Stop Speaker Hum & Ground Loop Noise
Hearing a constant hum, buzz or unwanted electrical noise from your speakers, mixer or audio interface?
Before replacing expensive equipment, check whether the problem is caused by a ground loop.
The PRO MAX2 Passive Audio Ground Loop Isolator physically isolates the ground connection between audio devices, helping reduce ground-loop hum and unwanted electrical interference while preserving the original character of your audio.
No batteries. No external power. No complicated setup.
Professional Audio Connections In One Unit
Unlike basic ground loop isolators limited to one connector type, PRO MAX2 supports multiple professional audio connections in a single unit.
✔ XLR ↔ 6.35mm ↔ RCA
✔ Dual-channel stereo isolation
✔ Ground Lift to help break unwanted ground loops
✔ -15dB PAD to help manage high signal levels
✔ Passive design — no power required
✔ Heavy-duty shielded metal housing
How Does a Ground Loop Isolator Connect?
A typical audio setup can be connected as:
PC / Laptop → PRO MAX2 → Mixer → Amplifier → Speakers
PRO MAX2 can also be placed between other audio devices where ground-loop noise occurs. The exact connection depends on the equipment and connector types being used.
What Can PRO MAX2 Be Used For?
🎙️ Home Studios & Podcasts
Helps reduce unwanted electrical noise between computers, audio interfaces and studio monitors.
🎧 PC, DAC & Home Audio
Useful for ground-loop noise between computers, DACs, amplifiers and active speakers.
🎛️ Live Sound & DJ Systems
Helps isolate mixers, processors, amplifiers and powered audio equipment.
🔊 PA, Church & Conference Systems
Useful when audio equipment is connected across different power sources or longer cable runs.
Why Choose PRO MAX2?
Multiple professional connectors: XLR, 6.35mm and RCA connections are supported in one unit, making it easier to integrate different types of audio equipment.
True physical ground isolation: The audio transformers physically isolate the connected signal paths to help reduce unwanted ground-loop interference.
Passive operation: No battery, USB power or external power supply is required.
Professional construction: The shielded metal chassis and non-slip EVA base are designed for regular studio, live sound and desktop use.
Technical Specifications
• Type: Passive Dual-Channel Audio Ground Loop Noise Isolator
• Enclosure: Heavy-Duty Shielded Metal Chassis + Non-Slip EVA Base
• Inputs: 2 × XLR (Female) | 2 × 6.35mm | 2 × RCA
• Outputs: 2 × XLR (Male) | 2 × 6.35mm | 2 × RCA
• Frequency Response: 20Hz – 25kHz (±0.2dB @1kHz)
• Impedance Matching: 600Ω / 10kΩ
• Isolation Voltage: AC 50Hz–60Hz (Up to 1500V protection)
• Dimensions: 123 × 89 × 40mm
• Net Weight: 470g
Will It Affect My Sound Quality?
PRO MAX2 is designed to reduce unwanted ground-loop interference while preserving the original character of your audio.
Its high-fidelity audio transformers provide a 20Hz–25kHz frequency response, helping maintain the bass, midrange and high frequencies of the audio signal.
Is PRO MAX2 Bi-Directional?
Yes. PRO MAX2 can be used in either signal direction, depending on the connected equipment.
Examples include:
XLR → RCA | RCA → XLR | 6.35mm → XLR | XLR → 6.35mm
Frequently Asked Questions
What is a ground loop isolator?
A ground loop isolator is an audio device that uses transformer isolation to physically separate the ground connection between connected audio equipment. It is commonly used to reduce unwanted hum, buzz and electrical interference caused by ground loops.
How do I remove ground loop hum from speakers?
First check your cables, connections and power sources. If the noise is caused by a ground loop between connected audio devices, a ground loop isolator such as PRO MAX2 can help reduce the unwanted hum or buzz.
Does a ground loop isolator need power?
No. PRO MAX2 uses a passive transformer-based design and does not require batteries, USB power or an external power supply.
Can I connect XLR, 6.35mm and RCA equipment?
Yes. PRO MAX2 supports XLR, 6.35mm (1/4-inch) and RCA connections, allowing different types of balanced and unbalanced audio equipment to be connected through the unit.
Does a ground loop isolator reduce audio quality?
PRO MAX2 is designed to preserve the original character of the audio. Its specified frequency response is 20Hz–25kHz (±0.2dB @1kHz), helping maintain the original bass, midrange and high-frequency content.
What’s In The Box?
1 × PRO MAX2 Passive Audio Ground Loop Isolator
Cables are optional depending on the selected package.
22 reviews for Audio Ground Loop Noise Isolator – Hum & Buzz Eliminator