{"product_id":"kguss-topping-hs02-usb-audio-isolator-eliminates-ground-loop-hum","title":"KGUSS Topping HS02 USB Audio Isolator - Eliminates Ground Loop Hum","description":"\u003cp\u003eIn this review the KGUSS Topping HS02 USB audio isolator is evaluated for listeners and professionals who need a simple way to remove ground loop noise from USB audio chains. The core reason to consider the HS02 is its \u003cstrong\u003efully isolated design\u003c\/strong\u003e that separates the audio signal from ground while allowing auxiliary power without adding interference. For anyone dealing with hum or noise when connecting a computer to DACs, USB streamers or recording gear, the HS02 promises a straightforward hardware fix with high-resolution compatibility.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Isolated Design:\u003c\/strong\u003e Prevents ground loop interference and stops hum while letting auxiliary power be used without introducing new noise into the audio path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo Inputs, Two Outputs:\u003c\/strong\u003e A physical input switch selects between USB-B and Type-C from the computer, and an output switch selects USB-A or Type-C to the USB device for flexible connectivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Resolution Support:\u003c\/strong\u003e Automatically identifies USB2.0 speeds and supports high-resolution audio up to PCM 32bit\/768kHz and DSD512 Native for demanding playback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtremely Low Latency:\u003c\/strong\u003e Latency of 0.073us keeps timing accurate for hifi listening and professional monitoring without audible delay.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Isolation Voltage:\u003c\/strong\u003e Withstands up to 1500VDC isolation, providing robust separation between host and device grounds for safety and noise suppression.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe HS02 is best for audiophiles, home studio users, and anyone who experiences audible ground loop hum when connecting a computer to a USB DAC or USB-powered audio device. Its simple switches and broad resolution support make it suitable for users who want a plug-and-play way to clean up sound without reworking grounding or adding complicated equipment.\u003c\/p\u003e\u003cp\u003eIt is less appropriate for those who need USB3.0 bandwidth or devices that depend on nonstandard USB features outside USB2.0, or for users who prefer a powered hub with many ports. Also, a few users noted varied impressions of build quality, so buyers expecting heavy industrial duty should consider that feedback.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEffectively reduces ground loop noise, with real-world measurements showing up to 50dB reduction.\u003c\/li\u003e\n\u003cli\u003eSupports very high-resolution formats including PCM 32bit\/768kHz and DSD512 Native for hi-res playback.\u003c\/li\u003e\n\u003cli\u003eFlexible input and output switching between USB-B, USB-A and Type-C covers most modern setups.\u003c\/li\u003e\n\u003cli\u003eUltra low latency suits both listening and professional monitoring duties.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSome customers report mixed impressions of build quality and occasional reliability issues over time.\u003c\/li\u003e\n\u003cli\u003eLimited to USB2.0 transmission speeds, so it will not provide USB3.0 data rates if that is required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHS02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003eWithstands up to 1500VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Interfaces\u003c\/td\u003e\n\u003ctd\u003eUSB-B and Type-C (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Interfaces\u003c\/td\u003e\n\u003ctd\u003eUSB-A and Type-C (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio Compatibility\u003c\/td\u003e\n\u003ctd\u003ePCM 32bit\/768kHz, DSD512 Native\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLatency\u003c\/td\u003e\n\u003ctd\u003e0.073us\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB Standard\u003c\/td\u003e\n\u003ctd\u003eUSB2.0 low\/full\/high speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe HS02 is a practical, good-value tool for anyone battling ground loop noise when using USB audio devices. It delivers clear noise reduction, flexible connections, and top-tier resolution support, making it a strong pick for audiophiles and home studios; those needing USB3.0 speeds or industrial ruggedness should look elsewhere.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill the HS02 remove hum from my DAC?\u003c\/strong\u003e\u003cbr\u003eYes, the \u003cstrong\u003efully isolated design\u003c\/strong\u003e is specifically intended to eliminate ground loop hum between a computer and a USB audio device.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it support high-resolution audio?\u003c\/strong\u003e\u003cbr\u003eYes, it supports PCM up to 32bit\/768kHz and DSD512 Native while operating over USB2.0.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use it with Type-C only systems?\u003c\/strong\u003e\u003cbr\u003eYes, the unit includes Type-C input and output options and physical switches to select the active connections.\u003c\/p\u003e","brand":"TOPPING","offers":[{"title":"Default Title","offer_id":48203618189531,"sku":"B0BTVL6J4M","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61Dvwe9Yv1L._AC_SL1500.jpg?v=1770307981","url":"https:\/\/gearmusthave.com\/products\/kguss-topping-hs02-usb-audio-isolator-eliminates-ground-loop-hum","provider":"GearMustHave","version":"1.0","type":"link"}