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Compatibility guide

Moondrop Chu 2 replacement and upgrade cables

Replacement and upgrade cables for the Moondrop Chu 2, handmade to order in Singapore from USD 49 and shipped worldwide with FedEx (free from USD 250).

The Moondrop Chu 2 (CHU II) has detachable 0.78 mm 2-pin sockets, so any of our cables fits it. Choose Standard 2-pin (0.78 mm) under Headphone connection, then the plug for your player: 3.5 mm, 4.4 mm balanced, or a USB-C cable with a built-in DAC for your phone. Every cable is handmade to order in Singapore and ships worldwide with FedEx.

Cables

Cables you can order with this connector

Every cable below offers standard 2-pin under Headphone connection.

Lune Series MKVIII Premium Upgrade Cable for Headphone | IEM

Headphone connection: Standard 2-pin (0.78 mm)

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

Headphone connection: Standard 2-pin (0.78 mm)

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

Headphone connection: Standard 2-pin (0.78 mm)

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

Headphone connection: Standard 2-pin (0.78 mm)

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

Headphone connection: Standard 2-pin (0.78 mm)

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

Headphone connection: Standard 2-pin (0.78 mm)

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

Headphone connection: Standard 2-pin (0.78 mm)

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

Headphone connection: Standard 2-pin (0.78 mm)

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

Headphone connection: Standard 2-pin (0.78 mm)

 From $699.00 USD Nyx2 Wireless IEM Cable · Qualcomm QCC5181

Headphone connection: Standard 2-pin (0.78 mm)

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

Headphone connection: Standard 2-pin (0.78 mm)

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

Headphone connection: Standard 2-pin (0.78 mm)

 From $1,099.00 USD Ethos MKVI Silver-Plated Copper IEM Cable

Headphone connection: Standard 2-pin (0.78 mm)

 From $89.00 USD

Quick facts

Connection

Null Audio standard 0.78 mm 2-pin IEM cable plug
Our Standard 2-pin (0.78 mm) plug, the option to choose for the Chu 2.
Earpiece socket

0.78 mm 2-pin, detachable

Manufacturermoondroplab.com: Moondrop CHU II
Option to choose

Standard 2-pin (0.78 mm). It fits recessed and flat 0.78 mm sockets.

Null AudioNull Audio

Models

Which option for each model

The option to choose for the Chu 2.

CHU II (2023)

Choose Standard 2-pin (0.78 mm). 2-pin 0.78 mm.

Manufacturermoondroplab.com

Ordering

How to order

  1. Pick a cable from the list below.
  2. Under Headphone connection, choose Standard 2-pin (0.78 mm).
  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

  • Match the marked side of the plug to the marked side of the socket. 2-pin polarity matters.

Questions

Common questions

Will a 4.4 mm balanced cable work with the Chu 2?

Yes. The plug only has to match your player. Choose 4.4 mm if your player or dongle has a 4.4 mm balanced output.

Can I use the Chu 2 with my phone?

Choose the USB-C DAC plug: the cable has its own DAC, so it plugs straight into a USB-C phone.

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.

 Shure SE215

Choose MMCX.

 Truthear Hexa

Choose Standard 2-pin.

 KZ ZS10 Pro, ZSN Pro X

Choose KZ C-pin 0.75 2PIN.

 Sennheiser HD 600 / HD 650

Choose Sennheiser HD600/650.

 Sennheiser HD 560S / HD 5x9

Choose Sennheiser HD 5x9.

 Sennheiser HD 800 / HD 800 S

Choose Sennheiser HD800.

 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. Older 2-pin and SL: UE/UM/QDC 2PIN Legacy.

 Campfire Audio

Most models: MMCX. Andromeda 10, Chimera: 2-pin.

 Audio-Technica

Choose A2DC. IM series: plug on request.

 AAW (Advanced AcousticWerkes)

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

 Moondrop

Choose Standard 2-pin. Original CHU: fixed cable.

 qdc, KZ and CCA

KZ, CCA: KZ C-pin 0.75 2PIN or KZ / 64 Audio 0.75 Flat 2PIN. qdc: UE/UM/QDC 2PIN Legacy.

 Truthear, Kiwi Ears, Simgot and more

Most: Standard 2-pin. Some: MMCX.

 Empire Ears

Choose Standard 2-pin.

 Vision Ears

Choose Standard 2-pin.

 Noble, UM, FiR, Softears, Symphonium, Elysian

Most: Standard 2-pin. Elysian: FlexiPlug.

 JOMO Audio

Choose Standard 2-pin.

 Dunu

Most: MMCX. Some: 2-pin.

 FiiO

Choose MMCX.

 final

Choose MMCX.

 beyerdynamic

DT PRO: Mini XLR 3PIN. T1, T5: Beyer T1/T5P.

 HIFIMAN

Most: Dual 3.5 mm. HE1000, early HE400i: Dual 2.5 mm.

 Audeze

Choose Mini XLR 4PIN.

 Focal

Most: Dual 3.5 mm. Utopia: Focal Utopia.

Sources

Sources

  1. moondroplab.com: Moondrop CHU II 0.78 mm 2-pin.
  2. 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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