{"product_id":"b2-audio-3-way-6-5-ref-sq-series-car-audio-component-speaker-system","title":"B2 Audio 3-Way 6.5\" REF SQ Series Car Audio Component Speaker System","description":"\u003cul\u003e\n\u003cli\u003eELITE 3-WAY SOUND QUALITY COMPONENT SYSTEM: Premium B2 Audio REFSQ63 Reference Series speaker package featuring 6.5\" carbon fiber mid-woofers, 3\" full-range midrange drivers, and 1\" ceramic dome tweeters engineered for audiophile-grade clarity, staging, and detail.\u003c\/li\u003e\n\u003cli\u003eADVANCED CARBON FIBER \u0026amp; CERAMIC DRIVER TECHNOLOGY: Multi-layer carbon fiber cones deliver lightweight strength and exceptional musical accuracy while the ceramic dome tweeters reproduce ultra-detailed high frequencies with excellent transient response and low distortion.\u003c\/li\u003e\n\u003cli\u003eHIGH-END MOTOR \u0026amp; CNC COMPONENT DESIGN: Features FEA-optimized neodymium motor structures, CNC-machined aluminum baskets and trim rings, copper-capped motors, and vented cooling designs for improved efficiency, durability, and thermal stability.\u003c\/li\u003e\n\u003cli\u003eDESIGNED FOR ELITE SOUND QUALITY BUILDS: Engineered for active DSP-controlled installations and high-end SQ systems where imaging, tonal balance, vocal detail, and realistic sound reproduction are critical priorities.\u003c\/li\u003e\n\u003cli\u003ePREMIUM MATERIALS \u0026amp; LOW DISTORTION PERFORMANCE: Built with non-conductive TIL voice coil formers, CCAW and copper voice coil technology, vented die-cast aluminum baskets, and advanced suspension engineering to achieve precise, dynamic, and highly controlled sound reproduction.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eB2 Audio 3-Way 6.5\" REF SQ Series Car Audio Component Speaker System\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003e(2) 6.5\" Carbon Fiber Cone Mid-woofers\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003e(2) 3\" Carbon Fiber Full-Range Midrange Speakers\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003e(2) 1\" Ceramic Dome Tweeters\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003eExperience breathtaking clarity, detail, and full-spectrum sound reproduction with the B2 Audio REFSQ63 Reference Series 3-Way Component Speaker System. Engineered for elite sound quality builds and audiophile-level listening, this premium speaker package delivers exceptional resolution, accurate tonal balance, and immersive staging for serious car audio enthusiasts.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eThe REFSQ63 combines powerful 6.5\" carbon fiber mid-woofers, ultra-clear 3\" full-range midrange drivers, and highly detailed 1\" ceramic dome tweeters into a refined 3-way system capable of reproducing every nuance of your music with outstanding realism and precision.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eBuilt with premium materials and advanced engineering throughout, the REFSQ63 features multilayer carbon-fiber cones, CNC-machined aluminum components, FEA-optimized neodymium motor structures, and low-distortion suspension designs to achieve exceptional clarity, transient response, and dynamic control.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eFrom deep, controlled midbass to articulate vocals and shimmering high frequencies, the REFSQ63 delivers a coherent, highly detailed soundstage worthy of the Reference Series name.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003ePremium 3-way component speaker system\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003e6.5\" and 3\" multi-layer carbon fiber cones for strength and musical accuracy\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003e1\" ceramic dome tweeters for precise and detailed high frequencies\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eFEA-optimized neodymium motors on midrange and tweeter drivers\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCNC-machined aluminum baskets and trim rings\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eNon-conductive TIL voice coil formers for improved damping control\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCCAW and copper voice coil designs for reduced moving mass\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVented baskets and pole pieces for improved thermal management\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eDesigned for elite sound quality and audiophile car audio systems\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eExcellent for active DSP-controlled installations\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eComponent Specifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003e6.5\" Midwoofer:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eMax Power Handling: 100W\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eRMS Power Handling: 70W\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eNominal Impedance: 4 Ohm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVoice Coil Diameter: 1.4\" \/ 35.5 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCone Material: Multi-layer Carbon Fiber\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMagnet: High Density Ferrite\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eFrequency Response: 50 Hz - 10 kHz\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eSensitivity (1W\/1M): 87.6 dB\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMounting Depth: 2.93\" \/ 74.5 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCutout Diameter: 5.31\" \/ 135 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eOverall Diameter: 6.5\" \/ 165 