{"product_id":"b2-audio-3-way-6-5-ref-sq-series-component-passive-crossover","title":"B2 Audio 3 Way 6.5\" REF SQ Series Component Passive Crossover","description":"\u003cul\u003e\n\u003cli\u003ePremium 3-Way SQ Component Set – Includes (2) 6.5\" Carbon Fiber Mid-woofers, (2) 3\" Full-Range Carbon Fiber Midrange Speakers, and (2) 1\" Ceramic Dome Tweeters for full-spectrum, high-resolution sound.\u003c\/li\u003e\n\u003cli\u003eMulti-Layer Carbon Fiber Cones – Both midrange and midbass drivers use rigid, lightweight carbon fiber construction for clean, controlled performance and powerful output with minimal distortion.\u003c\/li\u003e\n\u003cli\u003e1\" Ceramic Dome Tweeters – Delivers incredibly accurate and delicate high-frequency detail with a CCAW voice coil, dual neodymium magnets, and vented aluminum housing for low distortion and heat control.\u003c\/li\u003e\n\u003cli\u003e3\" Full-Range Mids with CNC Gold Detailing – FEA-optimized neodymium motor with precisely fitted copper cap and gold-plated CNC yoke and top plate ensures low compression, rich vocals, and smooth upper mids.\u003c\/li\u003e\n\u003cli\u003eHigh Efficiency and Low Compression Design – Vented die-cast aluminum baskets, copper shorting rings, and non-conductive voice coil formers maximize airflow, thermal dissipation, and clarity at high volumes.\u003c\/li\u003e\n\u003cli\u003ePower Ratings – 6.5\" Midbass: 100W Max \/ 70W RMS | 3\" Full-Range: 100W Max \/ 30W RMS | 1\" Tweeter: 75W Max \/ 25W RMS | Nominal Impedance: 4Ω (Woofer \u0026amp; Mid), 3Ω (Tweeter).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eB2 Audio 3 Way 6.5\" REF SQ Series Component Passive Crossover\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  \u003cli\u003e(2) Passive 2-Way Crossovers\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eItem Description\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eExperience breathtaking clarity and full-spectrum precision with the B2 Audio REFSQ63 Reference Series 3-Way Component Set, a world-class sound solution crafted for competition-level sound quality and elite daily setups.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eThis system blends powerful, musical 6.5\" mid-woofers with ultra-clear 3\" mids and ultra-responsive 1\" ceramic dome tweeters. Every element has been engineered for maximum resolution, low distortion, and linear dynamics, letting your audio system reproduce every nuance with richness and accuracy.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eFrom the deep control of the midbass to the articulate full-range vocals and the shimmering finesse of the highs, the REFSQ63 delivers a coherent and immersive soundstage worthy of the Reference badge.\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\u003e6.5\" \u0026amp; 3\" multi-layer carbon fiber cones for strength, control, and musicality\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003e1\" ceramic dome tweeters for extremely accurate and delicate high frequencies\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eFEA-optimized neodymium motors on tweeter and midrange\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eNon-conductive TIL voice coil formers for damping control\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCCAW and copper voice coils for reduced moving mass\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eGold-plated top plates, CNC aluminum baskets and trim rings\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVented baskets and pole pieces for thermal and acoustic efficiency\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003ePerfect for active or passive 3-way SQ builds\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCrossover Configuration Explained:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\nThis set includes a 2-way bi-amp crossover, designed to let you run the woofer and tweeter on separate dedicated amplifier channels. This setup is especially popular among SQ (sound quality) enthusiasts who want maximum control and refinement in their system.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eWhile a true tri-amp crossover would require a 6-channel amplifier with identical circuits (adding complexity and cost), this crossover offers more flexibility. You can run it as a 2-way (woofer + tweeter per side), while the included 3\" full-range driver can be crossed over actively with your DSP or amplifier.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eThis allows you to create a passive\/active hybrid system using only a 4-channel amplifier, or go fully active with a DSP for ultimate control. The design gives you the freedom to choose between traditional passive convenience or advanced active configurations - all without being locked into one option.\u003c\/p\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 Dealer","offers":[{"title":"Default Title","offer_id":47571903283390,"sku":"B2-REFSQ63","price":594.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/0021\/5230\/files\/ce52a098714208217d55e9115ce4868c1b3c8b2362066ce5caf9404395f2e0a5.jpg?v=1779533660","url":"https:\/\/budgetbassmerch.store\/products\/b2-audio-3-way-6-5-ref-sq-series-component-passive-crossover","provider":"Budget Bass Merch","version":"1.0","type":"link"}