PMG Audio Apx

PMG Audio Apx

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Flagship Tribrid - 1 Round Planar + 1 DD + 8BA + 1 Round Planar In-Ear Monitors

  • True 7-way passive crossover
  • Flat Impedance technology
  • Wooden box
  • Metal and EVA cases
  • Silver-Copper Alloy with Graphene core cable
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PMG Audio Apx

Vendor: PMG Audio

PMG Audio Apx


Vendor: PMG Audio

PMG Audio Apx


PMG Audio’s Apx (read Apex) is a culmination of all of our experience in designing, tuning and building In-Ear Monitors. It is our answer to the question of an ultimate product if there are no constraints or limitations in design or technology and price is no object.

Apx is not a simple product – it is a story – a story about luxury, uniqueness, exclusiveness, it’s a story about the sound and immersive experience that comes with listening, finally, it’s a story about the process, passion and legacy. Every single detail of this IEM has been thought through over and over again – made to perfectly capture a vision of a true flagship.

Experience the balanced yet engaging sound, see the real amber accompanied by perfectly fitting hand-painted housing, complemented by high quality materials – wood and metal

Flat Impedance Balanced Armature Earphone

Flat Impedance Balanced Armature Earphone (FIBAE™) patented technology is the world’s first, revolutionary, In-Ear Monitor design providing flat impedance and phase. By changing the Balanced Armature driver’s character from inductive to resistive we solved one of the oldest problems in the industry – dependence on output impedance of sound source for correct earphone output. With FIBAE™ technology your earphones will always perform best from any DAP. Single and multi-driver configurations available.

Geometrical Sound Outlet

GSO is a calculated parallel wall structure inside an otherwise round nozzle.

Geometrical Sound Outlet serves multiple functions – firstly as a support structure to increase the rigidity of the nozzle, secondly optimizes the dimensions of the nozzle and reduces the cross section size, finally it works as a horn structure increasing high frequency extension.

Pressure Optimizing Design

Pressure Optimizing Design is our in-house developed technology to reduce the pressure in front of the driver and influence its response by properly tuned acoustic filters.

Ultra Planar Speakers

We equipped Apx with an Ultra Planar Subwoofer delivering range only up to around 80Hz and an Ultra Planar Tweeter for range above 10kHz. Planar technology offers near limitless response on both ends of audible frequency range. Planar subwoofer supports Dynamic Driver in order to create the most natural bass attack and decay without unnatural bass boost to compensate. This woofer is strong enough to create perceivable vibrations enhancing listing experience. Planar Tweeter supports Balanced Armatures by adding extra air and extension, the choice of speaker and its application allowed to retain correct high frequency tone and speed.


Apx creates its own world and puts you in the center of it. Whether it’s a small studio, concert venue or philharmony, Apx can precisely render a playback environment and position instruments in the most precise way.

We put most of our attention to achieving correct tonality, level of engagement and emotions, creating a sound that is never boring and pulls you into its own universe.

Apx has been equipped with all custom-spec drivers, coupled with in-house developed technologies which place this IEM at the forefront of the audio reproduction.

Unique rectangular Planar Speaker in combination with 10mm PEEK diaphragm Dynamic Driver renders the most realistic bass response with perceivable vibrations without relying on overpressurizing of ear canal or bone conduction transducers. 8 custom-designed Balanced Armatures support lower-midrange, midrange, upper-midrange, and high frequencies. Topped with a small round planar speaker for natural-sounding, extended highs.

Apx can be described as effortless, bringing great tonal balance and clarity to music without any limit of stage capacity, delivering enveloping, textured and layered image.

Perfect combination of Apx and Omega 2-pin cable.

Silver-Copper Alloy with Graphene core Omega 2-pin cable complements perfectly Apx model. This cable comes with 2.5, 3.5, and 4.4mm connectors.

Real amber for Apx's faceplates.

Attention to details. Handpainted golden gradient on the shells.

technical specifications

11 drivers: 1x Rectangular Planar, 1x 10mm DD, 8xBA, 1x Round Planar (all drivers are custom-built to PMG Audio’s spec)


True 7-way passive crossover

5 Ohm ±1 Ohm
107dB @1kHz
Frequency Range
Silver-Copper Alloy with Graphene core cable, 2.5, 3.5, 4.4mm connectors, 0.1 Ohm resistance

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