- Drivers- There are two types of drivers for earphones, (i) Balanced Armature and (ii) Dynamic.
- Balanced Armature drivers => your earphone usually has more than one of these, since one set of frequencies for one driver is going to give you a limitted sound. Unfortunately, most earphones won’t have three drivers for all three sets of frequencies- high, mid and low. Most earphones, especially at this price range, typically only have two- the high and the low. This gives it extra bass, extra treble, with the mids really lacking. This phenomena is called a V-shaped sound, because graphing the range of frequencies gives you a v-shaped graph. This is the true plague for most earphones, the reason you get blunt bass and sharp piercing treble and almost no mids- a hollow sound, if you will. If done right, balanced armature drivers are actually clearer than dynamic drivers, but you would be paying close to a thousand dollars.
- Dynamic drivers- muddier than the former, and since the drivers are bigger to accommodate the larger range of frequencies, the earphones are bigger. They aren’t as clear as BA drivers, but are cheaper, more durable, and more suited for this price range. Of course there are other factors that affect the drivers’ sound, so do make sure to listen to your earphone before deciding whether to buy it.
- Open back vs isolation: This is more commonly used for headphones, but applies to a significant degree on IEMs too. Isolated IEMs are marketted as noise-cancelling earphones. I generally dislike this type of earphones, as the music lacks the ‘live’ feel that a less isolated earphone would offer. The tradeoff, obviously, is that surrounding noise bleeds into your earphones and vice versa. Again, this affects headphones more, so I would generally advise against noise-cancelling earphones. Again, this one is preference.
- Impedance- this just means resistance. You should remember the formula from secondary school physics. Anyway, 16-32 ohms is called low impedance, in that they don’t need so much power. That means these are suited for your plebian smartphones and what not. On the other hand, a high impedance earphone with about 100 ohms would need far more power, either in the form of an amplifier or a sound system with an audio jack. Using a high impedance earphone on your iPhone would result in a very soft sound, and your battery will be drained.
- Driver length- honestly just that. Generally a bigger driver can accommodate more sound, but too big and high frequencies are lost… and engineering can always change the process. Anyway the preferred measurements given by experts is 6.5mm for IEMs.
- Sensitivity- by right, a more sensitive earphone is supposed to play louder than a less sensitive earphone, but since manufacturers aren’t consistent with their measurements, this one is hard to pinpoint. I wouldn’t worry about this anyway.
- Sennheiser CX 3.00 (S$89): Very balanced sound, with tight punchy bass. Exactly what I was looking for, and though the sound is flat, I would have honestly settled for this if I hadn’t found better ones.
- Audio Technica ATH M50 (S$248): These are headphones. Shopkeeper gave me these by mistake when I requested for the IEMs below, but I was curious anyway. These are not worth the money, my Beyerdynamic cans at home sounded better and there were $50 cheaper. Don’t get me wrong, these are good headphones, just not worth the price.
- Audio Technica ATH IM50 (S$88): Slightly edged out by the CX3.00 above, quite a balanced sound but bass didn’t hit where it was supposed to. Felt like it was for generic music, didn’t offer much on sound. Classic v-shaped sound- highs and lows (to a lesser extent) are there, but no mids. Acoustic stuff sounded great, though.
- Audio Technica ATH IM70 (s$138): If the bass wasn’t strong enough on the IM50, the bass is too bloated on this one. It’s blunt and it’s like pummeling your ears with a hammer. I took it out immediately. Again, maybe this was meant for bass-light pop songs, but it sounded terrible with my songs.
- Marshall Mode (S$99): Wasn’t expecting much on this one but was pleasantly surprised. It’s not bassy, but has a huge soundstage and was very light on the ears despite the name. Have a feeling this would be heavenly for those who listen to classic rock, or 70s music in general. Again, not bad, maybe just too limited for my music styles.
- Fischer Tandem (S$98): Flat out terrible. Hollow, V-shaped sound. Took it off immediately.
- Fischer Audio Omega Twin (S$98): A far better version than the Tandem, again, v-shaped sound is unavoidable. I still wouldn’t buy these.
- Klipsch R6 ($139): Had the best fit among all the earphones I tried today. The bass is thick and suffocating, and not punchy at all. I could feel the low end on guitars, but the drums were buried, which I found very odd. Maybe stick to home theatre speakers for this one.
- RHA S600I (S$128): Great with highs, acoustic guitars. Pretty much mediocre on everything else.
- Mee Audio M6 Pro (S$79): These were so insignificant I didn’t even bother to ask myself why. Probably why it’s the cheapest here.
- JVC HA-FX3X (S$99): It’s hard to put a finger on it, but Japanese brands nail audio on IEMs. I expected this to sound subpar because it’s a cheaper model than my original JVCs- and it is. It isn’t clear and it focuses on the bass. However it compensates so well on the bass that it might as well be a separate entity; the bass is so tight and thunderous that it makes every other ‘bassy’ earphone sound like pussies. And this might be too much bass for normal listeners (and it’s definitely a no-no for audiophiles), but it hits the right spots on all my metal songs. The highs and mids aren’t badly compromised. I wear my IEMs for daily commute and in the gym (since I already have a headphone for clarity and soundstage at home). If I can’t find any other better IEMs at the IT Fair on Thursday, I am buying these for sure.
