{"title":"Ground Zero Ultra Series | Exclusive at Masori | Developed in Germany","description":"\u003ch2\u003eGround Zero Ultra Series: High-end amplifiers for your ultimate car hi-fi experience – now available at a great price in the Masori car hi-fi online shop\u003c\/h2\u003e\n\u003cp\u003eThe Ground Zero Ultra series offers you amplifiers, speakers, and subwoofers at the highest level to significantly improve your car sound in BMW, VW, Mercedes, SEAT, or Opel. You benefit from a wide selection of powerful components that cover an enormous sound spectrum thanks to precise manufacturing. Whether you just want to enhance the bass or integrate a complete car hi-fi setup – the Ultra series is ideal for individual sound solutions.\u003c\/p\u003e\n\u003ch3\u003ePerformance Features and Technical Highlights of the Ground Zero Ultra Components\u003c\/h3\u003e\n\u003cp\u003eIf you are looking for a high-end amplifier for your car, numerous specifications are important. The Ultra series offers excellent values that meet audiophile demands:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency range:\u003c\/strong\u003e Depending on the model, between 10 Hz and 40 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier principle:\u003c\/strong\u003e Analog or digital with up to 85% efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance per channel:\u003c\/strong\u003e Up to 2×250 watts RMS at 4 ohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping factor:\u003c\/strong\u003e Over 500 for clean and controlled bass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal-to-noise ratio:\u003c\/strong\u003e 100 dB and more for clear playback\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedances:\u003c\/strong\u003e Available in 2-ohm stable or 4-ohm versions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpecifically designed for ambitious car audio projects, the high-quality copper voice coils, delicate aluminum baskets, and precision-machined mounting rings ensure detailed reproduction across all frequency ranges – from intense deep bass to crystal-clear treble.\u003c\/p\u003e\n\u003ch4\u003eComparison Table: Typical Ultra Amplifiers at a Glance\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003ePower (RMS @4Ω)\u003c\/th\u003e\n\u003cth\u003eChannels\u003c\/th\u003e\n\u003cth\u003eFrequency response\u003c\/th\u003e\n\u003cth\u003eSpecial feature\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGZ ULTRA A-2\u003c\/td\u003e\n\u003ctd\u003e2×200 W\u003c\/td\u003e\n\u003ctd\u003e2-channel (dual mono)\u003c\/td\u003e\n\u003ctd\u003e15 Hz – 30 kHz\u003c\/td\u003e\n\u003ctd\u003eAnalog amplifier, separately adjustable channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGZ ULTRA A-4\u003c\/td\u003e\n\u003ctd\u003e4×125 W\u003c\/td\u003e\n\u003ctd\u003e4-channel\u003c\/td\u003e\n\u003ctd\u003e10 Hz – 35 kHz\u003c\/td\u003e\n\u003ctd\u003eHigh-bandwidth concept, plug \u0026amp; play capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGZ ULTRA A-1\u003c\/td\u003e\n\u003ctd\u003e1×600 W\u003c\/td\u003e\n\u003ctd\u003eMono\u003c\/td\u003e\n\u003ctd\u003e20 Hz – 200 Hz\u003c\/td\u003e\n\u003ctd\u003eSpecifically for high-power subwoofers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eSubwoofers and Speakers: Extensions for Your Car Sound\u003c\/h2\u003e\n\u003cp\u003eIn addition to the high-end amplifiers, Ground Zero also offers subwoofers and speakers in the Ultra series, which stand out thanks to linearized NEO drive systems and massively constructed membranes. Whether you're looking for an upgrade for an Opel Corsa or a complete solution for a BMW 3 Series – the versatility of the Ultra models ensures that every frequency range is optimally covered.