
A high-fidelity power transformer designed specifically for high-end Hi-Fi audio amplifiers. Wound using a high-permeability CRGO core and Class H all-copper enameled wire, it features extremely low magnetic leakage, a low noise floor, and excellent dynamic response, making it an ideal power source for high-quality audio equipment.
Order(MOQ) :
50 Units (Custom winding ratios supported)Price Range :
145.00 USD/Unit (Volume dependent)
Our Audio Series Toroidal Power Transformers are meticulously engineered for the most demanding audiophiles and professional audio equipment manufacturers. Unlike standard transformers, our audio-grade units utilize a high-permeability, grain-oriented silicon steel (CRGO) core without any air gaps. This results in an exceptionally low electromagnetic field, virtually eliminating background hum and interference. Each unit is wound with high-purity H-class copper wire and undergoes a vacuum pressure impregnation process to ensure zero mechanical vibration, providing a clean, stable, and dynamic power supply for high-fidelity sound reproduction.
| Model Series | Application Focus | Power Range | Primary / Secondary Voltage | Key Standards | Efficiency |
|---|---|---|---|---|---|
| TR-Audio | Hi-Fi Audio & Pro-Sound | 50VA - 1000VA | 110V/220V to 12V-36V | CE, RoHS | > 95% |
| TR-Medical | Medical Grade Diagnostic | 100VA - 3kVA | Ultra-Low Leakage (<100μA) | IEC 60601-1, UL | > 92% |
| TR-Industrial | Voltage Conversion | 300VA - 5kVA | 380V/220V/110V Universal | CE, CB | > 96% |
| TR-Power | Industrial Automation | 50VA - 10kVA | 50/60Hz Custom Ratios | IEC 61558 | > 94% |
| TR-LED | Outdoor Landscape | 100W - 600W | 120V/240V to 12V/24V | ETL, IP65 | > 90% |
Our low-noise audio toroidal transformers are engineered for a wide range of high-end acoustic and professional broadcasting environments:

Hi-Fi amplifiers

Home theater systems

Studio equipment

High-end audio processors
✔ ISO 9001:2015 Certified Factory
Strict quality control from raw CRGO steel to final winding.
✔ 100% Noise & Burn-In Tested
Every transformer is individually tested for zero humming.
✔ International Standards Compliance
Products are manufactured through qualified facilities meeting IEC, CE, UL, and RoHS requirements.
✔ Rapid OEM/ODM Customization
Quotations within 24 hours and fast prototype samples engineered to your exact specs.
Q1: Can we customize the primary and secondary voltages for our amplifier design?
Yes, we fully support OEM and custom winding ratios. Whether you need standard 110V/220V dual primary inputs or specific secondary voltage outputs (from 12V to 36V and beyond), our engineers can design the transformer to match your exact circuit requirements.
Q2: Why are toroidal transformers better than standard E-I transformers for audio equipment?
Toroidal transformers feature a continuous CRGO core without air gaps, which drastically reduces magnetic leakage and background hum. Combined with our vacuum pressure impregnation process, this eliminates mechanical acoustic vibration, providing a cleaner and more dynamic power supply for Hi-Fi audio systems.
Q3: What is the normal production lead time for custom sample orders?
Once the technical specifications and winding ratios are confirmed, custom prototype samples are typically manufactured and dispatched within 5 to 7 business days. Bulk production lead times depend on order volume and standard MOQ requirements.