# AAL - USB Audio Isolator

Removes USB noise, interference and ground loops for cleaner audio and more stable USB connections.

- **Seller:** [Analog Audio Lab's store](https://www.lectronz.com/stores/aalab), LES MONTS D AUNAY, Calvados, France
- **Price:** €55.00 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Audio, Amplifier
- **Country of origin:** France
- **Product page:** https://www.lectronz.com/products/aal-usb-audio-isolator

## Images

![AAL - USB Audio Isolator](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzEyNDgsInB1ciI6ImJsb2JfaWQifX0=--b0773c66341b0fca17cfe5d7efb5279e0643f7a2/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/USB%20Audio%20Isolator%20-%20Top%20view.jpg)
![AAL - USB Audio Isolator](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzEyNTIsInB1ciI6ImJsb2JfaWQifX0=--e5fc9fa67462e354fd3f98ad6a6f3cfeccfcba67/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/USB%20Audio%20Isolator%20-%20Device%20side%20view.jpg)
![AAL - USB Audio Isolator](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzEyNTYsInB1ciI6ImJsb2JfaWQifX0=--9324d2ee005957f35c74c3cf71edd855ce74f538/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/USB%20Audio%20Isolator%20-%20Host%20side%20view.jpg)
![AAL - USB Audio Isolator](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzEyNjAsInB1ciI6ImJsb2JfaWQifX0=--bae79c3e6db6fd8bf6e4637c6e07b63af1232da6/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/USB%20Audio%20Isolator%20-%20Bottom%20view%20powered.jpg)
![AAL - USB Audio Isolator](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzEyNjQsInB1ciI6ImJsb2JfaWQifX0=--f1aa2a485ab64f035c879af34172f32d8bd70103/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/USB%20Audio%20Isolator%20-%20PCB%20Top%20View_1.jpg)
![AAL - USB Audio Isolator](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzEyNjgsInB1ciI6ImJsb2JfaWQifX0=--71a2e7b1e1d2a6fab8000cfeb1755246f65e64f0/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/USB%20Audio%20Isolator%20-%20PCB%20Top%20View_2.jpg)
![AAL - USB Audio Isolator](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzEyNzIsInB1ciI6ImJsb2JfaWQifX0=--ea07dbbae37d9b62107df6e204019867b1f6d8f0/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/USB%20Audio%20Isolator%20-%20PCB%20Bottom%20view_2.jpg)

## Description

##What is it?

The **AAL – USB Audio Isolator** is designed to eliminate USB interference and ground loop noise by providing full galvanic isolation between your computer and USB audio device.

- Galvanic isolation of both data and power lines
- Reduces digital noise and USB interference
- Improves perceived background silence and listening comfort
- Helps protect equipment from spikes and electrical disturbances

**Result**: a cleaner, quieter and more stable USB signal for your DAC or audio interface.

**Connectors**

- Input: USB-B (HOST)
- Output: USB-A (DEVICE)

**Why did you make it?**

Many DACs and USB audio interfaces suffer from unwanted interference introduced by computers, USB hubs and power supplies.

**Typical symptoms include:**

- Digital noise from PCs, USB peripherals, mice or switching power supplies
- Ground loop hum and electrical interference
- Instability caused by noisy USB environments
- Reduced performance with sensitive or entry-level USB DACs

**Especially useful with:**

- USB-powered DACs
- Laptops running on AC power
- USB hubs and docking stations
- Audio workstations and studio setups
- Home Hi-Fi systems using USB DACs

##What makes it special?

**Technology used:**

- USB galvanic isolation based on the **ADuM4160 (Analog Devices)**
- High-voltage galvanic USB isolation
- Optimized 4-layer PCB design for signal integrity and reliability
- Independent isolated power domain

**Compatible with:**

- USB Low-Speed / Full-Speed devices (1.5 / 12 Mbps)
- Many USB DACs and audio interfaces operating in USB Full-Speed mode
- USB HID peripherals
- Windows / macOS / Linux systems
- Driverless operation with supported USB class-compliant devices

**Not compatible with native USB High-Speed (480 Mbps) devices.**

*If unsure about compatibility with your DAC or audio interface, feel free to contact us before ordering.*

##Why this price?

Built using carefully selected high-quality components (Analog Devices, Murata, STMicroelectronics, etc.) chosen for performance, reliability and long-term durability.

All parts are sourced from reputable suppliers to ensure quality and traceability.

##Who did it?

Designed, hand-assembled and individually tested in France by **AAL — Analog Audio Lab**.

*Practical electronics designed to solve real-world problems.*

[analog.audio.lab@gmail.com](mailto:analog.audio.lab@gmail.com)