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra Subwoofer:\u003c\/strong\u003e With 25 cm to 30 cm chassis and up to 1,000 W RMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMidrange driver (80 mm):\u003c\/strong\u003e High-tech fabric membrane \u0026amp; neodymium magnets for precise midrange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMidrange driver (165 mm):\u003c\/strong\u003e Aluminum cone for fast bass impulses and crisp mids\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTweeter (30 mm silk dome):\u003c\/strong\u003e Very fine resolution in the high-frequency range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe modular range allows any audio component to be freely combined. For plug \u0026amp; play solutions, some speaker sets already include suitable crossovers or adapter rings, so they can be installed in various vehicle models without much effort.\u003c\/p\u003e\n\u003ch2\u003eInstallation, Accessories, and Service for Maximum Performance\u003c\/h2\u003e\n\u003cp\u003eA professional installation is crucial to fully exploit the potential of car audio components. For more complex projects, it is advisable to consider special accessories:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGold-plated power and speaker cables\u003c\/li\u003e\n\u003cli\u003eHigh-quality RCA connections with low shielding resistance\u003c\/li\u003e\n\u003cli\u003eAlubutyl or insulation mats for vibration reduction\u003c\/li\u003e\n\u003cli\u003eAdapter cable sets for vehicle-specific plug \u0026amp; play installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhoever wants professional support when installing their car audio components can \u003ca href=\"https:\/\/masprori.com\/pages\/einbauservice\"\u003eInstallation service in Frankfurt Oder\u003c\/a\u003e beauftragen und erhält passgenaue Lösungen für sein Fahrzeug. Dort werden Lautsprecher, Verstärker und Subwoofer von Expert*innen installiert, die eine präzise Abstimmung auf die Fahrzeugakustik vornehmen.\u003c\/p\u003e\n\u003ch3\u003eExpert support and AI chatbot for individual questions\u003c\/h3\u003e\n\u003cp\u003eIf you are unsure which amplifier or speaker is optimal for your car, the \u003ca href=\"https:\/\/masprori.com\/pages\/faq-und-hilfe\"\u003eExpert Support\u003c\/a\u003e to the side. In addition, Masori offers an AI chatbot to check the compatibility of your components. This service makes selection easier by recommending suitable systems based on the provided vehicle data and answering technical questions.\u003c\/p\u003e\n\u003ch2\u003eVariations and Areas of Application: From Beginner to Audiophile\u003c\/h2\u003e\n\u003cp\u003eThe Ground Zero Ultra series is one of the most versatile car audio solutions, as it covers different power classes, sizes, and numbers of channels. Whether you want to subtly enhance the factory sound of a VW Golf or build a full-fledged car audio competition vehicle – in the Ultra series, you will always find suitable components.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBeginner:\u003c\/strong\u003e Compact 2-channel amplifier for easy retrofitting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced:\u003c\/strong\u003e 4-channel or 6-channel amplifiers for more complex multi-way systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePros:\u003c\/strong\u003e Dual mono configuration with separate power supply for ultimate channel separation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis series is especially ideal for lovers of detailed music reproduction, as even fine sound nuances are preserved thanks to the linearized NEO drive system. The optional water cooling of some amplifier models allows for high continuous loads without any thermal losses.