{"product_id":"ground-zero-audio-ultra","title":"Ground Zero Audio Ultra","description":"\u003cp\u003eT-30\u003c\/p\u003e\n\u003cp\u003eULTRA speakers are designed for the most demanding music lover.\u003c\/p\u003e\n\u003cp\u003eCarefully built by hand with the best materials and selected in pairs, they are delivered in fine wooden boxes.\u003c\/p\u003e\n\u003cp\u003eThe mid-bass driver ULTRA K-165 uses a high-tech fabric cone “Made in Germany” in conjunction with linear suspension and a narrow-tolerance copper voice coil with a linearized NEO motor. Built in a filigree aluminum basket for optimal air flow, these are the ingredients for outstanding neutrality and sound quality.\u003c\/p\u003e\n\u003cp\u003eThe tweeter ULTRA T-30 with its 30mm coated silk dome is characterized by a particularly low resonance frequency and extreme neutrality. The linearized NEO magnet system with the complex rear ventilation of the cone in the solid aluminum housing enables the wonderfully spatial and precise audio reproduction with an extremely wide frequency range.\u003c\/p\u003e\n\u003ch4\u003e150 watts max\u003c\/h4\u003e\n\u003cp\u003e30 mm \/ 1.18″ ultra-high-end soft dome tweeter with precision-coated textile diaphragm and CNC manchined aluminum chamber\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e30 mm \/ 1.18″ ultra-high-end tweeter\u003c\/li\u003e\n\u003cli\u003eTightly-tolerated technical parameters\u003c\/li\u003e\n\u003cli\u003eVented voice coil former reducing distortion\u003c\/li\u003e\n\u003cli\u003eLightweight CCA voice coil improving efficiency\u003c\/li\u003e\n\u003cli\u003eParticular dome for pressure balancing\u003c\/li\u003e\n\u003cli\u003eMachined aluminum chamber with wave diffuser\u003c\/li\u003e\n\u003cli\u003eGZ-design wave-guide face plate\u003c\/li\u003e\n\u003cli\u003eHigh-efficient neodymium motor\u003c\/li\u003e\n\u003cli\u003eDocumented final technical inspection\u003c\/li\u003e\n\u003cli\u003eWooden box packaging \/ in matching pairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003eUltra-high-end tweeter\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e30 mm \/ 1.18″\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Handling (RMS\/max.)\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e100 \/ 150 Watts\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpedance\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e4 Ohms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEfficiency\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e82 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency Response\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e1000 Hz – 26 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoice Coil\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003eCCA\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMembran Layout\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003ecoated textile\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Ø\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e60 mm \/ 2.36″\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Depth\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e41 mm \/ 1.61″\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResonance Frequency (Fs)\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e500 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003ek-165\u003c\/p\u003e\n\u003ch2\u003e\n\u003cspan\u003eUltra \u003c\/span\u003eSpeaker Components\u003c\/h2\u003e\n\u003cdiv class=\"cat-description ultra-en\"\u003e\n\u003cdiv class=\"ultra-desc\"\u003e\n\u003cp\u003eULTRA speakers are designed for the most demanding music lover.\u003c\/p\u003e\n\u003cp\u003eCarefully built by hand with the best materials and selected in pairs, they are delivered in fine wooden boxes.\u003c\/p\u003e\n\u003cp\u003eThe mid-bass driver ULTRA K-165 uses a high-tech fabric cone “Made in Germany” in conjunction with linear suspension and a narrow-tolerance copper voice coil with a linearized NEO motor. Built in a filigree aluminum basket for optimal air flow, these are the ingredients for outstanding neutrality and sound quality.\u003c\/p\u003e\n\u003cp\u003eThe tweeter ULTRA T-30 with its 30mm coated silk dome is characterized by a particularly low resonance frequency and extreme neutrality. The linearized NEO magnet system with the complex rear ventilation of the cone in the solid aluminum housing enables the wonderfully spatial and precise audio reproduction with an extremely wide frequency range.\u003c\/p\u003e\n\u003ch4\u003e160 watts max\u003c\/h4\u003e\n\u003cp\u003e165 mm \/ 6.5″ ultra-high-end midwoofer with airflow-optimized spokes and lightweight carbon-fleece cone\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUltra-high-end 165 mm \/ 6.5” midwoofer\u003c\/li\u003e\n\u003cli\u003eTightly-tolerated technical parameters\u003c\/li\u003e\n\u003cli\u003eLightweight carbon-fleece sandwich cone\u003c\/li\u003e\n\u003cli\u003eHigh-excursion linear moving rubber surround\u003c\/li\u003e\n\u003cli\u003eVented voice coil former reducing distortion\u003c\/li\u003e\n\u003cli\u003eRound CCA wire voice coil increasing power handling\u003c\/li\u003e\n\u003cli\u003eAirflow-optimized aluminum cast spokes\u003c\/li\u003e\n\u003cli\u003eDocumented final technical inspection\u003c\/li\u003e\n\u003cli\u003eWooden box packaging \/ in matching pairs\u003c\/li\u003e\n\u003cli\u003eGZ ULTRA 165-GRILL protection grills available separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003eUltra-high-end midwoofer\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e165 mm \/ 6.50″\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Handling (RMS\/max.)