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eUnit Weight: 3.74 lbs \/ 1700g\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003e3\" Mid-Range:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eMax Power Handling: 100W\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eRMS Power Handling: 30W\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eNominal Impedance: 4 Ohm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eDC Resistance: 3.35 Ohm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVoice Coil Diameter: 1.2\" \/ 30.5 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVoice Coil Former: TIL (non-conductive)\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVoice Coil Wire: Copper\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMagnet: Neodymium, FEA-optimized with copper cap\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCone Material: Multi-layer Carbon Fiber\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eBasket: Vented Die-Cast Aluminum\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eFrequency Response (-3dB): 200 Hz - 20,000 Hz\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eSensitivity (1W\/1M): 88.0 dB\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMounting Depth: 1.52\" \/ 38.6 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCutout Diameter: 3.02\" \/ 76.8 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eOverall Diameter: 3.62\" \/ 92 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eUnit Weight: 450g\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eT\/S Parameters:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eFs: 131.8 Hz\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eQms: 5.575\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eQes: 0.379\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eQts: 0.355\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eBL: 5.392 T-M\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMms: 3.97 g\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCms: 0.367 mm\/N\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVas: 0.475 L\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eSd: 30.19 cm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eLe: 0.151 mH\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eZo Max Impedance: 52.653 Ohm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eZmin: 3.974 Ohm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eReference Efficiency: 0.278%\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003e1\" Ceramic Dome Tweeter\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eMax Power Handling: 75W Peak \/ 25W RMS\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eNominal Impedance: 3.0 Ohm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eDC Resistance: 2.3 Ohm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVoice Coil Diameter: 1.0\" \/ 25.4 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVoice Coil Former: Polyimide\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVoice Coil Wire: CCAW\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCooling: Vented + copper conduction\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMagnet Structure: Internal dual neodymium\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eDome Material: Ceramic\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eSurround: VC-connected only - no dome interaction\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eHousing: CNC Aluminum for low resonance and thermal control\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eFrequency Response (-6dB): fs ~ 20,000 Hz\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eSensitivity (1W\/1M): 86.0 dB\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMounting Depth: 1.1\" \/ 28 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCutout Diameter: 1.79\" \/ 45.4 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eOverall Diameter: 2.24\" \/ 57 mm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eUnit Weight: 150g\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eT\/S Parameters:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eFs: 553.9 Hz\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eQms: 3.359\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eQes: 0.893\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eQts: 0.705\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eBL: 2.691 T-M\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMms: 0.808 g\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCms: 0.102 mm\/N\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVas: 9.386 mL\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eLe: 0.040 mH\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eZo Max Impedance: 10.955 Ohm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eZmin: 2.903 Ohm\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eReference Efficiency: 0.173%\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eShipping box size: 20.25\" x 13.25\" x 4.5\"\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eShipping weight 14.10 lbs\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e","brand":"B2 Audio","offers":[{"title":"Default Title","offer_id":48360767586552,"sku":"B2-REFSQ63-NO-XO","price":649.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0029\/9384\/8365\/files\/8a66839563e448c52da0217bc9fb61d52f1214bb6d3fb5e1025e49f2c6101159.jpg?v=1778508761","url":"https:\/\/bigjeffaudio.com\/products\/b2-audio-3-way-6-5-ref-sq-series-car-audio-component-speaker-system","provider":"Big Jeff Online Inc","version":"1.0","type":"link"}