From what I've come to believe, iems have greater potential for audio quality due to reasons that have been stated above. By quality I mean an extended, even frequency response, low distortion and resonances and controlled bass. Thus, the disparity generally widens as the price increases as well (I repeat, generally
). I have heard crappy iems and earbuds at various price points; if they are bad, they're bad. That cannot be helped. However, there are some dirt-cheap earbuds which still sound really agreeable, that is a fun and engaging sound, albeit inaccurate and with artefacts. They do have pluses as well- being open sounding at the expense of isolation, and imaging tends to be at least acceptable for the price. Their sound can easily be altered with the thickness and type of covering foam used- the effect is usually more drastic than that encountered in tip rolling in iems. Some of those with plastic builds have the additional interesting effect of vibrating at higher volumes when bass is being played, which affects the perceived bass response. Furthermore, cheap earbuds appeal to those who like an old school vibe and others who experience stress about their daily drivers being stolen or damaged. For myself, I enjoy the cleaner and more accurate sounding iems (and headphones), but have an uber-budget beater earbud to rock out from time to time
Positives of earbuds:
- Available crazy cheap (few iems are comparable at the pricing of the cheapest)
- Fun, carefree, forgiving nature of sound
- Open sound
- Easily configured (foam covers to reduce treble and increase bass and vice versa)
- Old school vibes
Potentially positive or negative:
- Some housings experience vibration
- Different form factor and fit
- Isolation=Absolute Zero (jk: not really, but close enough
)
Negatives:
- Not for accurate sound
- Thus also not for "highest quality" sound