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Heir Audio 5.A 5-Driver Custom In-Ear Monitor

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Heir Audio 5.A 5-Driver Custom In-Ear Monitor

  • 5 Precision Tuned Balanced Armature Drivers

  • Three Way Passive Cross Over Design

  • One Dedicated driver for Low Frequency production

  • Two drivers for Middle Frequency production

  • Two drivers for High Frequency production

  • Dual Bore design

  • AVX OxiCap Capacitors

  • Vishay Resistors

  • Hypoallergenic, Hard Acrylic Shells

  • Detachable cable

Universal demo unit available for auditioning at our Tai Seng office!

*Heir Audio strongly advises customers to take Ear Impressions with a qualified Audiologist.


The 5.A is the customized version of our well known 5-driver universal monitors IEM 5.0.They share the same sound signature, which can be described as impactful lows, mellow middles, and non-fatiguing highs. It is a warm, fun sound signature, excelling in many music genres.

Standard CIEM features

  • All faceplates will match the shell colour (additional fees apply for different shell and faceplate colours)
  • All faceplates carry the company Logo (Optional)
  • All standard cables are black
  • Non-recessed sockets
  • All colours are transparent

Additional features with every 5.A purchased

  • Carbon Fibre Faceplate (optional)

NOTE: Logo colour selection and placement location is at the discretion of Heir Audio. The free Heir Audio logo option is not recommended for wood and carbon fibre faceplates, as we believe it detracts from the beauty of the CIEMs.

Click to read more Useful Information and check out the available Colour & Artwork options!

Technical Specifications

Additional Information

Colour Customisable
Warranty 1 year (local)
Product Weight (g) 299
Country of Manufacture China
Availability Discontinued
Product Type Earphone
Style/Type Custom In-Ear (CIEM)
Driver Configuration 5-Drivers (Balanced Armature)
Headphone Design Closed-Back
Cable Style Detachable (2-pin Westone/CIEM)
Input Connectivity 3.5mm stereo
User Reviews