We all know that good sound requires a good source and good headphones, in this thread, I’ll attempt to guide you through to brands known internationally and in particular their products that provide best “bang for buck”. Dont get worried if you don’t understand some technical jargon I’ve used (I’ll try to keep it at a bare minimum, I promise ^^ ), you can refer to this excellent guide to gain an understanding of concepts you do not understand. (it's a dictionary for audiophiles XD):
Stereophile: Sounds Like? An Audio Glossary
==Earbuds (open intra-aural)==
Earbuds are your common type of earphones, the one that you can just place into your ear on the go. To describe it best, some examples of earbuds are, the apple ibud (which you all will have no doubt seen everyday of your life) and the Audio Technica CM7 (a rarer model).
Earbuds have a particular advantage of being very portable, meaning it takes very little time to put them in your ears and are great on the go. The main disadvantage, may not affect everyone, but there can be fit issues with earbuds. If your ear’s are just shaped differently, earbuds may not rest in your ears properly causing them to fall out. You can possibly fix this with the use of foam covers, but a proper fit is not guaranteed. In addition, earbuds, provide next to no isolation, meaning you will more than likely have the need to turn up the volume on public transport or other noisy transport means.
Sennheiser MX400/500 ($20-40AUD)

These guys are probably going to be the best knockaround pair anyone can get. For the price, they provide decent amounts of bass, a nice relaxed midrange and some sparkly treble. They have a relatively small diameter which means they can fit in your ears easily. The difference between the MX400 and 500 is that the MX500 has an inline volume attenuator. The attenuator apparently adds some resistance to the earphones and improves the bass, although the difference in bass is slight
AKG Accoustics K14P ($40AUD)

AKG Accoustics, have been around for many years priding themselves on their excellent quality products that focus on detail and accuracy. The K14P in particular is an interesting product which provides smooth yet detailed treble and a nice lush midrange. In terms of detail it doesn’t lose out to the Sony MDR-E888, however some may find the bass of the K14P lacking. Not for the basshead, but good for people who like detail and accuracy. (Or genres such as orchestral or classic etc)
The K14P also has an inline volume attenuator.
Sony MDR-E888 ($60AUD)

One of the more “popular” brands out there. E888 is in my opinion the best earbud for the price. The E888 gives quite a bit of bass (for an earbud) with the bass being clean and detailed. The midrange is very warm and the treble is nicely controlled and crisp. These earbuds are very enjoyable and produce very nice sound quality for an earbud.
The only downside is that they are a bit fragile, and if you do not take care of them, you’ll find yourself grabbing another pair.
Cresyn LMX-E700/Audio Technica ATH-CM5 ($70-80AUD)

This is probably a rare model that you wont find for sale anymore, but a few stores in Korea and Japan stock these. Aesthetically they look good and the sound is decent. Comparing this to the MDR-E888, the it has less of a bass presence , but the midrange is upfront, meaning vocals in particular are accentuated. Its a fun sounding earbud, although for the price its not as good as the MDR-E888.
However, these things are made with aluminium and feature a high quality cable, so if durability worries you, E700 > E888.
Audio Technica ATH-CM7SV ($100 AUD)

Depending where you look, you may be able to find these for 100 dollars though usually they are a bit more. Audio Technica earbuds means one thing. Detail. And plenty of it. While the bass on these may seem thin, the bass presence is greatly improved with the use of foam covers. With the foam covers the bass quantity is increased so is the low end attack (punchy bass). The midrange is also upfront, which accentuates vocals. Treble.. is well.. excellent, fast, transient, accurate and detailed.
The more interesting feature of these earbuds apart from their sexy look is that as an earbud the “airyness” of the audio it produces is great. “Airyness” is that open special feeling you get with headphones and these earbuds manage to emulate that feeling quite well.
Pricy, but sexy and produces good sound quality, these are the words to describe it.
YUIN PK2 ($100AUD)

These are much raved about at Head-Fi. YUIN is a relatively new (???) Chinese company much like Meizu that produce quality earbuds. The YUIN PK1 apparently holds the title at head-fi being the best earbud in the world. The PK2 is its little brother and features a lower impedence (and a lower price) so that portable audio players can drive them easily. The PK2 has tight and strong bass, lush midrange and accurate treble.
Definately food for thought if you’re willing to pay for it, aesthetically it doesn’t look good, but those after sound quality shouldn’t worry too much about looks.
==Canalphones (closed in-ear)==
Canalphones are similar to earbuds but have a protrusion that sticks into your ears to provide isolation against ambient noise. The noise isolation is effective in noisy areas and the advantage is that you do not need to pump the music up so loud and damage your ears. Although there is no scientifically proven result that canalphones and IEMs damage your ears faster than earbuds, In my opinion, canalphones and IEMs can save your hearing provided you use them responsibly.
Crossroads MylarOne X3 ($60 AUD)

These are a new offering from Crossroads, a Korean manufacturer. The Mylar3 has interesting properties being a warm sounding canalphone with detail and decent levels of bass. For the price its excellent value and imo it can compete with the Shure E2c and Super.fi.3.
The only downside to these is that aesthetically it looks cheap, the cables are also thin. Treble also has a rolloff. Otherwise its a solid offering from Crossroads.
Sony N.U.D.E. MDR-EX90 ($95AUD)

This canalphone is a relatively new offering from sony and is seen by many as a canalphone version of the Sony MDR-E888. However, isolation of the EX90 is poor but the sound quality is similar to the MDR-E888. Consider the EX90 with a pinch of salt.
Audio Technica ATH-CK7 ($100AUD)

The CK7 is a canalphone which is in my opinion excellent value for money. Excellent treble resolution and bass response with nice detail, for 100 dollars these cannot be trifled with. An interesting feature of the bass is that it is present where needed. For example, a bass guitar playing a low note, would trigger quite a bit of bass from the CK7. This is what I would like to call accuracy. Bass comes where its supposed to and it does not add bass to elements of music that shouldn’t have bass.
The CK7’s sound signature is slightly cold, and analytical, but thats a typical offering from Audio Technica. Expect lots of detail and treble resolution from these.
Vsonic VS-R02PRO ($90AUD)

Comment Coming Soon!
Head-Direct RE2 ($100AUD)

Comment Coming Soon!