Periodic Audio Be (Beryllium) In Ear Headphones

Periodic Audio

The Be IEM has a 100% pure beryllium foil diaphragm with a bonded PEEK surround. All components inside our IEMs was 100% designed and tooled in-house, resulting a totally unique product.

  • The sonic signature of the Be IEM is quite neutral. Strong, even bass with a clear but balanced top end, the Be has vanishingly low THD and one of the best waterfall plots ever seen.

  • All our IEMs feature polycarbonate bodies for high strength and zero resonance, custom front-and-rear tuned volumes, MIM logo caps, butyl rubber strain reliefs, and N48H grade magnets.

  • Performance
    Frequency Response: 12 Hz to 45 kHz
    Impedance: 32 Ohms nominal
    Sensitivity: 100 dB SPL at 1mW in ear
    Power Handling: 200 mW continuous
    Peak SPL: 123 dB
    THD: Less that 1% THD at 1mW

    Material Properties
    Melting Point: 1560 Kelvin
    Speed of Sound: 12890 meters/second
    Young's Modulus: 287 Gigapascals
    Brinell Hardness: 1320 Megapascals

    Physical Properties
    Cable Length: 1.5 m
    Mass: 2.8 / 9.3 g (IEM/Set)
    Operational Temperature: -20 to +50° C
    Operational Humidity: 0-95% Relative Humidity
    NRR: 31.3 dB (foam eartip)
    Overall Length: 21 mm
    Body Diameter: 12 mm
    Nozzle Diameter: 6 mm