{"product_id":"opera-callas-diva-floorstanding-speakers","title":"Opera Callas Diva Floorstanding Speakers","description":"\u003cp\u003eThe Opera Callas Diva brings the performance of Opera's flagship Grand Callas into a more compact floorstanding design, reaching down to 30Hz with 90dB sensitivity. This three-way speaker features premium Scan-Speak drivers throughout, including an 8-inch long-throw woofer, 7-inch midrange, and the signature rear-firing dipole system with dual out-of-phase tweeters for an immersive, three-dimensional soundstage.\u003c\/p\u003e\n\u003ch2 class=\"seo-h2\"\u003eKey Features of the Opera Callas Diva\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8\" Scan-Speak Long-Throw Woofer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAluminum cone with rubber surround in reflex-loaded configuration delivers deep, controlled bass to 30Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7\" Midrange Driver:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAnnealed polypropylene cone with phase plug and 12mm peak-to-peak linear displacement for exceptional vocal clarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScan-Speak 9700 Tweeter:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePremium 1-inch dome tweeter with symmetrized magnetic circuits and flux stabilization rings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNatural Dipole Rear Radiation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTwo rear-firing tweeters configured out-of-phase create a natural dipole effect for expansive soundstage depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Bass Response:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCloseable reflex port allows fine-tuning for different room acoustics and placement options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaped Front Panel:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOptimized geometry enables \"close listening\" from approximately 1.5 meters for intimate musical experiences.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"seo-h2\"\u003eThe Callas Line from Opera Loudspeakers\u003c\/h2\u003e\n\u003cp\u003eOpera's Callas series represents the pinnacle of their speaker design, named after the legendary soprano Maria Callas. Each Callas speaker features the distinctive rear-firing dipole system: two additional tweeters arranged in a natural dipole configuration that adds depth and spatial information to the soundstage. The result is a listening experience that transcends typical box speakers, approaching the openness of panel designs while maintaining the dynamic punch of traditional cone drivers.\u003c\/p\u003e\n\u003ch2 class=\"seo-h2\"\u003eThree-Way Driver Topology\u003c\/h2\u003e\n\u003cp\u003eThe Callas Diva employs a true three-way configuration with dedicated drivers for bass, midrange, and treble. The 8-inch Scan-Speak woofer features an aluminum cone and long-throw motor structure, loaded in a reflex enclosure for extended bass response. The 7-inch midrange uses an annealed polypropylene cone with phase plug, offering 12mm of linear excursion for distortion-free reproduction of vocals and instruments. The Scan-Speak 9700 tweeter handles frequencies above 2kHz with symmetrized magnetic circuits eliminating flux modulation distortion.\u003c\/p\u003e\n\u003ch2 class=\"seo-h2\"\u003eNatural Dipole Rear Radiation System\u003c\/h2\u003e\n\u003cp\u003eBehind the Callas Diva, two additional tweeters fire rearward in a natural dipole arrangement. These tweeters are wired out of phase with each other, creating a figure-eight radiation pattern that mimics the behavior of planar and electrostatic speakers. An independent crossover filter allows adjustment of the rear tweeter level to optimize the soundstage for different room acoustics and listener preferences. The result is a three-dimensional presentation with depth, width, and height that conventional forward-firing speakers struggle to achieve.\u003c\/p\u003e\n\u003ch2 class=\"seo-h2\"\u003eRoom Adaptation and Placement\u003c\/h2\u003e\n\u003cp\u003eThe Callas Diva offers remarkable flexibility in room placement. The shaped front panel enables nearfield listening from as close as 1.5 meters, while the adjustable rear tweeters and closeable bass port accommodate everything from small studios to larger living spaces. For rooms with reflective rear walls, reducing the rear tweeter level tames excess ambience. In well-treated spaces, running them at full level maximizes the dipole effect for concert-hall depth.\u003c\/p\u003e\n\u003ch2 class=\"seo-h2\"\u003eSystem Matching Recommendations\u003c\/h2\u003e\n\u003cp\u003eWith 90dB sensitivity and 4 ohm nominal impedance (3.2 ohm minimum), the Callas Diva rewards quality amplification. The speakers handle up to 240 watts, making them suitable partners for everything from refined tube amplifiers to high-current solid-state designs.\u003c\/p\u003e\n\u003ch2 class=\"seo-h2\"\u003eOpera Callas Diva Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-way floorstanding speaker with rear dipole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWoofer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\" Scan-Speak, aluminum cone, long-throw, reflex-loaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMidrange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\" annealed polypropylene cone with phase plug, 12mm linear displacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFront Tweeter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\" Scan-Speak 9700 dome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRear Tweeters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 x tweeters in natural dipole configuration (out-of-phase)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30Hz - 25,000Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90 dB (2.83V\/1m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.2 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCrossover Frequencies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200Hz \/ 2,000Hz (12dB\/octave slopes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e240W (without clipping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (L x W x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e53.5 x 37 x 116 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e65 kg each (including metal base)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinishes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMahogany, Walnut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Opera","offers":[{"title":"Lacquered Walnut","offer_id":57558814032245,"sku":null,"price":12182.95,"currency_code":"EUR","in_stock":true},{"title":"Mahogany Veneer","offer_id":57558814065013,"sku":null,"price":12182.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2222\/0805\/files\/05_mahogany_rear.webp?v=1788882556","url":"https:\/\/www.kronosav.com\/en-ie\/products\/opera-callas-diva-floorstanding-speakers","provider":"Kronos AV","version":"1.0","type":"link"}