Design Now


Design Now

With the 304 Boxster, Jomo Audio (JM) manifests their best implementation in the mid-range. Capable of pulling out extremities in details and musicality in the entirety of the mid-range frequencies, the 304 Boxster succeeded in creating a lush and organic mid-centric sound signature that is suitable for vocals and acoustics enthusiasts as well as stage monitoring for vocalists and instrumentalists.

Paired with modern-day Pop music as well as the golden classics, the 304 Boxster manifests its organic analogue signature extremely well.

Engineered with the newest BA drivers developed in 2021, the 304 Boxster features a brand new JM (Live) crossover system allowing for a perfect implementation in the midrange frequencies. Enjoy distinct and highly accurate mids, extended high with a full bass response with this monitor.

304 Boxster comes with free choice of the Signature JM ‘Soul Red’ shell chassis, formulated blend collaboration with automotive paint makers as well as a selection of Signature JM ‘Tessellation’ face-plate design that is laser-cut off a golden brass sheet or metallic JM logo.

8K 3D

Highly optimised and accurate recreation of your inner ear canal geometry with the latest digital production process. State of art end-to-end digital production procress starting with high precision 3D scanning, preserving the every minute detail of your ear impressions. Processed by professional CAD software system and finally printed with the latest 8K resolution 3D printer. Lastly polished and assembled by highly experienced Jomo craftsmen with premium finishings of your choice


CSU utilizes both electronics filtering design and acoustic path design to create a unique crossover system that help to eliminate unwanted frequency from the driver and smooth the frequency response. Producing wider frequency range as well as improving SPL at super high frequency thus creating a full-bodied engaging sound with a natural sound stage.
Jomo developed 3 new types of CSU, Studio, Live, Audiophile to be employed in different setups and configuration based on models.


Signature Jomo Audio CIEMs comes with a very special set of paint/color option. Partnered with a widely acclaimed automotive paint and finish manufacturer into formulating IEM suitable finishes and chassis design that is completely unique within the industry. The specially made paint and laquer helped to create the most vivid color with a tough, high glossy finish.


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- 1 low, 2 mids, 1 high
- 4 New Generation Balanced Armatures
- 3 ways Tripartite crossovers
- 3 Bores

Frequency Range: 20Hz ~ 20KHz
Impedance: 34 Ohms

What's in the box

  • Your custom in-ear monitors
  • Premium carry case
  • Soft mesh protection pouch
  • Silver Plate OFC Copper Stock Cable (3.5mm, 1.3M, L plug)
  • Balanced UP-OCC SPC upgrade cable (2.5mm or 4.4mm, 1.25M, straight plug)
  • Carbon fiber product ID card
  • Gold plated 1/4" adaptor
  • Brush with loop cleaner