I posted this at another thread, thought I should repost it here too:
Anyhow, thought I share my brief experience with the Aroma Audio Jewel (and the A100TB + PS100). Caveat: I am not so good with terminology and also not a reviewer so please do excuse the poor (tech) language and (pro) organization.
Prolog:
1. Comparisons will be made against the Traillii since the Jewel was touted to be the Bird slayer, which was what piqued my interest in the first place. I think I have been quite clear about how highly I rate the Traillii; the only gripe I have is the non-availability of a Custom option. I was hoping that finally there was a CIEM that was everything the Traillii was (and with a bit of luck -- MORE!), and praying, at the same time, for the sake of my wallet, that it was not!
2. DAPs used were the 300 Max Ti (as I've heard about how power-hungry this 13-driver beast was) and the HM1000K (what I wanted to use the A100TB with). The difference between these 2 DAPs -- the 3MTi being a delta-sigma dual AKM4499 and HM1K being a R2R quad PCK-1704, should provide a good impression on synergy across the 2 main mass market DAC configurations.
3. I also brought along a couple of after market cables -- a copper-based (Orpheus shielding) and a silver-variant (Centurion), having heard how the stock cable was quite inadequate, to give the Jewel every chance to sparkle and shine, pardon the pun, just in case. That said, the Traillii was listened to on its stock 1960 cable throughout the audition.
Initial Impressions (Physical):
1. It is big. Both the shell and bore are considerably larger than the Traillii. I put on a MS SednaEarfitLight Short, the size I use on the Traillii and it was uncomfortable to wear right off the bat. Considering the custom will be larger than the universal, it posed an immediate concern for me.
2. It isn't as bling in real life. The blue glitter isn't so gaudy and, not sure if there is more than one variant, but the termination is a matte silver 2.5mm plug, not the gold one in some pics, that looked quite expectably run-of-the-mill.
3. Overall, it's quite typically Chifi-standard/quality, albeit premium, not unlike what you'd expect from Oriolus. In a way, it is quite appealing, to me at least, in an artisan sort of way, not the polished factory-line production unit from the big American/German brands.
Initial Impressions (Sound):
1. The stock cable sucks. Lean and bright, is all I can say. I do not remember Ledisi's Ne Me Quite Pas sounded as anorexic on anything I have heard before. I suspected the Orpheus would make it better and it was confirmed to be so immediately, adding more weight to the notes and taming the brightness noticeably.
2. Poor synergy with the 300 Max Ti. As much as the Orpheus improved the sound, I couldn't hear anything that measured up to the rave. The Jewel was rated highly for vocals and said to be resolving with oodles of details. Ledisi still did not impress and Grimaud/Sawhney's Vocalise (Rachmaninov), which was a notorious mangle of flute and piano, was as messed up as I have ever heard it to be.
3. The Jewel starts to glitter with the HM1000K. Could be the R2R, could be the quad PCM-1704, whatever it was, it was a notch or six up on the same tracks on the HM1K. More refined, more controlled, better all around. With the A100TB amping the HM1K, the Jewel (on Orpheus) -- all in an USD15K rig -- was now beginning to truly show its scintillating colors. Separation on the Grimaud/Sawhney's Vocalise was much improved, with greater micro details, emerging especially on trebles.
On Further Scrutiny:
1. Vocals were good... but only selectively so. Is it possible for an IEM to be racist and sexist too? Haha! How is that the J-pop, K-pop, Mando- and Canto-pop vocals (especially female) sound better than Jazz (Carmen Gomes) and Hip Hop (Sza)? Not that they sounded bad; Gomes on A Fool for You sounded lazy, Sza's Supermodel just didn't pop, compared to Utada Hikaru's First Love which was pumping, Zhou Shen's Big Fish was as ethereal as I've ever heard it. Next, Mi Mancherai (Il Postino) by Josh Groban, on the other hand, sounded as good as I can remember it to be.
2. Details lots yes... but only on the high frequencies. In a nutshell, I did not think the Jewel out-detailed the Traillii except at the higher frequencies. Though I must add, I was aware of the additional ESTs on the Jewel -- 6 versus 4 on the Traillii -- and was consciously listening out for the differences. I guess if I wasn't doing that, I'd probably wouldn't have noticed the difference. It was not night and day, wasn't even late morning and early afternoon!
3. The Mids on the Jewel are clearly more frontal than the Traillii; Highs are somewhat thinner and the Bass, both in terms of quantity and quality, not as slamming as the Traillii. On Timbre, I guess it's down to preference. The cello on Yo Yo Ma's Bach's Unaccompanied Cello Suite and guitar on Jacob Gurevitsh's If da Vinci was a Girl both sounded more natural to me. Not that the Traillii is my choice for orchestral music, but I'd pick it over the Jewel after listening to Holst Jupiter conducted by Karajan.
Summary:
1. If I didn't own the Traillii, they both cost the same and the Jewel was available in Custom and Traillii isn't, would I still pick the Bird? As important as customs are to the scheme of things to me, the short answer is... No. The long answer is (A) it's not that the Jewel is worse than the Traillii but I have a feeling it's just not tuned for the type of music I favor or sound I prefer. If female vocals J/K/Canto/Mando-pop is your poison and like the high Highs, you might choose the Gem over the Bird; (B) the Jewel is not as all-rounded as the all-rounder Traillii is -- it just loses too much ground on Classical music, some Jazz sub-genre, etc, to be the one-and-only IEM that the Traillii could well be; and (C) the Traillii universal is as comfortable as I have ever had the pleasure of wearing. Considering I have not come across any traditional UIEM, not the niche (FAD Pianofortes) or ear buds, that I could listen to for more than 30 mins, the Bird is unique, to my ears at least.
2. The A100TB was impressive. And with the PS100 (PSU I think?), it was OMG good. I have listened to the Cayin C9, the Phatlab Chimera (new version) and various other amps, and here is one (or pair) that I had no qualms buying on the spot. I for one have no clue but the open top allows some switching for signature changing or Op Amp rolling, if the user is into this sort of thing. If you are going to get the Jewel, I'd say at least get the A100TB too if not the PS100 too -- the synergy is obvious in the SQ improvements.
3. I guess most readers here are no noobs so I don't need to emphasize that this is a one person's experience, not to mention coming from an inexperienced gear reviewer -- no one should base their final purchasing decision on this! Go have a listen for yourself, if you can -- it's definitely worth it. I heard the 60+ launch units have already been spoken for so obviously there are many who had open their hearts (and massive wallets) to the Jewel. Interestingly, as I have mentioned before, Aroma Audio offers an upgrade from universal to custom at HDK3.5K (in case you are not sure about it and may wish to sell it) and the people behind the brand have also been very clear and vocal about their pricing policy of strictly no discounting for the first 4-5 years of the product life cycle so you could count on your investment holding its value for a long time.