LT & HT Power Transformers Solutions

Low Noise Audio Toroidal Power Transformer (50VA - 1000VA)

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)

Professional Overview

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 & Specifications

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%
Need Custom Winding Ratios or Dimensional CAD Drawings? Our R&D engineering team provides custom toroidal transformer designs (OEM/ODM) within 24 hours.

Key Technical Advantages

  • Zero Mechanical Noise: Vacuum-impregnated resin sealing suppresses acoustic vibration.
  • Ultra-Low Magnetic Leakage: The toroidal geometry inherently contains the magnetic field, protecting sensitive audio circuits.
  • Dynamic Response: Low DC resistance and low output impedance allow for rapid current delivery during peak audio signals.
  • Thermal Stability: Built-in thermal protection and high-grade insulation (Class B/F/H) for 24/7 studio operation. 3434

Applications

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

 

Why Audio Engineers Trust Our Manufacturing Facility

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.

FAQ

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.

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