June 13, 2021

HumZero

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HumZero removes unwanted noise and prevents ground loops in the audio system by means of galvanic isolation.

At the heart of every high-end audio system is ground. It’s where our audio signals, from the tiniest moving coil cartridge output to the largest output from our preamps and sources all reference to. The cleanliness of that ground has a major impact on both sound quality and noise levels. In a perfect world, our audiophile-grade systems would benefit from a dedicated ground, one that only the stereo system is connected to. But, most of us don’t live in perfect worlds. More often than not, our home audio systems commingle with connections to the outside world and this can be problematic. Noise and ground contamination enter our homes and dirty our grounds through CATV connections with the cable company. If your audio system has any connection to your AV system, then you need PS Audio’s HumZero.

$49

This product is only available through a dealer in your area.LOCATE A DEALER

TALK TO A HI-FI SPECIALIST
1-800-PSAUDIO

DESIGN

Ground contamination is insidious. Once connected together, the dirty outside cable television grounds will mix with your home’s cleaner AC power grounds and degrade the performance of both the video as well as audio systems. PS Audio’s HumZero stops ground contamination before it can enter the system. Using galvanic isolation techniques, HumZero isolates outside noisy grounds from cleaner inside grounds while maintaining perfect picture quality up to 4K Ultra television signals, or high resolution streaming audio up to 384kHz 24 bit and beyond. HumZero’s galvanic isolator provides a ruler-flat video or streaming audio signal producing either broadcast-quality images or high-resolution audio data you can depend on. HumZero is flat to 50mHz.

APPLICATION

Wherever the outside world enters your home is where the potential for ground contamination exists. Typically, we rely upon one common ground that our electrical system is referenced to. That ground is generally handled by a copper rod buried deep in the ground. The problem for audio systems is when another ground at a very different potential is tied into the home. The most likely culprit comes from our internet/cable television providers who tie the grounds of their noisy systems at the street. HumZero can be used to galvanically isolate the CATV ground keeping clean the house ground. Use HumZero between the incoming cable and your television or any CATV connection that is connected to your high-end audio system.

Technology

GROUND LOOPSGALVANIC ISOLATIONNOISE FREE PERFORMANCE

In an audio or video system, the ground should be the single lowest point in the circuit as provided by the AC power. Ground loops occur when a second, competing grounds with an electrical difference is added. When a loop occurs hum, noise, and degraded performance of the audio and video system are the result. Customers often break ground loops through the use of AC cheater plugs, but this is unsafe as AC grounding should be maintained. The proper way of breaking a ground loop is to disconnect the offending ground, which is what HumZero will do.

Features

GALVANICALLY ISOLATES GROUNDCLEANS NOISY GROUNDSKEEPS SYSTEM HUM AND BUZZ FREEIMPROVES AUDIO QUALITYIMPROVES VIDEO QUALITYMAINTAINS ELECTRICAL SAFETYRULER-FLAT TO 50 MHZBROADCAST QUALITY VIDEO

UP TO 4K ULTRA VIDEO

SUPPORTS STREAMING AUDIO TO 384 KHZ 24 BIT AND BEYOND

QUESTIONS. Go to: https://www.psaudio.com/products/humzero/

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