FIBAE 4 utilizes the world’s first, patent pending Flat Impedance design. Featuring unique combination of 4 Top-Firing Balanced Armature Drivers – Single Low, Single Full-range, Single proprietary High and Single proprietary Super High. FIBAE 4 delivers powerful, mainstream sound signature with one-of-a-kind soundstage presentation and micro details.

Thanks to our revolutionary Flat Impedance technology, FIBAE 4 will retain its sound signature with all audio players, sound cards, amplifiers or just a smartphone. Read more

  • Single low, Single full-range, single proprietary high, single proprietary super high
  • 115dB @1kHz @0.1V
  • Low % THD
  • 8.1 Ohm @1kHz (+-0.95 Ohm 10Hz-20kHz)
  • 10Hz-21000Hz (+-20dB into IEC 60318-4 coupler)
  • Custom or Universal fit

FIBAE 4 comes as natural continuation of Custom Art’s lineup, merging qualities of FIBAE 2 and 3 into unique sounding IEM. Top Firing Drivers provide improved frequency extension compared to traditional Balanced Armature drivers with a spout resulting in immensely detailed sound.

We tuned FIBAE 4 to be fun sounding IEM with warm and smooth signature. It offers excellent sub-bass depth and punch, detailed and natural midrange finished with extremely detailed, but never harsh highs. It combines big headroom, high resolution and expansive sound stage. FIBAE 4 is a perfect tool for guitarists, bassists and drummers for stage monitoring.

Order your FIBAE 4 here

Non-customizable, ready-to-ship version is available here.

Price: starting from 750 EUR (unavailable since Oct 24th 2022)