EI28 Permalloy Audio Isolation Transformer with 600:600 Ohm Impedance and 1:1 Ratio for Professional Audio Equipment

The EI28 Permalloy Audio Transformer is a 600:600Ω, 1:1 audio isolation transformer designed for professional and commercial audio applications. With a high-permeability Permalloy core and reliable DIP through-hole construction, it provides stable signal transmission, effective noise isolation, and good audio performance.

Designed as a cost-effective alternative to comparable audio transformers from brands such as Jensen, Lundahl, CineMag, and Edcor, it offers similar core functions and application flexibility while providing OEM customization and competitive factory-direct pricing.

Ideal for audio equipment manufacturers, PCB designers, and distributors looking for a reliable alternative for new projects or replacement applications.

• 600:600 Ω, 1:1 Ratio - Suitable for balanced audio signal isolation and impedance matching
• Permalloy Core - High magnetic permeability provides excellent audio performance and signal response
• Audio Isolation - Reduces ground-loop noise, hum, and unwanted interference
• DIP Through-Hole Design - Easy to install and solder on PCBs
• Compact EI28 Structure - Space-saving design for a wide range of audio equipment
• Reliable Manufacturing - Suitable for OEM/ODM projects and customized requirements

• Audio amplifiers and preamplifiers
• Professional audio equipment
• Mixing consoles and audio interfaces
• Microphone and line-level signal circuits
• Intercom and communication systems
• Ground-loop noise isolation
• PCB-based audio and electronic equipment

Shenzhen Zhixiangyuan Electronics Co., Ltd., established in 2011, is a professional manufacturer of magnetic components with production facilities in Huizhou and Guang'an. Our Huizhou manufacturing site spans 10,000 square meters dedicated to production and laboratory testing.

We specialize in producing low-frequency control transformers, high-frequency transformers, inductors, current transformers, EMI filters, and related magnetic components. Certified with ISO9001, CE, and UL standards, all our products comply with RoHS environmental requirements.