{"product_id":"rcf-l12l750-mid-bass","title":"RCF L12L750 Mid-Bass","description":"\u003cdiv\u003eVery high efficiency and extended linearity are special features of this mid-bass transducer. \u003c\/div\u003e \u003cdiv\u003e \u003c\/div\u003e \u003cdiv\u003eVery efficient heat dissipation is ensured by a radiator that is part of the basket design. The aluminum voice coil offer a properly aligned Q factor and a very high sensitivity. A specially designed Shallow Triple-roll surround guarantee a very low midrange distortion. Fiberglass former voice coil, polycotton suspensions and treated cone provide the very high power handling.\u003c\/div\u003e \u003cdiv\u003e \u003c\/div\u003e \u003cdiv\u003e\u003cspan style=\"font-weight: bold; text-decoration: underline;\"\u003eFeatures\u003c\/span\u003e\u003c\/div\u003e \u003cdiv\u003e \u003cul\u003e \u003cli\u003e4-inch, fiberglass former, edgewound aluminum voice coil\u003c\/li\u003e \u003cli\u003e700W continuous program power handling\u003c\/li\u003e \u003cli\u003e101 dB Sensitivity\u003c\/li\u003e \u003cli\u003e60 Hz – 2 kHz Frequency range\u003c\/li\u003e \u003cli\u003eShaped Shallow Triple-roll damped surround\u003c\/li\u003e \u003cli\u003eInverted dust cap\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003cdiv\u003e\u003cspan style=\"font-weight: bold; text-decoration: underline;\"\u003eSpecifications\u003c\/span\u003e\u003c\/div\u003e \u003cdiv\u003e \u003cul\u003e \u003cli\u003eNominal Diameter: 300 \/ 12 mm\/inch\u003c\/li\u003e \u003cli\u003eRated Impedance: 8 Ω\u003c\/li\u003e \u003cli\u003eProgram Power: 700 W AES\u003c\/li\u003e \u003cli\u003ePower handling capacity: 350 W AES\u003c\/li\u003e \u003cli\u003eSensitivity: 101 dB\u003c\/li\u003e \u003cli\u003eFrequency Range: 60 Hz ÷ 2000 Hz\u003c\/li\u003e \u003cli\u003eEffective Piston Diameter: 260 \/ 10.2 mm\/inch\u003c\/li\u003e \u003cli\u003eMax Excursion Before Damage (peak to peak): 40 \/ 1.6 mm\/inch\u003c\/li\u003e \u003cli\u003eMinimum Impedance: 7.2 Ω\u003c\/li\u003e \u003cli\u003eVoice Coil Diameter: 100 \/ 4 mm\/inch\u003c\/li\u003e \u003cli\u003eVoice Coil Material: Aluminum\u003c\/li\u003e \u003cli\u003eVoice Coil Winding Depth: 12 \/ 0.5 mm\/inch\u003c\/li\u003e \u003cli\u003eNumber of layers: 1\u003c\/li\u003e \u003cli\u003eKind of layer: outside\u003c\/li\u003e \u003cli\u003eTop Plate Thickness: 10 \/ 0.4 mm\/inch\u003c\/li\u003e \u003cli\u003eCone Material: No pressed pulp\u003c\/li\u003e \u003cli\u003eCone Design: Curved\u003c\/li\u003e \u003cli\u003eSurround Material: Polycotton\u003c\/li\u003e \u003cli\u003eSurround Design: Triple roll\u003c\/li\u003e \u003cli\u003eResonance frequency: 62 Hz\u003c\/li\u003e \u003cli\u003eDC resistance: 5.2Ω\u003c\/li\u003e \u003cli\u003eMechanical factor: 4.1\u003c\/li\u003e \u003cli\u003eElectrical factor: 0.29\u003c\/li\u003e \u003cli\u003eTotal factor: 0.27\u003c\/li\u003e \u003cli\u003eBL Factor: 18.8 T · m\u003c\/li\u003e \u003cli\u003eEffective Moving Mass: 50 g\u003c\/li\u003e \u003cli\u003eEquivalent Cas air load: 52 liters\u003c\/li\u003e \u003cli\u003eEffettive piston area: 0.053 m²\u003c\/li\u003e \u003cli\u003eMax. linear excursion (mathematical): 3.5 mm\u003c\/li\u003e \u003cli\u003eVoice - coil inductance @ 1kHz: 1.25 mH\u003c\/li\u003e \u003cli\u003eHalf-space efficiency: 4.12%\u003c\/li\u003e \u003cli\u003eOverall Diameter: 320 \/ 12.6 mm\/inch\u003c\/li\u003e \u003cli\u003eBolt Circle Diameter: 296-304 \/ 11.7-12 mm\/inch\u003c\/li\u003e \u003cli\u003eBolt Hole Diameter: 7 \/ 0.3 mm\/inch\u003c\/li\u003e \u003cli\u003eFront Mount Baffle Cut-out: 286 \/ 11.3 mm\/inch\u003c\/li\u003e \u003cli\u003eRear Mount Baffle Cut-out: 284 \/ 11.2 mm\/inch\u003c\/li\u003e \u003cli\u003eDepth: 146 \/ 5.7 mm\/inch\u003c\/li\u003e \u003cli\u003eVolume occupied by the driver: 2.9 \/ 0.10 liters\/ft³\u003c\/li\u003e \u003cli\u003eNet Weight: 11.5 \/ 25.3 kg\/lbs\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e","brand":"RCF","offers":[{"title":"Default Title","offer_id":32388159701127,"sku":"L12L750","price":319.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0319\/3687\/2583\/products\/img_proxy_bdc75502-0d72-4969-b419-5ecdf5b38dcf.jpg?v=1582296105","url":"https:\/\/www.balkanimal.com\/products\/rcf-l12l750-mid-bass","provider":"Audiofeen","version":"1.0","type":"link"}