{"product_id":"double-helix-combination-kand-k","title":"K\u0026K Double Helix Hum-Cancelling Soundhole Pickup - Pure Mini Upgrade Kit","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e\u003cem\u003ePlease note - this upgrade kit is designed to be used with a K\u0026amp;K Pure Mini for a great dual-source pickup system. This kit does not include the Pure Mini element, which must be purchased separately.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe K\u0026amp;K Sound Double Helix is a premium passive hum-cancelling dual-coil soundhole pickup for steel-string acoustic guitar - a genuinely sophisticated amplification solution that delivers K\u0026amp;K's signature natural acoustic quality with the practical versatility of two distinct tonal voices accessible via a simple switch. Designed to work both as a standalone pickup and in combination with K\u0026amp;K's Pure Pickup system, the Double Helix brings the kind of tonal flexibility to the acoustic-electric player that has long been the exclusive domain of magnetic electric guitar pickups, all achieved in a completely passive, battery-free design that requires no internal electronics or permanent modification to the guitar.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe Double Helix's defining feature is its unique tone switch offering two settings - GLOSS, a fine, bright, and naturally acoustic voice with a shimmering high-end character and beautiful warm midrange ideal for fingerpicking and lighter strumming contexts; and STEAM, a fuller, louder, and more substantial voice with superb feedback rejection suited to driving acoustic tone to the front of a mix in demanding live performance settings. A phase switch allows the Double Helix to harmonise perfectly with any existing pickup already installed in the guitar, making it an ideal upgrade partner for the K\u0026amp;K Pure Pickup system. Both settings are fully hum-cancelling. An external endpin adapter is available separately for players who prefer not to install a new endpin jack. Ideal for performing singer-songwriters, acoustic session players, and any guitarist who wants a top-of-the-line passive soundhole pickup with genuine tonal versatility and K\u0026amp;K's celebrated natural acoustic character.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eDual-coil hum-cancelling design delivers K\u0026amp;K's signature natural, transparent acoustic tone free from the hum and interference that affects single-coil soundhole pickups - in a completely passive, battery-free design with no internal electronics required.\u003c\/li\u003e\n\u003cli\u003eGLOSS tone setting provides a fine, bright, and naturally acoustic voice with shimmering high-end character and beautiful warm midrange - ideal for fingerpicking, light strumming, and acoustic playing contexts where natural tone is paramount.\u003c\/li\u003e\n\u003cli\u003eSTEAM tone setting provides a fuller, louder, and more substantial voice with superb feedback rejection - ideal for driving the guitar's tone to the front of a live mix or competing in louder ensemble contexts.\u003c\/li\u003e\n\u003cli\u003ePhase switch allows the Double Helix to harmonise perfectly with any existing pickup already installed in the guitar, making it an ideal and sonically cohesive upgrade partner for the K\u0026amp;K Pure Pickup system.\u003c\/li\u003e\n\u003cli\u003eFully passive design requires no battery and no internal electronics - a plug-and-play amplification solution that delivers top-of-the-line performance without any permanent alteration to the guitar.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YXTRmptQCws?si=_MNZzWArw4SeYAs0\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/O0TFgL0Laq8?si=kaWw2cegN11uRCZG\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eType: Hum-cancelling dual-coil soundhole pickup\u003c\/li\u003e\n\u003cli\u003eCompatible instruments: Steel-string acoustic guitar\u003c\/li\u003e\n\u003cli\u003eTone settings: GLOSS (bright, natural acoustic), STEAM (full, loud, feedback-resistant)\u003c\/li\u003e\n\u003cli\u003ePhase switch: Yes\u003c\/li\u003e\n\u003cli\u003eHum-cancelling: Yes (both settings)\u003c\/li\u003e\n\u003cli\u003ePower: Passive - no battery required\u003c\/li\u003e\n\u003cli\u003eInstallation: Soundhole-mounted\u003c\/li\u003e\n\u003cli\u003eEndpin jack: External endpin adapter available separately\u003c\/li\u003e\n\u003cli\u003eCompatible with: K\u0026amp;K Pure Pickup (as upgrade\/complement)\u003c\/li\u003e\n\u003cli\u003eManufacturer: K\u0026amp;K Sound Systems Inc (handcrafted, since 1984)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K\u0026K","offers":[{"title":"Default Title","offer_id":48431825322205,"sku":"doublehelixcombinakk","price":799.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0367\/8045\/files\/doublehelix-solo.png?v=1787704381","url":"https:\/\/www.acousticcentre.com.au\/products\/double-helix-combination-kand-k","provider":"Acoustic Centre","version":"1.0","type":"link"}