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For Purchasing Managers, Technical Directors, and Operations Leaders who need reliable, CE‑certified audio transformers without the premium price tag.
Get Free Quote in 24 hThese pain points translate into **up to 35 % higher total cost of ownership** for audio‑equipment manufacturers.
See How We Solve This →| Parameter | Value | Unit |
|---|---|---|
| Rated Voltage | 70 | V |
| Power Rating | 30 | W |
| Impedance | 8–16 | Ω |
| Frequency Range | 20–20,000 | Hz |
| Efficiency | > 95 | % |
| Certifications | CE, RoHS, FCC, ISO 9001 | — |
| Packaging | Anti‑static bag + carton | — |
Our 70v speaker transformers are deployed in:
Case Study: A leading US OEM cut its transformer spend by $180k per year after switching to Xinchangda’s 70v units, while passing FCC compliance audits on the first attempt.
Download Full Case PDF →
“Switching to Xinchangda’s 70v transformer cut our BOM cost by 38 % and improved reliability. Delivery was always under 48 h.” – James L., Procurement Director, AudioTech USA
All products are backed by:
Q1: What is the minimum order quantity (MOQ) for the 70v speaker transformer?
A: Our standard MOQ is 500 pieces. For larger projects we can offer tiered pricing down to 100 pieces with a short lead‑time.
Q2: Can you provide custom winding ratios or housing colors?
A: Yes. Our R&D team can modify winding turns, core material, and external coating to meet OEM/ODM specifications.
Q3: How do you ensure compliance with US FCC and CE regulations?
A: Every batch undergoes pre‑shipment FCC/CE testing in our in‑house lab. Test reports are attached to the commercial invoice.
Q4: What are the payment terms for first‑time buyers?
A: 30 % T/T deposit, 70 % balance before shipment. We also accept L/C at sight for larger orders.
Q5: What logistics options are available for US customers?
A: We ship via DHL, UPS, or FedEx air freight (48‑hour delivery). Sea freight is available for volumes over 10 k units with FOB pricing.
Q6: Do you offer a sample for evaluation?
A: Absolutely. One free sample (including shipping) is provided to qualified purchasers.
Q7: What after‑sales support is included?
A: 12‑month warranty, technical hotline (24/7), and on‑site assistance for critical installations.
Q8: How fast can you scale production if demand spikes?
A: Our 14 automated lines can increase output to 120 k units/month within two weeks of notice.
Limited Offer: First 200 orders receive a **free engineering sample** and a **money‑back guarantee** if the transformer fails to meet spec.
John D., Senior Engineer, SoundWave Corp. – “The 70v transformer performed flawlessly in our latest car‑audio platform. We saved 32 % on BOM cost and cut lead‑time to 2 days.”
Maria S., Procurement Manager, AudioGear Ltd. – “Xinchangda’s certification package removed all compliance hurdles for our EU market launch.”
David K., Operations Lead, HomeTheater Inc. – “Fast shipping and responsive after‑sales support helped us meet a tight Black‑Friday rollout.”
Alex Chen, Senior Application Engineer – Xinchangda Electronic with 12 years of experience designing magnetic components for automotive and professional‑audio markets. Published author of “Modern Transformer Design” (2023) and regular speaker at the International Audio Engineering Conference.
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