The discovery thread!
Sep 27, 2021 at 7:24 PM Post #60,377 of 61,118

JEHL

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There are a number of “open” IEMs. The FiiO FD5 is pretty much open-backed, being the first one that came to mind.
Although the degree of openess seems kinda underwhelming compared to the Goldplanar GL20 or the Audeze iSine series. More like a vented design rather than open. But I'd love to audition the FD5 if I could.

That being said I've heard the GL20 in particular offers unmatched technical performance at its price bracket at the expense of EQ being a MUST. I'd like to think that this is mostly due to how open it is. But what do you all think. Do you think being 28mm planar driver played a bigger role, or the open back design of the housing?
 
Sep 27, 2021 at 8:16 PM Post #60,378 of 61,118

kmmbd

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I wish for open-back IEMs as an innovation. The last days I tested out an open-back earbud which sounded very good.
Open-back isn't really feasible for many IEMs as it doesn't really help with diaphragm back-pressure for dynamic drivers (and in BA drivers I don't think it's a feasible concept unless you're talking vented BA, even which mostly needs a small vent). The issue with earbuds is that most of them have poor bass response and the ones with good bass are still a far cry from the bass you get in IEMs (the ones with good bass, that is). Most of the bass reflex chambers in IEMs (or similar concepts) are of closed back variety (e.g. Sony IER-Z1R), though not all of them (e.g. Dunu's ACIS). In the end, there is also the part about market demand. People use IEMs to isolate themselves from the surrounding for the most part, very few would use IEMs that has zero isolation while commuting, for example. Demand dictates production.
Although the degree of openess seems kinda underwhelming compared to the Goldplanar GL20 or the Audeze iSine series. More like a vented design rather than open. But I'd love to audition the FD5 if I could.
FD5 doesn't really sound open to me. The Dunu Falcon Pro, for example, has a much more open signature due to more elaborate front-venting (and worse isolation, as a result).

IMG_1195.jpg


Speaking of Dunu, the OG Titan 1 is still one of the most open-sounding IEMs out there.

IMG_4798.JPG


Another IEM that was open-back before being open-back was cool: JVC FX700 (Woodie).

IMG_4895_cr.JPG


So yes, open-back IEMs are still in the proof-of-concept phase I think, and it will be a while (if ever) we see them being mainstream.
 
Sep 28, 2021 at 12:10 AM Post #60,383 of 61,118

Libertad

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Shozy's blackhole is about as open back as an iem can get and so is the blackhole mini
Shozy-Black-Hole-1.jpg

Not my image just one of the ol Google machine image search
 
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Sep 28, 2021 at 12:38 AM Post #60,384 of 61,118

FreeWheelinAudioLuv2

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Just couple words cause of language wall.
Like NX7 MK3 alot. Bass is the fastest i ever heard, pretty much detailed, not the deepest though. Oh10 much deepeer and punch is heavier, but slower. Mids are recessed. Can't tell I'm missing them, but it's a bit upset and you can feel it easily by comparing. Highs. They are just WOW, pearl of these iems. Crystal, lengthy. Acoustic/electro guitars, plates, piaono are fantastic! Soundstage stage is pretty ok for me, i was afraid it could be worse cause i was reeding here. Fitting is very good, they are very light.
Can't tell they are everyday iems, I'm getting tired of that agressive sound. But they are wonderful for fast and hard tracks.
YAY! Someone else who took the time to buy the NX7 mk III and not listen to the armchair audioholics. They are amazing for the price, are extremely technical, and yes, that dual CNT bass is just fast as lightning. Great for metal and hard rock.
 
Sep 28, 2021 at 2:04 AM Post #60,385 of 61,118

ZAXon 7

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YAY! Someone else who took the time to buy the NX7 mk III and not listen to the armchair audioholics. They are amazing for the price, are extremely technical, and yes, that dual CNT bass is just fast as lightning. Great for metal and hard rock.
how do NX7 MK3 compare to GK10?

edit. find your comparison in older posts, thanks!!!
 
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Sep 28, 2021 at 2:49 AM Post #60,386 of 61,118

mndless

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Just got shipped BGVP DH5 today and very confuced now cause of this impression:
Yay! Another person who watches Akros's videos!

The graph That BGVP posted in their listings for the DH5 scared me off. Way too much ripple in the upper mids and treble for me to want to sink the money into them. A real shame, since their build quality does look excellent and the price isn't outrageous for a 1+4. Given that he's usually pretty generous with his assessment of IEMs, for him to straight-out say that he doesn't like one, it must have really been a poor performer. I'm hoping they'll try again in that price range with a different selection of BA drivers, since their build quality does seem to be the real deal.
 
Sep 28, 2021 at 6:16 AM Post #60,387 of 61,118

MiMiranda

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Shozy's blackhole is about as open back as an iem can get and so is the blackhole mini

Not my image just one of the ol Google machine image search
yes, I love my Black Hole Mini in this aspect
 
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Sep 28, 2021 at 6:39 AM Post #60,389 of 61,118

MiMiranda

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