Stereo Audio Isolation Transformer for Noise Reduction Electrical Isolation and High Fidelity Audio
Utilizing advanced transformer isolation technology, it effectively separates pure audio signals from disruptive noise, preventing interference between high-power source equipment and low-power amplifiers. This results in crystal-clear, high-fidelity audio reproduction ideal for demanding audio environments.
Application Specifications
| Parameter | Specification |
| Model | AU-100 |
| Channel configuration | Dual channel (A / B) |
| Isolation method | Transformer (galvanic) isolation; passive, no power supply required |
| Isolation transformers | 2 x ZXY-2207, 600:600, 1:1 ratio (one per channel) |
| Core material | Permalloy (Pomo alloy) with shielding cover |
| Inputs - channels A / B | Combo XLR (female) and 6.35mm |
| Inputs - line level | RCA (L/R), gold-plated; 3.5mm AUX IN |
| Outputs - channels A / B | Combo XLR (female / male) and 6.35mm |
| Outputs - line level | RCA (L/R), gold-plated |
| Switch contact | Permalloy silver-plated, long-life function switch |
| Shielding | Double-layer shielding circuit design |
| Enclosure | Brushed metal housing |
| Shipping | DHL / UPS / FedEx / EMS |
Product Features
| Feature | Description |
| High-efficiency Noise Reduction | Significantly reduces electromagnetic interference (EMI), radio-frequency interference (RFI), and ground loop noise |
| Electrical Isolation | Separates input and output audio circuits electrically |
| Stereo Signal Fidelity | Preserves spatial characteristics and depth of stereo sound |
| Plug-and-Play Operation | Easy to use with no complex setup or configuration required |
| Wide Compatibility | Works with various audio devices including speakers, headphones, mixers, and amplifiers |
| Compact Design | Small, lightweight form factor |
| Durable Construction | Built with high-quality materials for long-lasting performance |
Product Advantages
● Breaks ground loops at the source: each channel runs through a 1:1 (600:600) isolation transformer.
● True dual-channel isolation: channel A and channel B each have a dedicated transformer and their own connector.
● Permalloy core with shielding cover: the Permalloy (Pomo alloy) transformer sits inside a shielding can.
● Double-layer shielding circuit design: a second shielding layer on the board protects the audio path from EMI and RFI in racks, studios and installed AV systems.
● Switchable ground lift: the front-panel GND / LIFT switch breaks the ground connection when the loop is already closed elsewhere.
● Passive design, no power supply: there is no power adapter and no active stage, so the isolator adds no noise floor or self-noise of its own to the signal.
● Balanced and unbalanced sources on one box: combo XLR / 6.35mm inputs accept either type, while gold-plated RCA line inputs and a 3.5mm AUX input cover consumer and pro sources.
● Built for repeated use: Permalloy silver-plated contact switch and gold-plated RCA plugs give stable, low-resistance contact.
Application scenario
Application
Professional studio and recording
Between console, outboard gear, monitors, audio interfaces and computers to remove hum from the monitoring and recording chain.
Live sound and stage
Between stage sources (DI boxes, keyboards, playback) and the FOH console or powered speakers, where stage power and audio grounds differ.
Video conferencing and unified communications
Isolating conferencing codecs, PC audio and speaker systems in meeting rooms and control rooms.
Conference and interpretation systems
Isolating delegate microphone stations, interpretation consoles and headsets, and linking audio between rooms or booths.
Home theater and hi-fi
Between TV, AV receiver and powered subwoofers or active speakers, wherever a hum is audible in the system.
Installed and fixed AV systems
Auditoriums, showrooms and similar fixed installations, where long cable runs and multiple power circuits make ground loops likely.
Product Details Showcase
Quality & Testing Assurance