Datasheet
4-Strand IEM Replacement Cable — MMCX / 0.78 mm 2-Pin
Lightweight 4-strand replacement cable for in-ear monitors, with MMCX or 0.78 mm 2-Pin connectors and a 3.5 mm or 4.4 mm plug.
- Low MOQ
- Stock samples available
- We reply within 1 business day
Why no price list?
Pricing depends on the cable specification, customization and quantity, so every quote is prepared for your project.
Key specifications
- Length
- 1.2 m (4 ft)
- Conductor Material
- Oxygen-Free Copper (OFC)
- Connector A Contact Plating
- Gold
- Connector B Contact Plating
- Gold
- Connector B Type
- 3.5 mm TRS, 4.4 mm TRRRS
- Braid Count
- 4
What it is
A 4-strand braided cable for in-ear monitors, made as a replacement for a damaged or lost stock cable or as an entry-level upgrade. It has MMCX or 0.78 mm 2-Pin connectors with pre-formed ear hooks at the earphone end, and a 3.5 mm single-ended or 4.4 mm balanced plug at the player end. The four-strand braid keeps it thin, light and comfortable to wear, in black or clear insulation.
It completes the price ladder under our 8-strand and modular IEM cables, so an earphone brand can offer a replacement, an upgrade and a flagship cable from one source.
Who it's for
- Earphone brands that need replacement cables for after-sales service.
- Hi-Fi e-commerce stores building an entry-level cable line.
- Retailers that sell IEM cables at accessible price points.
Build & specs (standard build)
- Braid: 4 strands, one each for L+, L−, R+ and R−
- Conductor: oxygen-free copper (OFC), 26 AWG per strand
- Insulation: PVC, black or clear
- Earphone end: MMCX or 0.78 mm 2-Pin (flush), with left and right marking; heat-shrink ear hooks
- Source plug: 3.5 mm TRS or 4.4 mm 5-pole balanced, aluminum-alloy housing, gold-plated brass contacts; the 4.4 mm sleeve (ground) is not connected
- Hardware: aluminum-alloy Y-splitter and chin slider
- No inline microphone
- Length: 1.2 m (3.9 ft) ±2 cm
- Packaging: header-card bag
Customization options
- Your logo on the plug housing
- Insulation colors; silver-plated copper on request, confirmed in writing at order
- Lengths from 0.8 m to 3 m; 2.5 mm or L-shaped source plugs; recessed or extended-housing 2-Pin connectors
- Header card, retail box and barcode labels
- Contacts are gold-plated as standard; nickel-plated contacts are available as a customization.
Ordering notes
- Low MOQ. You can combine connector and plug versions in one order to reach the minimum, with a smaller minimum per design.
- Samples of stock designs are available before you order.
- Lead time depends on the customization and is confirmed in your quote.
- Specified by Haisen (Hong Kong). Manufactured in Guangdong, China by our manufacturing partners.
Specifications
General
| Model No. | HA-HPC-03 |
|---|---|
| Supply Form | Finished cable |
| Signal Type | Headphone |
| Application | Portable audio, IEM monitoring |
| Length | 1.2 m (4 ft) |
| Length Tolerance | ±2 cm |
| Length Measurement | Tip to tip |
| Country of Origin | China (Guangdong) |
Conductor & Construction
| Conductor Material | Oxygen-Free Copper (OFC) |
|---|---|
| Insulation Material | PVC |
Connectors
| Termination | Soldered |
|---|---|
| Connector A | |
| Housing Material | Aluminum alloy |
| Contact Plating | Gold |
| Contact Base Metal | Brass |
| Connector B | |
| Contact Plating | Gold |
| Type | 3.5 mm TRS, 4.4 mm TRRRS |
Details
| Braid Count | 4 |
|---|---|
| Gauge per Leg | 26 AWG |
| 2-Pin Type | Flush |
| Pin Assignment | 4 strands = L+, L−, R+, R−. 3.5 mm: Tip L+, Ring R+, Sleeve L− and R− joined; 4.4 mm: Tip L+, Ring 1 L−, Ring 2 R+, Ring 3 R−, Sleeve (GND) not connected |
| Ear Hook | Pre-formed heat-shrink |
| Y-Splitter Material | Aluminum alloy |
| Chin Slider | Yes |
| Inline Mic/Remote | No |
| Headphone Connector | MMCX, 0.78 mm 2-Pin |
Packaging
| Packaging Type | Polybag with header card |
|---|
Specifications shown are our standard build for this product. Most items can be customized, and your quote confirms the final specification for your order.
Last reviewed
Customize this cable
Choose what you want to make your own — we confirm feasibility, MOQ and lead time in your quote.
Downloads
- Download
FAQ
Does this cable have a microphone or remote?
No. This version has no inline microphone. A version with an inline mic for phones can be quoted as a separate design; it uses a 4-pole TRRS plug wired to the CTIA layout used by most current phones.
How is this different from the 8-strand braided IEM cable?
It uses four braided strands instead of eight, so it is thinner, lighter and more cost-effective. It suits replacement cables and entry-level upgrades, while the 8-strand cable is the mid-range upgrade.
Who buys this
Guides
- IEM & Headphone
MMCX vs 0.78 mm 2-Pin: IEM Connector Guide for Cable Makers
MMCX and 0.78 mm 2-Pin are the two widely used detachable connectors on in-ear monitors (IEMs). MMCX is a small snap-on coaxial connector that lets the cable rotate.
- Guides for Brands
OEM vs ODM vs Private Label Audio Cables: What Each Means
In audio cable sourcing, OEM means the cable is built to your specification or drawing, ODM means you adapt a supplier's existing design, and private label means an existing product is sold under…
- Guides for Brands
How to Source Custom Audio Cables from China: A Step-by-Step Guide for Brands
Sourcing custom audio cables from China means defining your cable in a written spec, choosing a supplier type, comparing quotes on equal terms, approving a golden sample, agreeing trade and payment…
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