. The strings were so pronounced that it is actually heard distinctly in spite of quite fast drums arrangement. Brass was not left behind in any way, as much as this carries a dynamic driver, the resolution sounded relatively fast compared to most IEMs in the same price range. I must say, the A15Pro was able to do justice to the track.

Oceans (Floating In Space, The Edge Of The Light)

I picked this track next to identify how well the bass is executed by the A15Pro. Fair enough, I got a pretty decent low-end extension from the A15Pro, not the kind that lingers too much but just right to fully appreciate the sub bass without it feeling clipped nor rolled off. It dwells quite well in a manner that even bassheads will find it sufficient. Paired with a relatively tight mid-bass, I think this will be quite a joy for most listeners.

Snowglobe (Lily And The Pearl, Snowglobe)

With this track, I thought that the guitars could have used a bit of crunch on it. Yes, the opening guitars are clean toned, but it could have been more defined by being more “crisp” (for the lack of better term). It does sound clean, the clean toned guitar plucks still was discernible in spite of the raunchy electric guitar, but a bit more could have been a lot better. Not to complain about it, perhaps I am just being too ideal.


In a nutshell, the A15Pro is an excellent IEM which can make a niche in the market for entry level IEMs. Given it’s detachable termination, I can see this seeing a lot of light given how impeccable the competing market has become over the years.

If you are in the lookout for a decent IEM within $100 bracket, A15Pro is more than that. I will say that this should be part of anyone’s list of options as such shows much love for dynamics and imaging. 5 star for me in spite of the small nuances I mentioned, which the overall performance of the A15Pro easily overcame.

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