\u003c\/p\u003e\n\u003ch2\u003eTips for Optimal Installation in the Vehicle\u003c\/h2\u003e\n\u003cp\u003eThe placement and orientation of speakers and subwoofers are essential for a coherent sound image. Tweeters should ideally be installed on the A-pillar or near the mirror to create a clear stereo stage. Additionally, bass speakers should be housed in sturdy doors or in the trunk:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal insulation:\u003c\/strong\u003e Reduces sheet metal vibrations and serves as a resonance chamber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrect phase position:\u003c\/strong\u003e Ensures clean overlap between bass, midrange, and treble\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier position:\u003c\/strong\u003e Keep cable runs short to reduce signal loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSettings on the DSP (Digital Sound Processor):\u003c\/strong\u003e Fine-tuning for correct timing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf difficulties arise during installation, the installation service can help to correctly set all parameters. The comprehensive range of accessories including cable materials, insulation, and adapters offers additional options to customize sound and power individually.\u003c\/p\u003e\n\u003ch2\u003eGround Zero Ultra Series: Your Car Audio Choice for Powerful Bass and Brilliant Highs\u003c\/h2\u003e\n\u003cp\u003eWith the Ground Zero Ultra series, you get top-quality car audio components that can be perfectly matched to meet the specific requirements of your vehicle. Performance data and designs are so diverse that you will find a suitable combination for every sound concept. Thanks to optional plug-and-play capable sets, you can even effortlessly create a rich soundscape in modern cars from Audi or Ford. The combination of well-thought-out technology and simple installation options convinces both beginners and experienced car audio enthusiasts.\u003c\/p\u003e\n\u003cp\u003eUse the handy \u003ca href=\"https:\/\/masprori.com\/pages\/faq-und-hilfe\"\u003eExpert Support\u003c\/a\u003e or improve the sound in your vehicle directly on site with the professional \u003ca href=\"https:\/\/masprori.com\/pages\/einbauservice\"\u003eInstallation service\u003c\/a\u003e. For even more inspiration, an audio blog also offers comprehensive tips on individual sound upgrades that will put your car in pole position acoustically.\u003c\/p\u003e","products":[{"product_id":"ground-zero-ultra-a-2-2-kanal-verstaerker","title":"Ultra A-2","description":"\u003cp\u003eThe Ultra A-2 from Ground Zero is an Ultra-High-End 2-Channel Amplifier with a symmetrical design. The technical features include a high-quality Swiss-made ELMA selector switch and exclusively manufactured MUNDORF audio capacitors. The device has rhodium-plated RCA sockets and an LED-lit Plexiglas base plate. There are two levels for the BIAS adjustment and four levels for the input sensitivity to choose from. Signal processing occurs without potentiometers and OPAs for a direct signal path. Additionally, the amplifier is prepared for optional water cooling.\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e2-Channel Amplifier\u003c\/li\u003e\n\u003cli\u003eSymmetrical design\u003c\/li\u003e\n\u003cli\u003eSwiss-made High-End ELMA selector switch\u003c\/li\u003e\n\u003cli\u003e2-stage selection for BIAS adjustment\u003c\/li\u003e\n\u003cli\u003e4-stage selection for input sensitivity\u003c\/li\u003e\n\u003cli\u003ePotentiometer-less and OPA-less signal path\u003c\/li\u003e\n\u003cli\u003eRhodium-plated RCA sockets\u003c\/li\u003e\n\u003cli\u003eMUNDORF audio capacitors\u003c\/li\u003e\n\u003cli\u003ePlexiglas base with LED lighting\u003c\/li\u003e\n\u003cli\u003ePrepared for water cooling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eOutput power at 4 Ohm: 2x 200 Watts RMS\u003c\/li\u003e\n\u003cli\u003eOutput power at 2 Ohm: 2x 330 Watts RMS\u003c\/li\u003e\n\u003cli\u003eOutput power at 1 Ohm: 2x 450 Watts RMS\u003c\/li\u003e\n\u003cli\u003eOutput power at 2 Ohm bridged: 1200 Watts\u003c\/li\u003e\n\u003cli\u003eSignal-to-Noise: over 120 dB\u003c\/li\u003e\n\u003cli\u003eFrequency response: 10 Hz – 80 kHz\u003c\/li\u003e\n\u003cli\u003eWidth: 250 mm\u003c\/li\u003e\n\u003cli\u003eLength: 502 mm\u003c\/li\u003e\n\u003cli\u003eHeight: 80 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ground Zero","offers":[{"title":"Default Title","offer_id":46568523596043,"sku":"ULTRA-A-2","price":5995.