Head Gear Reviews by A2029
  1. Heir Audio 4.Ai

    5.00 star(s)
    Beautifully designed IEMs. Great sounding (especially with instrumental/classical music). Very precise imaging. Very good instrument separation, but lacks large-scale soundstage - feels moreso like instruments are playing within a confined area outside/within your head - common to many IEMs (I may be too used to over the ear headphones...). Bass is not very strong, which is okay for a neutral IEM, BUT the bass is extremely "tight", fast, and punchy. Bass could use more extension into the low frequencies (i.e. little bass response for ~10-30Hz)...