{"product_id":"ground-zero-ultra-m-80","title":"Ground Zero ULTRA M-80","description":"\u003cp\u003eGENERAL SPECIFICATIONS:\u003c\/p\u003e\n\n\u003cp\u003eSpeaker type 80 mm \/ 3.15” SQ midrange speaker\u003cbr\u003e\nNominal impedance 4 ohms\u003cbr\u003e\nFrequency Response 150 Hz – 15 kHz\u003cbr\u003e\nBasket type Multipiece machined aluminum\u003cbr\u003e\nCone material High-Tech Kevlar®\u003cbr\u003e\nMotor High-grade Neodymium\u003cbr\u003e\nVoice coil diameter 20 mm \/ 0.79”\u003cbr\u003e\nMax. excursion (p2p)- Xmax 7 mm \/ 0.28“\u003cbr\u003e\nPower handling (RMS) 70 Watts\u003cbr\u003e\nPower handling (max) 110 Watts\u003cbr\u003e\nOuter diameter 93,8 mm \/ 3.69”\u003cbr\u003e\nMounting diameter 76,5 mm \/ 3.01”\u003cbr\u003e\nMounting depth 42 mm \/ 1.65”\u003c\/p\u003e\n\n\u003cp\u003ePARAMETERS:\u003c\/p\u003e\n\n\u003cp\u003eResonance frequency - fs 127 Hz\u003cbr\u003e\nEfficiency - SPL 88 dB\u003cbr\u003e\nDC voice coil resistance - Re 3.5 ohms\u003cbr\u003e\nDriver´s Q (nonelectrical losses only) - Qms 6.76\u003cbr\u003e\nDriver´s Q (at fs) - Qes 0.43\u003cbr\u003e\nTotal driver´s Q - Qts 0.40\u003cbr\u003e\nAir vol. compliant to driver´s suspension - Vas 0.9 L\u003cbr\u003e\nMoving mass incl. acoustic load - Mms 3.15 g\u003cbr\u003e\nProduct of magnetic flux density - BL 4.52 N\/A\u003cbr\u003e\nMech. resistance of driver´s suspension - Rms 0.37 kg\/s\u003cbr\u003e\nCompliance of driver´s suspension - Cms 0.50 mm\/N\u003cbr\u003e\nVoice coil inductance - LE 0.04 mH\u003c\/p\u003e\n\n \u003cp\u003eFEATURES:\u003c\/p\u003e\n\n\u003cp\u003eUltra-high-end 80 mm \/ 3.15” midrange speaker\u003cbr\u003e\nTightly tolerated technical parameters\u003cbr\u003e\nHigh-Tech Kevlar® cone\u003cbr\u003e\nLinear moving NBR surround\u003cbr\u003e\nHigh-grade neodymium motor with copper cup\u003cbr\u003e\nVented voice coil former reducing distortion\u003cbr\u003e\nRound CCAW wire voice coil increasing highest efficiency\u003cbr\u003e\nFine-blasted, black anodized GZ-design basket from machined aluminum parts\u003cbr\u003e\nOptimized motor and voice coil ventilation\u003cbr\u003e\nAirflow-optimized aluminum cast spokes\u003cbr\u003e\nGold plated terminals\u003cbr\u003e\nDocumented final technical inspection\u003cbr\u003e\nWooden box packaging \/ in matching pairs\u003cbr\u003e\nNRG protection grills with aluminum ring\u003c\/p\u003e","brand":"GROUND ZERO","offers":[{"title":"Default Title","offer_id":53295126020434,"sku":"GZ ULTRA M-80","price":899.0,"currency_code":"EUR","in_stock":true}],"url":"https:\/\/audioritari.com\/products\/ground-zero-ultra-m-80","provider":"Audioritari","version":"1.0","type":"link"}