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/9478\/5927\/files\/ground-zero-ultra-a-2-2-kanal-verstarker-masori-kaufen.webp?v=1747996797"},{"product_id":"ground-zero-ultra-m-80-3-zoll-mitteltoener","title":"Ultra M-80","description":"\u003cp\u003eThe Ultra M-80 from Ground Zero is a 3-inch midrange speaker in ultra-high-end design with a diameter of 80 mm. It features a high-tech Kevlar diaphragm and an NBR surround for linear guidance. The power handling is 70 watts RMS and 110 watts maximum at an impedance of 4 ohms. To minimize distortion, a ventilated voice coil former is integrated. The voice coil is made of round CCA wire, and the system utilizes optimized drive and voice coil ventilation. The delivery is made in pairs, selected in a wooden packaging, including a high-quality mounting ring. A documented technical final inspection is included with each unit.\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e3-inch (8 cm) midrange speaker\u003c\/li\u003e\n\u003cli\u003eUltra-high-end design\u003c\/li\u003e\n\u003cli\u003eHigh-tech Kevlar diaphragm\u003c\/li\u003e\n\u003cli\u003eNBR surround with linear guidance\u003c\/li\u003e\n\u003cli\u003eVentilated voice coil former\u003c\/li\u003e\n\u003cli\u003eRound CCA voice coil wire\u003c\/li\u003e\n\u003cli\u003eOptimized drive and voice coil ventilation\u003c\/li\u003e\n\u003cli\u003eSelected in pairs in wooden packaging\u003c\/li\u003e\n\u003cli\u003eIncludes mounting ring\u003c\/li\u003e\n\u003cli\u003eDocumented technical final inspection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003ePower handling: 70 watts RMS\u003c\/li\u003e\n\u003cli\u003ePower handling: 110 watts max.\u003c\/li\u003e\n\u003cli\u003eImpedance: 4 ohms\u003c\/li\u003e\n\u003cli\u003eSensitivity: 88 dB\u003c\/li\u003e\n\u003cli\u003eFrequency response: 150 Hz – 15 kHz\u003c\/li\u003e\n\u003cli\u003eMounting diameter: 76.5 mm\u003c\/li\u003e\n\u003cli\u003eHole circle: 87 mm\u003c\/li\u003e\n\u003cli\u003eMounting depth: 42 mm\u003c\/li\u003e\n\u003cli\u003eResonance frequency (Fs): 127 Hz\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ground Zero","offers":[{"title":"Default Title","offer_id":46568774664459,"sku":"ULTRA-M80","price":1495.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/9478\/5927\/files\/ground-zero-ultra-m-80-3-8cm-mitteltoner-masori-kaufen.webp?v=1778658358"},{"product_id":"ground-zero-ultra-t-30-kalotten-hochtoener","title":"Ultra T-30","description":"\u003cp\u003eThe Ultra T-30 from Ground Zero is a 30 mm Ultra-High-End Dome Tweeter with a power handling of 100 Watts RMS and 150 Watts Maximum. The model features an impedance of 4 Ohms and covers a frequency range from 1000 Hz to 26 kHz. The technical construction includes a CNC-machined aluminum housing with an integrated diffuser as well as a GZ-design sound guide. A highly efficient neodymium drive powers the lightweight CCA voice coil, while the diaphragm is made of coated textile fabric. To reduce distortion, a ventilated voice coil former is integrated. The system is characterized by tightly tolerated technical parameters and a special acoustic damping for pressure distribution. The delivery is made as a pair-selected set in a wooden packaging including documented technical final inspection.