6.5mm Audio Ground Loop Isolator – Hum-Free HiFi Sound
6.5mm Audio Ground Loop Isolator – Hum-Free HiFi Sound
CACAZI 6.5mm Audio Ground Loop Isolator
Tired of unwanted hum and electrical interference ruining your audio signal? The CACAZI 6.5mm Audio Ground Loop Isolator is the professional-grade solution for audiophiles, musicians, sound engineers, and home studio enthusiasts who demand crystal-clear, hifi sound output in every setup.
This passive isolator physically separates potential differences between connected audio systems, effectively eliminating ground loop hum and electrical interference. The result? Pure, clean audio transmission across the full 20Hz–20kHz frequency spectrum — whether you're on stage, in the studio, or in the conference room.
Key Features
- Eliminates Ground Loop Hum: Single-channel physical isolation cuts interference and unwanted noise for pristine audio clarity.
- Wide Frequency Response: Covers the full audible range — approximately 20Hz to 20kHz — with minimal signal loss (fixed loss less than 0.7dB at 1kHz).
- Dual Impedance Options: Input/output impedance of 600Ω or 10KΩ to suit a variety of line-level audio equipment.
- High Isolation Voltage: Rated for AC 50Hz–60Hz, 0V–1500V isolation voltage and DC 1000V insulation resistance for safe, reliable operation.
- Durable Metal Casing: Solid metal construction provides excellent wear resistance and longevity, built for professional and touring use.
- Passive Operation: No battery or external power required — completely passive design, no interference from power supplies.
- Versatile Compatibility: Works with computers, amplifiers, mixers, PA systems, guitars, keyboards, and any line-level audio equipment with 6.5mm (1/4") TRS or TS connections.
- Compact & Portable: Approx. 85×31×26mm (3.35×1.22×1.02 in), lightweight at 190g — easy to pack in any gear bag.
Ideal For
- Home studios and recording setups
- Live performances and stage rigs
- Conference rooms and AV installations
- Guitar and keyboard signal chains
- Broadcast and podcasting environments
Specifications
| Model | 6.5-6.5 |
| Size | Approx. 85×31×26mm / 3.35×1.22×1.02 in |
| Material | Metal |
| Input Impedance | 600Ω / 10KΩ |
| Output Impedance | 600Ω / 10KΩ |
| Operation Type | Passive (No Power Required) |
| Main Function | Single channel physical isolation |
| Frequency Response | Approx. 20Hz – 20kHz |
| Fixed Loss | < 0.7dB (ref. 1kHz, 1Vrms) |
| Insulation Resistance | DC 1000V, 100Ω |
| Isolation Voltage | AC 50Hz–60Hz, 0V–1500V |
| Weight | 190g |
| Power Source | Passive (AC/DC compatible signal path) |
| Country of Origin | Made in Mainland China |
Package Includes
- 1× CACAZI 6.5mm Audio Ground Loop Isolator
Note: Please allow 1–2cm variance due to manual measurement. Colors may vary slightly from product images due to monitor differences.
Learn more: ENERGY STAR product efficiency guidance
Frequently Asked Questions
Q: What is a 6.5mm audio ground loop isolator and how does it work?
A: A 6.5mm audio ground loop isolator is a passive device that physically separates the ground connections between two audio systems using transformer-based isolation. This eliminates the potential differences that cause ground loop hum and electrical interference, resulting in clean, clear audio transmission without unwanted noise.
Q: Does the CACAZI 6.5mm audio isolator require any power to operate?
A: No — this isolator is completely passive and requires no battery or external power source. Simply connect it inline between your audio source and destination device using standard 6.5mm (1/4") connectors, and it will work immediately.
Q: What types of audio equipment is this isolator compatible with?
A: This 6.5mm audio ground loop isolator is compatible with a wide range of line-level audio equipment, including electric guitars, keyboards, amplifiers, mixers, PA systems, computers, and broadcast equipment — anywhere a 6.5mm (1/4") TRS or TS connection is used and ground loop hum is an issue.
Q: Will this isolator affect my audio quality or signal strength?
A: The fixed insertion loss is less than 0.7dB at 1kHz, which is negligible in virtually all practical audio applications. The frequency response spans the full audible range (approx. 20Hz–20kHz), ensuring your audio signal remains natural and faithful to the original source.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.