{"product_id":"bowers-wilkins-htm81-d4-center-channel-speaker","title":"Bowers \u0026 Wilkins HTM81 D4 Center Channel Speaker","description":"\u003ch2\u003eReference-Grade Center Channel Performance\u003c\/h2\u003e\n\n\u003cdiv style=\"background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%); color: #fff; padding: 25px; margin: 25px 0; border-left: 5px solid #d4af37; border-radius: 4px;\"\u003e\n\u003ch3 style=\"margin-top: 0; color: #d4af37;\"\u003eBowers \u0026amp; Wilkins HTM81 D4 Center Channel Speaker\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.15em; margin: 12px 0; line-height: 1.6;\"\u003e\u003cstrong\u003eDiamond Dome Tweeter\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003eContinuum™ Cone FST Midrange\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003eDual 8\" Aerofoil™ Bass Drivers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 1.6em; font-weight: bold; color: #d4af37; margin: 15px 0;\"\u003e$9,500 \u003cspan style=\"font-size: 0.6em; text-decoration: line-through; color: #999;\"\u003e$10,500\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 1.05em; margin-bottom: 0;\"\u003e\u003cem\u003eIn stock now. Special promotions available when purchased with matching 800 Series loudspeakers.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eAt the Center of It All\u003c\/h2\u003e\n\u003cp\u003eThe center-channel speaker is arguably the most important in home theater—and the \u003cstrong\u003eHTM81 D4\u003c\/strong\u003e has an enviable array of advanced technologies to reinforce that point. Our largest center-channel speaker is designed to partner the \u003cstrong\u003e801 D4 and 802 D4\u003c\/strong\u003e, delivering both the scale and midrange extension to perfectly match the quality of its illustrious stablemates.\u003c\/p\u003e\n\n\u003cp\u003eA powerful performer with reference-grade technologies including \u003cstrong\u003eSolid Body tweeter-on-top\u003c\/strong\u003e, a \u003cstrong\u003edecoupled Continuum™ Cone midrange drive unit\u003c\/strong\u003e, and \u003cstrong\u003etwin 200mm (8-in) Aerofoil™ bass cones\u003c\/strong\u003e, the HTM81 D4 ensures that dialogue, music, and effects are reproduced with stunning clarity, power, and realism.\u003c\/p\u003e\n\n\u003ch2\u003eAdvanced Driver Technologies\u003c\/h2\u003e\n\n\u003ch3\u003eDiamond Dome Tweeter\u003c\/h3\u003e\n\u003cp\u003eOne of Bowers \u0026amp; Wilkins' most significant accomplishments over the past two decades, the \u003cstrong\u003eultra-stiff, supremely accurate Diamond dome tweeter\u003c\/strong\u003e is the perfect combination of low mass, exceptional stiffness, and outstanding accuracy. Diamond's unique properties allow it to maintain pistonic behavior well beyond the audible range, eliminating breakup modes that color sound in conventional tweeters.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBenefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtended frequency response to 35kHz for exceptional air and detail\u003c\/li\u003e\n\u003cli\u003eVanishingly low distortion across the entire treble range\u003c\/li\u003e\n\u003cli\u003ePerfect transient response for crisp, natural high frequencies\u003c\/li\u003e\n\u003cli\u003eUncolored, grain-free presentation\u003c\/li\u003e\n\u003cli\u003e15 years after introduction, still the finest tweeter dome technology available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eContinuum™ Cone FST Midrange\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e150mm (6-inch) Continuum™ cone midrange driver\u003c\/strong\u003e uses Bowers \u0026amp; Wilkins' proprietary woven composite material that combines exceptional stiffness with optimal damping characteristics. Mounted in a \u003cstrong\u003edecoupled Fixed Suspension Transducer (FST)\u003c\/strong\u003e configuration, the midrange operates in complete isolation from cabinet resonances.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBenefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExceptional clarity and resolution in the critical midrange frequencies\u003c\/li\u003e\n\u003cli\u003eNatural, uncolored vocal reproduction—essential for dialogue intelligibility\u003c\/li\u003e\n\u003cli\u003eSeamless integration with Diamond tweeter and Aerofoil bass drivers\u003c\/li\u003e\n\u003cli\u003eDecoupled mounting eliminates cabinet-induced coloration\u003c\/li\u003e\n\u003cli\u003eWide, even dispersion for consistent sound across seating positions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDual Aerofoil™ Bass Drivers\u003c\/h3\u003e\n\u003cp\u003eThe HTM81 D4 employs \u003cstrong\u003etwo 200mm (8-inch) Aerofoil™ bass drivers\u003c\/strong\u003e to deliver the power and extension required for reference-level home theater. Aerofoil technology combines a \u003cstrong\u003ecarbon-fiber skin with a variable-profile foam core\u003c\/strong\u003e, achieving the ideal balance of low mass and high stiffness.