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FlexiPlug
Swap the earphone connector on one cable.

Ethos Ultra coaxial IEM cable with 3.5 mm plug, coiled on a dark studio backdrop

Ethos Ultra Coaxial Upgrade Cable for IEM | Headphone

$89.00 USD

Guides

Find a cable for your IEM

Search over 400 earphones to see which connector to choose.

Find my IEM

Support

Flat-rate repairs for cables and IEMs, even after the warranty ends.

Got a question? Start with our FAQ.

Compatibility guide

Cables for Campfire Audio

Most Campfire Audio IEMs, including the Andromeda (2016 to Emerald Sea), Solaris, Supermoon, Ara, Cascara, Fathom and the 2024–2025 line, use MMCX. Choose MMCX.

Quick facts

Connection

MMCX models

Campfire uses its own beryllium-copper MMCX sockets

ManufacturerCampfire Audio Astrolith
Andromeda 10

Campfire’s first IEM with 2-pin; recessed sockets

ManufacturerCampfire Audio Andromeda 10
Chimera

Standard 0.78 mm 2-pin, recessed sockets

ManufacturerCampfire Audio Chimera
Options to choose

MMCX or Standard 2-pin (0.78 mm)

Null AudioNull Audio

Models

Which option for each model

Each row shows the option to choose.

Chimera (2026)

Choose Standard 2-pin (0.78 mm). 2-pin 0.78 mm, recessed socket.

Manufacturercampfireaudio.com
Alien Brain (2025)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Andromeda 10 (2025)

Choose Standard 2-pin (0.78 mm). 2-pin, recessed socket.

Manufacturercampfireaudio.com
Grand Luna (2025)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Iris (2025)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Astrolith (2024)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Axion (2024)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Clara (2024)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Moon Rover (2024)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Trifecta (2024)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Andromeda Emerald Sea (2023)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Cascara (2023)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Fathom (2023)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Pathfinder (with Campfire Audio) (2023)

Choose MMCX. MMCX.

Retailer listinghifimarket.ee
Solaris Stellar Horizon (2022)

Choose MMCX. MMCX.

Published reviewhead-fi.org
Supermoon (2022)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Dorado 2020 (2020)

Choose MMCX. MMCX.

Manufacturercampfireaudio.com
Ara (2019)

Choose MMCX. MMCX.

Retailer listingaudioconcierge.co.uk

Ordering

How to order

  1. Pick a cable from the list below.
  2. Under Headphone connection, choose MMCX (or Standard 2-pin for Andromeda 10 and Chimera).
  3. Choose the player plug that matches the output you use most; see choosing the player plug.
  4. Not sure which socket your earphone has? Send us the model and a close photo of the socket before you order.

Before you order

Check your earphone

  • Andromeda 10 and Chimera are 2-pin; every other current Campfire model is MMCX. Check the model name on the box or case.

Cables

Cables you can order with this connector

Every cable in our range offers MMCX and standard 2-pin.

Lune Series MKVIII Premium Upgrade Cable for Headphone | IEM

Headphone connection: MMCX

 From $149.00 USD Tiburon MKIII UP-OCC Cryo Copper Headphone/IEM Cable

Headphone connection: MMCX

 From $199.00 USD Arete Series MKV Premium Upgrade Cable for Headphone | IEM

Headphone connection: MMCX

 From $109.00 USD Thera MKIII UP-OCC Cryo Silver Headphone/IEM Cable

Headphone connection: MMCX

 From $399.00 USD Brevity Pro 5N CGOCC-A Copper Earphone Cable

Headphone connection: MMCX

 From $49.00 USD Ethos Ultra Coaxial Upgrade Cable for IEM | Headphone

Headphone connection: MMCX

 From $89.00 USD Capri Balanced Digital Earphone Cable with Hi-Res DAC

Headphone connection: MMCX

 From $49.00 USD Hakone MKIII UP-OCC Cryo Silver/Copper Headphone/IEM Cable

Headphone connection: MMCX

 From $299.00 USD Aoraki MKIII Gold Silver Tri-Hybrid Headphone/IEM Cable

Headphone connection: MMCX

 From $699.00 USD Nyx+ BT5.3 Wireless In-Ear Monitor Cable

Headphone connection: MMCX

 From $89.00 USD Epsilon MKIII Premium Upgrade Cable for Headphone | IEM

Headphone connection: MMCX

 From $129.00 USD Istana Graphene Coated Copper Hybrid Headphone/IEM Cable

Headphone connection: MMCX

 From $1,099.00 USD

Install record

Our fit check

Keep reading

More guides

Find a cable for my IEM

Search 400+ earphones by brand or model.

 IEM connectors explained

2-pin, MMCX, IPX, A2DC and FlexiPlug.

 Choosing the player plug

3.5 mm, 2.5 mm, 4.4 mm, XLR and USB-C.

 Sennheiser IE 200 / IE 300 / IE 600 / IE 900

Choose IE300/600/900. Recessed MMCX socket.

 Sennheiser IE 40 PRO / IE 400 PRO / IE 500 PRO / IE 80

Each has its own option, not standard MMCX.

 Sony IER-Z1R / IER-M9 / IER-M7 / XBA

IER-Z1R: choose Sony IER-Z1R. IER-M7: MMCX.

 Etymotic ER4SR / ER4XR / ER4P / ER2

ER4SR/XR: keyed MMCX. Older ER4P/B/S: own option.

 Shure SE846 / SE535 / SE215 / AONIC

Standard MMCX.

 64 Audio

Universals: Flat 2-pin. Aspire: IPX. Customs: IPX or Flat 2-pin, matching your socket.

 JH Audio

4-pin: JH w Bass Control. 7-pin: JH 7-pin.

 Westone MACH / Pro X

T2 socket: choose IPX. Older W and UM Pro: MMCX.

 Ultimate Ears (UE)

Current customs and UE 150–350: IPX.

 Audio-Technica

Choose A2DC. IM series: plug on request.

 AAW (Advanced AcousticWerkes)

Choose Standard 2-pin. Nebula One: fixed cable.

Sources

Sources

  1. Campfire Audio — Andromeda 10 First Campfire 2-pin, recessed.
  2. Campfire Audio — Chimera Standard 0.78 mm 2-pin, recessed.
  3. Campfire Audio — Andromeda Emerald Sea MMCX.
  4. Null Audio configurator, Headphone connection Options offered on each cable. Snapshot 16 Oct 2026.

Prepared 17 Oct 2026. Not yet reviewed by Null Audio.

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