\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eDome Tweeter\u003c\/li\u003e\n\u003cli\u003e30 mm diameter\u003c\/li\u003e\n\u003cli\u003ePower handling: 100 Watts RMS\u003c\/li\u003e\n\u003cli\u003ePower handling: 150 Watts Max\u003c\/li\u003e\n\u003cli\u003eImpedance: 4 Ohms\u003c\/li\u003e\n\u003cli\u003eDiaphragm made of coated textile fabric\u003c\/li\u003e\n\u003cli\u003eCNC-machined aluminum housing\u003c\/li\u003e\n\u003cli\u003eIntegrated diffuser\u003c\/li\u003e\n\u003cli\u003eHighly efficient neodymium drive\u003c\/li\u003e\n\u003cli\u003eCCA voice coil\u003c\/li\u003e\n\u003cli\u003eVentilated voice coil former\u003c\/li\u003e\n\u003cli\u003eGZ-design sound guide\u003c\/li\u003e\n\u003cli\u003eAcoustic damping for pressure distribution\u003c\/li\u003e\n\u003cli\u003ePair-selected in wooden packaging\u003c\/li\u003e\n\u003cli\u003eDocumented technical final inspection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003eTechnical Data\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eEfficiency: 82 dB\u003c\/li\u003e\n\u003cli\u003eFrequency response: 1000 Hz – 26 kHz\u003c\/li\u003e\n\u003cli\u003eInstallation diameter: 60 mm\u003c\/li\u003e\n\u003cli\u003eInstallation depth: 41 mm\u003c\/li\u003e\n\u003cli\u003eResonance frequency (Fs): 500 Hz\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ground Zero","offers":[{"title":"Default Title","offer_id":46568922185995,"sku":"ULTRA-T-30","price":1995.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/9478\/5927\/files\/ground-zero-ultra-t-30-kalotten-hochtoner-masori-kaufen.webp?v=1778658366"},{"product_id":"ground-zero-ultra-k-165-6-5-zoll-tiefmitteltoener","title":"Ultra K-165","description":"\u003cp\u003eThe Ultra K-165 from Ground Zero is a 6.5-inch mid-bass speaker with a power handling of 100 Watts RMS and 160 Watts Max. The device has an impedance of 4 Ohms and an efficiency of 87 dB. The technical design includes a lightweight carbon fiber sandwich membrane as well as a highly flexible rubber surround with linear guidance. A ventilated voice coil former and a round voice coil wire made of CCA are integrated. The enclosure is equipped with flow-optimized spokes made of aluminum die-cast. The voice coil has a diameter of 32.5 mm. The frequency response ranges from 45 Hz to 5000 Hz.\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e6.5-inch (16.5 cm) mid-bass speaker\u003c\/li\u003e\n\u003cli\u003eLightweight carbon fiber sandwich membrane\u003c\/li\u003e\n\u003cli\u003eHighly flexible rubber surround with linear guidance\u003c\/li\u003e\n\u003cli\u003eVentilated voice coil former\u003c\/li\u003e\n\u003cli\u003eRound voice coil wire made of CCA\u003c\/li\u003e\n\u003cli\u003eFlow-optimized spokes made of aluminum die-cast\u003c\/li\u003e\n\u003cli\u003eTightly tolerated technical parameters\u003c\/li\u003e\n\u003cli\u003eDocumented technical final inspection\u003c\/li\u003e\n\u003cli\u003eWood packaging and selected in pairs\u003c\/li\u003e\n\u003cli\u003eGZ ULTRA 165-GRILL protective grille sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003ePower handling: 100 Watts RMS\u003c\/li\u003e\n\u003cli\u003ePower handling: 160 Watts Max\u003c\/li\u003e\n\u003cli\u003eImpedance: 4 Ohms\u003c\/li\u003e\n\u003cli\u003eEfficiency: 87 dB\u003c\/li\u003e\n\u003cli\u003eFrequency response: 45 Hz – 5000 Hz\u003c\/li\u003e\n\u003cli\u003eVoice coil diameter: 32.5 mm\u003c\/li\u003e\n\u003cli\u003eMounting diameter: 147 mm\u003c\/li\u003e\n\u003cli\u003eMounting depth: 67 mm\u003c\/li\u003e\n\u003cli\u003eResonance frequency (Fs): 43 Hz\u003c\/li\u003e\n\u003cli\u003eDiameter: 165 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ground Zero","offers":[{"title":"Default Title","offer_id":46568928346379,"sku":"ULTRA-K-165","price":1995.