{"product_id":"hall-technologies-gli-35mm-stereo-audio-ground-loop-isolator-clean","title":"Hall Technologies GLI-35MM Stereo Audio Ground-Loop Isolator - Clean","description":"\u003cp\u003eIn this review of the Hall Technologies GLI-35MM the bottom line is simple: if you need to remove audible hum or buzz between a source device and a TV or amplifier, this small inline unit does the job with minimal fuss. The GLI-35MM is aimed at AV professionals and anyone running presentations or connecting notebooks, desktops, or portable players to sound systems where ground loop interference appears. It earns its place by delivering reliable isolation and a near-flat frequency response, so the audio character remains intact while unwanted noise disappears.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround-loop elimination:\u003c\/strong\u003e Removes hum and buzz between an audio source and TV or amp so presentations and music play cleanly without background interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal 3.5mm compatibility:\u003c\/strong\u003e Works with notebook and desktop PCs and all portable devices that use a 3.5mm mini-stereo plug, making it simple to add to existing cables.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNear-perfect frequency response:\u003c\/strong\u003e Maintains audio fidelity with a quoted response of +.03 dB from 20 to 20,000 Hz so lows and highs remain natural.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProprietary transformers and filters:\u003c\/strong\u003e Uses designed audio transformers and filtering to eliminate spurious buzz and hum without audible side effects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and economical:\u003c\/strong\u003e Small inline form factor is easy to pack for classroom, conference, or mobile AV setups while keeping costs low.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe GLI-35MM is best for AV technicians, educators, presenters, and homeowners who frequently connect laptops, phones, or other 3.5mm-equipped devices to TVs, projectors with external speakers, or amplifiers and need a quick fix for ground loop noise. It is particularly useful in classrooms, conference rooms, and small installations where a noisy ground connection would otherwise disrupt speech or music.\u003c\/p\u003e\n\n\u003cp\u003eThose who should look elsewhere include users needing balanced XLR isolation for pro audio racks or installations requiring gain control, multiple channels, or DSP features; the GLI-35MM is a simple single-channel isolator and not a multichannel processor.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEffectively eliminates audible hum and ground loop buzz in consumer and PC-to-AV connections.\u003c\/li\u003e\n\u003cli\u003eMaintains a near-flat \u003cstrong\u003efrequency response\u003c\/strong\u003e, preserving tonal accuracy from 20 to 20,000 Hz.\u003c\/li\u003e\n\u003cli\u003ePlug-and-play 3.5mm design is universally compatible with portable devices and computers.\u003c\/li\u003e\n\u003cli\u003eCompact, inexpensive solution that is easy to deploy in classrooms and conference rooms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLimited to single-channel stereo via 3.5mm; not suitable for balanced pro audio I\/O or multichannel installations.\u003c\/li\u003e\n\u003cli\u003eNo built-in level control or additional signal processing features for advanced audio work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eGLI-35MM Stereo Audio Ground-Loop Isolator \u0026amp; Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectors\u003c\/td\u003e\n\u003ctd\u003e3.5mm mini-stereo plug and jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e+.03 dB from 20 to 20,000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary function\u003c\/td\u003e\n\u003ctd\u003eEliminates ground loop noise between source and audio equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eProprietary audio transformers and filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse cases\u003c\/td\u003e\n\u003ctd\u003eNotebooks, desktops, portable devices to TV or amplifier connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003eCompact inline form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Hall Technologies GLI-35MM is a practical, low-cost fix for common ground loop problems when connecting consumer devices to TVs and amplifiers. It delivers clean audio with minimal impact on tonal balance and is ideal for classrooms, conference rooms, and mobile AV setups. Buy it if you need a simple, reliable isolator; audio professionals requiring balanced multichannel solutions should consider more advanced hardware.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this remove all hum from my system?\u003c\/strong\u003e\u003cbr\u003eIt removes hum caused by ground loops between the source and the receiving device in most consumer setups, but it cannot fix issues unrelated to grounding or faults in equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it with phones and tablets?\u003c\/strong\u003e\u003cbr\u003eYes, the 3.5mm mini-stereo connector works with any portable device that provides a standard 3.5mm audio output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for pro audio racks?\u003c\/strong\u003e\u003cbr\u003eNo, it is a single inline stereo isolator and is not intended as a replacement for balanced XLR isolation or multichannel professional audio gear.\u003c\/p\u003e","brand":"Hall Research","offers":[{"title":"Default Title","offer_id":48638282203355,"sku":"B0CV22N9T4","price":37.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41UFBugXb_L._AC.jpg?v=1778565028","url":"https:\/\/gearmusthave.com\/products\/hall-technologies-gli-35mm-stereo-audio-ground-loop-isolator-clean","provider":"GearMustHave","version":"1.0","type":"link"}