\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e100 \/ 160 Watts\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpedance\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e4 Ohms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEfficiency\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e87 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency Response\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e45 Hz – 5000 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoice Coil\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e32,5 mm \/ 1.28″\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMembran Layout\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003eCarbon-fleece sandwich\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Ø\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e147 mm \/ 5.79″\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Depth\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e67 mm \/ 2.64″\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResonance Frequency (Fs)\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e43 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003em-80\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch1\u003eUltra\u003c\/h1\u003e\n\u003cdiv class=\"cat-description\"\u003e\n\u003cp\u003e\u003cstrong\u003eREFERENCE ULTRA SERIES – Ultra-High-End\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAfter collecting detailed experience in SQ performance and general in-car audio reproduction for more than 25 years during the development of loudspeakers, subwoofers and amplifiers for highly demanding customers and having launched a wide range of car audio products used for sound quality competitions all over the world, GROUND ZERO had started to take advantage of all these gathered skills devising a very new and super high-end product line. For the most sophisticated demands, GROUND ZERO introduces an extraordinary two-channel amplifier and matching loudspeakers now! REFERENCE ULTRA series products are developed by highly attentive engineers from England, Sweden and Germany creating products for the most demanding customers without accepting any compromise in overall quality and SQ performance.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cspan\u003eUltra \u003c\/span\u003eSpeaker Components\u003c\/h2\u003e\n\u003cdiv class=\"cat-description ultra-en\"\u003e\n\u003cdiv class=\"ultra-desc\"\u003e\n\u003cp\u003eULTRA speakers are designed for the most demanding music lover.\u003c\/p\u003e\n\u003cp\u003eCarefully built by hand with the best materials and selected in pairs, they are delivered in fine wooden boxes.\u003c\/p\u003e\n\u003cp\u003eThe mid-bass driver ULTRA K-165 uses a high-tech fabric cone “Made in Germany” in conjunction with linear suspension and a narrow-tolerance copper voice coil with a linearized NEO motor. Built in a filigree aluminum basket for optimal air flow, these are the ingredients for outstanding neutrality and sound quality.\u003c\/p\u003e\n\u003cp\u003eThe tweeter ULTRA T-30 with its 30mm coated silk dome is characterized by a particularly low resonance frequency and extreme neutrality. The linearized NEO magnet system with the complex rear ventilation of the cone in the solid aluminum housing enables the wonderfully spatial and precise audio reproduction with an extremely wide frequency range.\u003c\/p\u003e\n\u003ch4\u003e110 watts max\u003c\/h4\u003e\n\u003cp\u003e80 mm \/ 3.15″ ultra-high-end midrange speaker with airflow-optimized basket and high-tech Kevlar® cone\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e80 mm \/ 3.15″ Ultra-high-end midrange speaker\u003c\/li\u003e\n\u003cli\u003eTightly-tolerated technical parameters\u003c\/li\u003e\n\u003cli\u003eHigh-tech Kevlar® cone\u003c\/li\u003e\n\u003cli\u003eLinear moving NBR surround\u003c\/li\u003e\n\u003cli\u003eVented voice coil former reducing distortion\u003c\/li\u003e\n\u003cli\u003eRound CCA wire voice coil increasing power handling\u003c\/li\u003e\n\u003cli\u003eOptimized motor and voice coil ventilation\u003c\/li\u003e\n\u003cli\u003eDocumented final technical inspection\u003c\/li\u003e\n\u003cli\u003eWooden box packaging \/ in matching pairs\u003c\/li\u003e\n\u003cli\u003eIncl. high-quality mounting ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"has-text-align-center\" data-align=\"center\"\u003eType\u003c\/th\u003e\n\u003ctd\u003eUltra-high-end midrange speaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"has-text-align-center\" data-align=\"center\"\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e80 mm \/ 3.15″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"has-text-align-center\" data-align=\"center\"\u003ePower handling (RMS\/max.)\u003c\/th\u003e\n\u003ctd\u003e70 \/ 110 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"has-text-align-center\" data-align=\"center\"\u003eImpedance\u003c\/th\u003e\n\u003ctd\u003e4 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"has-text-align-center\" data-align=\"center\"\u003eEfficiency\u003c\/th\u003e\n\u003ctd\u003e88 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"has-text-align-center\" data-align=\"center\"\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e150 Hz – 15 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"has-text-align-center\" data-align=\"center\"\u003eVoice coil\u003c\/th\u003e\n\u003ctd\u003eCCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"has-text-align-center\" data-align=\"center\"\u003eCone\u003c\/th\u003e\n\u003ctd\u003eKevlar® \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"has-text-align-center\" data-align=\"center\"\u003eMounting Ø\u003c\/th\u003e\n\u003ctd\u003e76.5 mm \/ 3.01″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"has-text-align-center\" data-align=\"center\"\u003e\u003cstrong\u003eBolt circle Ø\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e87 mm \/ 3.43″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"has-text-align-center\" data-align=\"center\"\u003eMounting depth\u003c\/th\u003e\n\u003ctd\u003e42 mm \/ 1.65″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"has-text-align-center\" data-align=\"center\"\u003eResonance frequency (Fs)\u003c\/th\u003e\n\u003ctd\u003e127 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"GROUND ZERO","offers":[{"title":"GZ ULTRA T-30","offer_id":51865558647069,"sku":null,"price":3499.99,"currency_code":"USD","in_stock":true},{"title":"GZ ULTRA K-165","offer_id":51865558679837,"sku":null,"price":3499.99,"currency_code":"USD","in_stock":true},{"title":"GZ ULTA M-80","offer_id":51865558712605,"sku":null,"price":1999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/8525\/5965\/files\/GZ-ULTRA-T-30_3_720x_ce2f5e60-b591-4627-bc49-a677e056437a.webp?v=1781201458","url":"https:\/\/shopaudioxtc.com\/products\/ground-zero-audio-ultra","provider":"Audio XTC","version":"1.0","type":"link"}