- Yamaha EPH-100
- Astrotec AM800
- Philips TX2
- HiFiMAN RE-400
- Philips Fidelio S1
- Sudio Vasa
- V-Sonic GR07
- V-Sonic GR07 (S$125 for classic, S$163 for bass): I can see why this is highly recommended. It’s absolutely bright and favours the highs- so acoustics and generally anything that’s ethereal/upbeat will sound magnificent on these. There’s also a ton of clarity- ghost notes from Death were clearly audible. However…. the bass is lacking. It’s there, it’s just not good enough. The bass versions compromise a bit of the clarity, and they aren’t as powerful as, say, the JVCs. Still, I wouldn’t write these off easily. In some ideal world where I am rich, I would have these in addition to other earphones. These sounded the best with acoustic stuff… stuff which I don’t listen to in commute. Another interesting thing about these earphones was that the soundstage is dictated by the song, so badly produced songs will not sound as good on these earphones. Very neutral.
- Astrotec AX-7 (S$144): Again on the bright side. They weren’t as clear as the V-Sonics, but the highs were more sparkly. Barely any bass, but the bassline is clearly audible on this one. Seperation between instruments very noticeable on this one, though.
- Fidue A65 (S$81): These were the first balanced IEMs I tried… and it was frankly quite disappointing. It’s neutral, but no character. Not enough bass on metal sounds, not enough highs on acoustics. Electronic music is fine.
- Fidue A71 (S$128): For an increase in price, I didn’t actually see any noticeable difference between this and the A65. At most, the bass is a little more pronounced, but it’s still balanced. Ha. So bad songs don’t sound as bad, but good songs don’t sound as good as they should be, either. Perhaps balanced earphones aren’t that great at this price range. Might work well with an amp, so those with that option might still want to try.
- Macaw GT100s (S$102): These were marketed as clear earphones with emphasis on highs, but there’s just enough low bass to differentiate it from the others. Again, not the best bass, but it combines tight reverb with a very wide soundstage. Very warm sounding. I would say this a tiny bit better version of the Marshall Mode. It’s an interesting sound… possible great for 70s rock songs that have acoustic sections but are still angry for some reason.
- Sun ME-1 (S$90): These were the last earphones I tried and I was quite tired by the end of the session, but these were pleasantly surprising. It’s V-shaped, which is expected for earphones of this range, but the emphasis was on the highs. Still, a warm sounding pair for those who cannot go above S$100.
- HiSound Audio Wooduo 2 (S$124): These and the AD01s gave me a lot of headache, because these were amazing. The bass is only second to the JVC FX3X, and it still packs a punch in the highs and mids. Very powerful and really bring all metal to life. The extended bass gives an illusion of a wide soundstage, and there’s still quite a bit of detail (I could hear the badly recorded snare of black metal songs). These might be too muddy for other genres, but I seriously considered these.
- Alpha & Delta AD01 (S$130 for normal, S$150 for upgraded cable): I made a mistake of listening to the upgraded version and the Wooduos before trying the normal version. The normal version is clear and has some rich, low bass, but it’s completely trumped by the upgraded cable version, which are, for now, the clear winner from this shop. It’s incredible layered, has clarity (though not as sparkly as the first few earphones here) and the bass is mostly in the lower region- meaning on the drums and bass guitars only. So in comparison, the highs still sound really good. Although it’s supposed to be v-shaped, these earphones really sounded on all three frequency ranges. It swallowed every song from every genre I threw at it- electronic, atmospheric, all kinds of metal, acoustic passages. The signature sound is rather consistent, the bass was deep yet subtle. It was incredible to hear any earphone handle both regions so well, and it had a fantastic fit. I actually said “Wow” to myself several times while listening to these, and kept switching between these and the Wooduos to really see which came out better. The problem with the Wooduos is their limited versatility- these go well with anything.
Decided to settle on Alpha & Delta AD01 today. Tried some other earpieces today:
Creative In-Ear Aurvana Live series: Sounded like shit, even though the OEM headphones were quite decent. No idea why, maybe they weren’t designed with lossless stuff in mind.
Sudio Vasa: Honestly, decent, but I thought the China models blew it out of the competition. This is one of the better Western models. Warm sound but too neutral.
Brainwavz: The S5s weren’t available for demos, so I tried Jive ($50 sports earphones), S1 and S3. The Jives were okay, but very mediocre. S1 and S3 didn’t seem to hit the bass. Did have the highs, though. Could be the terrible setting (loud and noisy in the Convention Centre), but I immediately knew these won’t work for me.
So, the AD01s, first flagship model by the shop LendMeUrEars. I know there are flaws (not strong highs, too much decay on bass) but these are excellent sounds for all my death and doom metal, and bring life to a lot of the old songs I own that have little bass. Sound is hollow for now, since these are going to need a heavy burn in for the dual titanium dynamic drives, but I am very very happy with this purchase.
I spoke to the owner and he told me that while this model was designed for ultra lows (which this model hits without having too fat a bass tone), the next model, the AD02, will be having a high-bias, clear sound signature, so look out for that if you’re into treble heavy music. Otherwise, these are the best earphone’s I have owned at this price range.
Hope all that I have posted has been useful for those with interest in buying new IEMs. look forward to buying better models when I start to work, and to replace my home OEMs in the near future.