M5-12D Universal

3D-printed In-ear Monitors
Ultimate expression of total neutrality with wide and expansive soundstage.
Regular price $1,299.99

Fitment Type


Driver / Sound

12-balanced armatures


3.5mm jack



Meticulously Handcrafted
ADV. M5-12D in-ear monitors are expertly handcrafted using only the bespoke and highest grade components.  Each unit goes through a specific set of procedure that includes 3D printing, hand-poured mould, grinding, laser-cutting, sanding and polishing.  This meticulous production procedure requires 4-6 weeks of lead-time from preparation of the material to the final assembly.  Once assembled, every M5-12D goes through a rigorous quality control process by the master technician, before finally getting approved and packaged. 

Proprietary Multi-Driver Technology
The M5-12D blends 12 individual balanced armatures in a perfect harmony with our proprietary active crossover.  Each armature is precision-tuned to reproduce the original record to the last drop of detail as artist intended, regardless of genres or production methods.  Not one region of frequency response has been left unchecked to ensure that no one region is accentuated over others. The resulting audio is an ultimate expression of total neutrality with wide and expansive soundstage.

Designed to Fit You
The M5-12D is crafted with medical-grade acrylic, which is one of the safest material to use for a wearable device that comes in contact with your skin.  Universal version of M5-12D is ergonomically designed after studying the shape of thousands of custom in-ear monitors.  We've taken a common denominator from all the different ear shape, and morphed them into the universal shape it is now.  Furthermore, the M5-12D is also offered in custom-fit, crafted to fit only your ear, should you decide to send us your ear impression.

Interchangeable 2-pin Silver-Plated Copper Cable
Included premium quad-braided silver-plated copper cable with a 3.5mm gold-plated plug uses 2-pin (0.78mm) termination that allows the cable and the monitors to be easily detachable. 



Driver unit 12 BA with active crossover
Impedance 9ohm+/-15%
Sensitivity 109dB+/-3dB at 1kHz
Frequency response Ultra Wideband 10Hz – 40kHz
THD <0.2% at 1kHz
Input power 5mW
Cable composition Silver-plated copper
Cable length (SPC) 1.5M
IEM connector 2-pin (0.78mm)
Plug 3.5mm gold plated


What's Included

  • 1 pair of M5-12D IEM
  • 1 2-pin silver-plated copper quad-braided cable
  • 3 pairs of black foam tips
  • 3 pairs of black single-flange silicone tips
  • 3 pairs of black dual-flange silicone tips
  • 1 CNC-machined aluminum carrying case
  • 1 leather cable tie
  • 1 microfiber cleaning cloth
  • 1 cleaning brush



M5 Series M5-12D M5-6D M5-1D M5 Custom
Driver Config 12 BA 4 BA + 2 EST Single Dynamic Custom
Sound Signature Neutral Bass Balanced Custom
Available Color Custom
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Frequency Response

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