Official Diaphragm Supplier for EVE Audio

Premium AMT Drivers
Direct From Source.

One of only three master factories in China. We supply studio-grade diaphragms and AMT high-frequency drivers to global top-tier audio brands.

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Trusted by
Industry Leaders

AMT ST139

Air Motion Transformers

Hover over images to view Frequency Response Curves.
* All SPL data measured in our professional 2π anechoic chamber.

AMT Series

Frequency Curve

AMT113S-0401

4.0 Ω
Spec Sample

Frequency Curve

AMT172S-0401

4.0 Ω
Spec Sample

Frequency Curve

AMT-ST139

8.0 Ω
Spec Sample

Frequency Curve

AMT040-0401

4.0 Ω
Spec Sample

Frequency Curve

AMT040-0402

4.0 Ω
Spec Sample

Frequency Curve

AMT040-0403

4.0 Ω
Spec Sample

Frequency Curve

AMT040-0404

4.0 Ω
Spec Sample

Frequency Curve

AMT065-0401

4.0 Ω
Spec Sample

Frequency Curve

AMT065-0402

4.0 Ω
Spec Sample

Frequency Curve

AMT065-0403

4.0 Ω
Spec Sample

High-End Diaphragms

Advanced diaphragm solutions for premium studio monitors.

Source Component

YA-DIAPH-40

4.0 Ω / 8.0 Ω Available

The ultra-lightweight diaphragm utilized in world-class studio monitors for unmatched transient accuracy.

Get B2B Quote

YA-DIAPH-65

4.0 Ω / 8.0 Ω Available

Extended surface area design for higher power handling and smoother low-end crossover.

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Acoustic Testing Environment Anechoic Chamber Research & Development
Company Profile & Heritage

True Technical
Mastery.

Yochi Audio is a professional manufacturer of high-performance acoustic components, specializing in Air Motion Transformer (AMT) drivers and premium diaphragm technology.

With over a decade of dedicated R&D, we have built a fully equipped acoustic laboratory, featuring industry-standard anechoic chambers and precision measurement tools. We don't just assemble parts; we hand-tune and rigorously test every single diaphragm.

As a family-owned legacy factory, we are proud to serve global top-tier studio monitor brands, offering them direct OEM/ODM capabilities to ensure 100% frequency consistency for their most demanding projects.

Top 3

R&D Rank in China

Source

No Middleman Markup

Partner with us

Request technical samples, OEM customization, or distributor pricing for your project.

WhatsApp / Phone

+86 18128026346

Email Inquiry

evan@yochiaudio.com

LinkedIn Profile

evan-yochi

Instagram

@yochiaudio

Headquarters Address

Yochi Audio Technology
16 Building, New Sun City Industrial Park,
Xingheyi Rd, Tangxia Town, Dongguan City,
Guangdong Province, China