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/9478\/5927\/files\/ground-zero-ultra-k-165-6_5-165cm-tiefmitteltoner-masori-kaufen.webp?v=1778658387"},{"product_id":"ground-zero-ultra-80-grill-lautsprechergitter","title":"Ultra 80-GRILL","description":"\u003cp\u003eThe Ultra 80-GRILLE from Ground Zero is a Speaker Grille with a high-gloss polished surface. It features the Hexagon NRG protective grille in GZ design and comes with an aluminum mounting ring. The construction is compatible with various Ground Zero midrange speakers such as the GZ ULTRA M-80, GZPM 80SQ-C, GZNM 80SQ-K, GZUM 80SQ, and GZHM 80. A set consists of one grille and one ring. The outer diameter is 105 mm, while the installation diameter is 100 mm. The installation depth is specified as 7 mm. For mounting, a speaker hole circle of 86 mm with four drill holes is provided.\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eSpeaker Grille\u003c\/li\u003e\n\u003cli\u003eHigh-gloss polished surface\u003c\/li\u003e\n\u003cli\u003eGZ design Hexagon NRG protective grille\u003c\/li\u003e\n\u003cli\u003eAluminum mounting ring\u003c\/li\u003e\n\u003cli\u003eCompatible with Ground Zero midrange speakers\u003c\/li\u003e\n\u003cli\u003eSet consisting of 1x grille and 1x ring\u003c\/li\u003e\n\u003cli\u003eOuter diameter: 105 mm\u003c\/li\u003e\n\u003cli\u003eInstallation diameter: 100 mm\u003c\/li\u003e\n\u003cli\u003eInstallation depth: 7 mm\u003c\/li\u003e\n\u003cli\u003eSpeaker hole circle: 86 mm (4x)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ground Zero","offers":[{"title":"Default Title","offer_id":46568938045707,"sku":"ULTRA-80-GRILL","price":69.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/9478\/5927\/files\/ground-zero-ultra-80-grill-lautsprechergitter-masori-kaufen.webp?v=1747996890"},{"product_id":"ground-zero-ultra-165-grill-lautsprechergitter","title":"Ultra 165-GRILL","description":"\u003cp\u003eThe Ultra 165-GRILLE from Ground Zero is a Speaker Grille with a high-gloss polished surface. The construction includes an aluminum mounting ring and the GZ-design Hexagon NRG protective grille. An O-ring insert ensures the hold of the protective grille, while two-way logo plates allow for custom alignment. The design is specified as non-resonant. Compatibility extends to the models GZ ULTRA K-165, GZHK 165, GZUK 165SQ, GZNK 165SQ-K, and GZPK 165SQ-C. The weight per piece without the grille is 190 g.\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eProduct type: Speaker Grille\u003c\/li\u003e\n\u003cli\u003eManufacturer: Ground Zero\u003c\/li\u003e\n\u003cli\u003eHigh-gloss polished surface\u003c\/li\u003e\n\u003cli\u003eGZ-design Hexagon NRG protective grille\u003c\/li\u003e\n\u003cli\u003eAluminum mounting ring\u003c\/li\u003e\n\u003cli\u003eO-ring insert for grille hold\u003c\/li\u003e\n\u003cli\u003eTwo-way logo plates for alignment\u003c\/li\u003e\n\u003cli\u003eNon-resonant design\u003c\/li\u003e\n\u003cli\u003eCompatible with GZ ULTRA K-165\u003c\/li\u003e\n\u003cli\u003eCompatible with GZHK 165, GZUK 165SQ, GZNK 165SQ-K, GZPK 165SQ-C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eOuter diameter: 184 mm\u003c\/li\u003e\n\u003cli\u003eInstallation diameter: 176 mm\u003c\/li\u003e\n\u003cli\u003eInstallation depth: 12 mm\u003c\/li\u003e\n\u003cli\u003eSpeaker hole circle: 156.5 mm (8x)\u003c\/li\u003e\n\u003cli\u003eWeight without grille: 190 g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ground Zero","offers":[{"title":"Default Title","offer_id":46569002500363,"sku":"ULTRA-165-GRILL","price":249.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/9478\/5927\/files\/ground-zero-ultra-165-grill-lautsprechergitter-masori-kaufen.webp?v=1747996903"}],"url":"https:\/\/masprori.com\/en\/collections\/ground-zero-ultra-high-end-speaker-amplifier.oembed","provider":"Masori | Shop","version":"1.0","type":"link"}