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Designed for Purchasing Managers, Technical Directors & Operations Leaders who demand reliable power, low distortion, and on‑time supply for high‑end audio equipment.
Get Free Quote in 24 hMany suppliers charge a premium for “low‑noise” transformers but deliver units with inconsistent magnetic cores, leading to 30‑40% higher warranty claims on average.
Standard EI‑type transformers introduce up to 0.8 % THD, which is audible in high‑fidelity systems. Your customers notice the difference, and your brand reputation suffers.
Typical production cycles exceed 45 days, and customs delays add another 2‑3 weeks. For fast‑moving audio OEM lines, this creates bottlenecks and missed market windows.
| Parameter | Typical Value | Custom Range |
|---|---|---|
| Core Material | Ferrite (3C90) | Ferrite / Silicon Steel |
| Power Rating | 200 W – 1 kW | 100 W – 5 kW |
| Voltage (Primary) | 120 V / 230 V AC | 85 V – 480 V AC |
| Secondary Voltage | 12 V / 24 V DC | 5 V – 48 V DC |
| Operating Temperature | ‑40 °C to +85 °C | ‑55 °C to +105 °C |
| Dimensions (Ø×H) | 120 mm × 80 mm | 80 mm – 200 mm |
Case 1 – High‑End Home Audio (USA): Replaced a 500 W EI‑type unit with our 800 W toroidal design, cutting harmonic distortion from 0.7 % to 0.03 % and reducing chassis weight by 35 %.
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Case 2 – Professional PA Systems (Europe): Delivered 2,000 units in 10 days, enabling the OEM to meet a sudden festival‑season surge without extra inventory.
Case 3 – Medical Audio Monitoring (Canada): Customized a low‑EMI toroidal transformer that passed stringent IEC 60601‑1 tests, ensuring patient safety.
Standard stock is shipped within 7 business days. Custom winding adds 3‑5 days, plus 1‑2 days for inspection and packaging.
Yes. Our 10 R&D engineers work with you from schematic to prototype. We support OEM, ODM, and even private‑label branding.
We accept T/T 30 % deposit, 70 % balance before shipment, or L/C at sight. For long‑term partners, Net 30 or Net 60 terms are negotiable.
Our toroidal cores use high‑purity ferrite, precision winding tension, and a four‑layer shielding technique that reduces EMI by up to 85 %.
Yes. We can handle customs clearance, duties, and taxes, delivering the product directly to your warehouse.
We provide a 12‑month warranty, free technical consultation, and a dedicated after‑sales hotline (24 h response).
Limited Offer: First 20 inquiries receive a complimentary 5 W prototype shipped within 48 hours.
John M., Procurement Manager – SoundTech USA
“The 800 W toroidal transformer reduced our THD from 0.6 % to 0.02 % and cut the chassis weight by 30 %. Delivery was exactly on schedule – a rare win for a Chinese supplier.”
Emily L., Technical Director – AudioMax Europe
“Xinchangda’s OEM service let us integrate a custom 12 V/24 V dual‑output design without extra tooling costs. Their engineering support saved us 3 weeks of development time.”
Mike S., Operations Lead – MedAcoustic Canada
“Compliance was a deal‑breaker. The CE, FCC, and IEC 60601‑1 certifications arrived with the shipment, so we passed regulatory review on day one.”
David Chen, Senior Magnetic‑Component Engineer
With 12 years at Huizhou Xinchangda Electronic, David leads the R&D team that pioneered low‑noise toroidal designs for the global audio market. He holds a Master’s in Electrical Engineering (Tsinghua University) and regularly publishes in the IEEE Magnetics Society. Contact: david.chen@xcdmagnetic.com
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All certifications are up‑to‑date (2025) and can be provided on request.
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