oBravo is dedicated to its core value of professional excellence, design, innovation, high quality, attitude and change. OBravo is also known for their extensive research development on the application of the mylar ribbon and air motion transformer. I have never listened to a more expensive inear myself and of course I get asked all the time if they’re worth the money but that’s only something you can decide yourself, I just know they look great and sound very unique and to me good.
Frequency Response: 20Hz~45KHz
Tweeter: 8mm Air Motion Transformer Tweeter
Dynamic Driver: 13mm Neodymium Driver
Impedance: 16 ohm
Sensibility in dB: 105dB
Weight: 35 g
“From studio recordings to live performances, the AMT and NDD produce a full spectrum of audio. Every nuance is captured and heard. Every note is felt.”
oBravo’s goal with the EAMT-1A is to deliver a rich sound stage comparable to full sized headphones and with the Air Motion Transformer Tweeter(AMT) and Neodymium Dynamic Drivers (NDD), it according to oBravo, should in theory deliver the finest treble performance of any earphones in its class. All my impressions were done with the Comply T-500 foam tips. I remember I was really impressed with the EAMT-1A the first time I put them in my ears and pushed play. All these weeks later, I still am just as impressed, the sound simply is at goosebumps level. Key words for the EAMT-1A: clarity, spaciousness, speed, richness.
From bass to treble the EAMT-1A is fast (great attack) and very detailed. The sound stage is wide and deep with great layering and excellent separation. Sound is spacious yet natural and the EAMT-1A does it effortless without any hesitation or hiccup. The resolution and richness in bass, mids and treble is impressive. Oh my, the EAMT-1A just sounds incredibly good. The EAMT-1A doesn’t sound like you’re listening to inears, it sounds like a reference, full sized, over ear, open design TOTL headphone. I’ll go even further and say it sounds close to a good speaker setup, it’s that impressive.
The EAMT-1A sounds natural and it drops you right in the music with excellent left/right separation and a very good 3-dimensional presence. The EAMT-1A like I said is detailed, fast and precise but it never misses the musicality and naturalness, it doesn’t sound forced or analytical in any way.
The bass body is good, meaning it’s not too light or too heavy. Bass is tight and fast with great layering. It reaches down low but not extremely low either but in exchange you get a very rich sounding bass with great definition and layering. The mids body-wise connect perfectly to the bass and they, if even possible, have even more musicality and richness than the bass has. The mids have excellent resolution, are spacious and go deep. Separation couldn’t be better. Bass and mids have a well-balanced presentation where the natural sounding vocals are a little upfront. Voices are very natural and are very rich and accurate, the EAMT-1A does it all.
The treble section is where the oBravo EAMT-1A should shine even more with its AMT technology tweeter and it does just that. Treble is extended, detailed, layered, precise and fast and again the EAMT-1A does it without hesitation. Treble is musical and very energetic, yet never harsh, sharp or too edgy. It’s wonderful, I love it and I think the vast majority of listeners will too. Except for maybe those who crave soft and rolled-off treble.
All in all the EAMT-1A delivers an impressive and addictive, spacious rich sound. There’s hardly anything to complain about.
Amplification & Sources
I mostly like the Chord Hugo for its wide sound stage, good layering and smooth delivery and it does just that with the oBravo EAMT-1A. I can use this combination all day long at the office, the synergy is excellent. From its little brother the Mojo, the oBravo sounds a little less wide, spacious and deep but it’s still very musical, detailed and clear with a good amount of air.
From ALO continental V5 the 1A is dead silent and it sounds very natural. Treble is a little softer because of the tube impact and while it might not be as tight and fast as on a solid state amp, I really love this smooth natural sound. I still prefer the Hugo overall though. From the Bakoon International HPA-01M the oBravo sounds best on the voltage output. I find the current output to make it sound overly spacious and airy with the voices more in the back. On the voltage output it delivers the tight, fast and precise sound described above but it’s a little smoother and slower.
The RHA DacAmp L1 allows you to dial up the bass and treble but I didn’t find that to have a good effect on the 1A, it sounds best how it was tuned. The L1 has more than enough power and gives it great bass boy, rich mids and a very powerful sound overall. I quite like the DacAmp L1 so far.
The oBravo EAMT-1A doesn’t need an amplifier to sound great and straight out of the AK380 you get a very clean and detailed sound where the voices are a little bit sharper sounding (I’m not saying they’re sharp at all but they’re sharper than on say the Hugo). Bass and mids have great body and are deep and rich. Good sound, but quite an expensive combination. The Cayin i5 which we reviewed last week gives the 1A good body in bass and mids but it’s a little less detailed, spacious and deep compared to the other sources and amps. On Hifiman’s latest Supermini – yes, it’s back to basics – the 1A sounds good but not as spectacular as on the AK380 and it’s missing clarity, speed and a little bit of energy. You do get a warmer, smoother and slower sound so if that’s your thing, you know where to go. From the Luxury & Precision L3Pro you get a slightly bigger and looser bass but good width and depth with overall. The sound is very rich with the right amount of air. The L&P DAPs are known for their exceptional sound quality and this is no different with the L3PRO. Too bad we can’t try the balanced output. L&P still needs to work on the UI urgently though.
The oBravo EAMT-1A Headphone Inear is a unique sounding universal inear that Wowed me from the start and believe me, after 7 years of doing personal audio reviews, that isn’t something that’s easy to do. The EAMT-1A isn’t cheap, but what $400 is for some is $4000 for another. All I can say is that this simply is the best sounding universal inear monitor that ever was in the HFN headquarters. It does leak sound out and noise in, so this isn’t the kind of IEM to use on the way to work (if you want to carry around an IEM of that price class on the train that is).
The EAMT-1A headphone Inear is fairly easy to drive and I can’t say it sounded bad out of any of the sources and amps I tried it with. My personal favorites are the Hugo and the ALO Continental V5 but I wouldn’t worry too much about getting the sound right as it will always sound good. From what I hear obravo is already working on a new flagship but I do wonder how it could get even better.