{"product_id":"av-link-ground-loop-isolator-3-5mm-jack-to-3-5mm-socket","title":"AV:Link Ground Loop Isolator 3.5mm Jack to 3.5mm Socket","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe AV:Link ground loop isolator is a passive transformer-based device that eliminates mains hum and buzz caused by ground loops between two pieces of audio equipment connected via 3.5mm jack. The isolator sits inline between a source device (phone, laptop, tablet, MP3 player) and an amplifier, powered speaker or car stereo, breaking the ground connection while allowing the audio signal to pass through unaffected.\u003c\/p\u003e\n\u003cp\u003eGround loops occur when two devices share different earth paths in the mains supply, creating a voltage difference that manifests as a 50Hz hum or buzz through the audio system. This is common when connecting a laptop to a home stereo, a phone to a car AUX input, or a tablet to powered speakers while both devices are plugged into mains power. The AV:Link isolator eliminates this hum without requiring any configuration, battery power or external supply — it works entirely passively through audio transformer coupling.\u003c\/p\u003e\n\u003cp\u003eThe 600mm cable length allows the isolator to sit between devices on a desk, in a rack or in a car interior without requiring additional extension cables. The 3.5mm jack plug connects to the output of the source device, and the 3.5mm socket accepts a standard 3.5mm-to-3.5mm cable running to the amplifier or speaker. The compact 60 x 35mm body is CE-certified and housed in a lightweight plastic case that adds minimal bulk to the signal path.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e60 x 35mmØ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e130g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable : length\u003c\/td\u003e\n\u003ctd\u003e600mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat causes ground loop hum and how does this fix it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGround loop hum is a 50Hz buzz caused when two audio devices have different earth potentials in the mains supply, creating a voltage difference that passes through the audio cable. The AV:Link isolator breaks the ground connection using a passive audio transformer, allowing the signal through while blocking the DC voltage difference that causes the hum.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need batteries or external power?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The isolator is entirely passive and works via transformer coupling. It requires no batteries, no mains power and no configuration — simply plug it inline and the hum disappears.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it affect audio quality?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTransformer-based isolators can introduce minor high-frequency roll-off and a small reduction in overall level compared to a direct connection. For most consumer audio applications (laptop to speakers, phone to car stereo) the difference is negligible and far preferable to the ground loop hum it eliminates.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat cable do I need to use with it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe isolator has a 3.5mm jack plug on one end and a 3.5mm socket on the other. You need a standard 3.5mm-to-3.5mm cable to run from the isolator's socket to your amplifier or powered speaker. Most users already own this cable.\u003c\/p\u003e","brand":"AVSL","offers":[{"title":"Default Title","offer_id":45313398374667,"sku":"201.087UK","price":8.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/201087UK_CO1_778359d6-e72d-47b1-8271-12be03e9d38d.jpg?v=1715192481","url":"https:\/\/niori.co.uk\/products\/av-link-ground-loop-isolator-3-5mm-jack-to-3-5mm-socket","provider":"Niori","version":"1.0","type":"link"}