SHIPPED FROM NETHERLANDS

In stock, shipped next day, fast delivery in EU

ALL TAXES INCLUDED

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Our take

 

A MEMS tweeter is a silicon chip that moves air directly, with no coil and no film. It is fast, and here it is the whole story: the top end is bright, airy, and extended further than anything else we stock near this price.

Be clear about the tradeoff before you buy. This is a lean, energetic set, not a warm one. Bass is tight rather than physical, and if bright treble tires your ears, pick something else.

Build: Stabilised natural wood set in clear resin with red pigment; every faceplate is different. Fixed 4.4 mm cable, 0.78 mm 2-pin.

Comfort: Ergonomic shell with a pressure-balance vent; easy for full evenings.

The specs:
Drivers: 6 drivers: 10 mm dynamic + 6 mm passive radiator + 3BA + 1 Direct Drive MEMS
Impedance: 13 Ω @ 1 kHz
Sensitivity: 122 dB/Vrms @ 1 kHz

Close-up of Binary Acoustics MEMS in-ear monitors with a mosaic iridescent finish on the ear tips and a clear cable, resting on a dark textured surface with the Binary Acoustics logo visible.

What we hear

Every line is a tuning decision, not a score.

Sub-bass Natural on a scale from Lean to Visceral
Mid-bass Natural on a scale from Lean to Slamming
Vocals Natural on a scale from Distant to Lively
Treble Sparkling on a scale from Dark to Sparkling
Details Revealing on a scale from Forgiving to Surgical
Soundstage Wide on a scale from Intimate to Holographic
Binary EP321 MEMS box

What's in the box

  • 1.2 m cable 4.4 mm termination
  • Silicone ear tips
  • Leather Carrying case
  • Cleaning brush