\u003c\/p\u003e\n\n\u003cp\u003eNow enhanced with the \u003cstrong\u003efoam Anti-Resonance Plug\u003c\/strong\u003e, the Aerofoil drivers deliver even lower distortion and cleaner bass performance. Each driver is mounted in its own \u003cstrong\u003esolid aluminum bass pod\u003c\/strong\u003e, clamped into an aluminum plate fixed to the stiffest part of the curved cabinet for optimal mechanical grounding.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBenefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDeep, powerful bass extension down to 28Hz\u003c\/li\u003e\n\u003cli\u003eExceptional transient response and speed\u003c\/li\u003e\n\u003cli\u003eLow distortion even at high output levels\u003c\/li\u003e\n\u003cli\u003ePerfect tonal match with 801 D4 and 802 D4 main speakers\u003c\/li\u003e\n\u003cli\u003eEffortless dynamic capability for explosive movie soundtracks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAdvanced Cabinet Engineering\u003c\/h2\u003e\n\n\u003ch3\u003eSolid Body Tweeter-on-Top\u003c\/h3\u003e\n\u003cp\u003eThe Diamond tweeter is mounted in Bowers \u0026amp; Wilkins' signature \u003cstrong\u003eSolid Body Tweeter-on-Top\u003c\/strong\u003e housing—a massive, acoustically inert structure that completely isolates the tweeter from cabinet vibrations. This ensures that the tweeter operates in an ideal acoustic environment, free from the resonances that compromise performance in conventional designs.\u003c\/p\u003e\n\n\u003ch3\u003eMatrix™ Internal Bracing\u003c\/h3\u003e\n\u003cp\u003eThe HTM81 D4's curved cabinet incorporates Bowers \u0026amp; Wilkins' proprietary \u003cstrong\u003eMatrix™ bracing system\u003c\/strong\u003e—a complex internal structure that divides the cabinet into multiple small compartments, dramatically reducing panel resonances and ensuring that all acoustic energy is directed forward into the room.\u003c\/p\u003e\n\n\u003ch3\u003eAluminum Bass Pods\u003c\/h3\u003e\n\u003cp\u003eEach Aerofoil bass driver is mounted in its own \u003cstrong\u003esolid aluminum bass pod\u003c\/strong\u003e—formed as a single piece of metal for maximum stiffness. These pods are clamped into an aluminum plate fixed to the stiffest part of the curved cabinet, providing the perfect mechanical location for powerful, controlled bass reproduction.\u003c\/p\u003e\n\n\u003ch3\u003eFlowport™ Technology\u003c\/h3\u003e\n\u003cp\u003eThe HTM81 D4 uses Bowers \u0026amp; Wilkins' \u003cstrong\u003eFlowport™ technology\u003c\/strong\u003e to minimize port turbulence and chuffing, ensuring clean, distortion-free bass even at high output levels. The carefully profiled port geometry allows maximum airflow with minimum noise.\u003c\/p\u003e\n\n\u003ch2\u003ePerformance Specifications\u003c\/h2\u003e\n\n\u003ch3\u003eDriver Configuration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTweeter:\u003c\/strong\u003e 1 × 25mm (1-inch) Diamond dome high-frequency driver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMidrange:\u003c\/strong\u003e 1 × 150mm (6-inch) Continuum™ cone FST driver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBass:\u003c\/strong\u003e 2 × 200mm (8-inch) Aerofoil™ cone bass drivers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 3-way vented-box system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAcoustic Performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Range:\u003c\/strong\u003e 20Hz – 35kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 28Hz – 28kHz (±3dB from reference axis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitivity:\u003c\/strong\u003e 90dB (on axis at 2.83Vrms at 1m)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Impedance:\u003c\/strong\u003e 8Ω (minimum 3.0Ω)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Amplifier Power:\u003c\/strong\u003e 50W – 500W into 8Ω on unclipped program\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Recommended Cable Impedance:\u003c\/strong\u003e 0.1Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHarmonic Distortion\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e2nd and 3rd Harmonics (90dB, 1m on axis):\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u0026lt;1% 80Hz – 20kHz\u003c\/li\u003e\n\u003cli\u003e\u0026lt;0.3% 100Hz – 20kHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePhysical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (H × W × D):\u003c\/strong\u003e 334mm × 847mm × 371mm (13.1\" × 33.3\" × 14.6\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Weight:\u003c\/strong\u003e 32.2kg (71 lbs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish Options:\u003c\/strong\u003e Gloss Black, Satin White (contact for availability)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Stand not included. Contact us for compatible stand recommendations.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eIdeal System Pairings\u003c\/h2\u003e\n\n\u003ch3\u003ePerfect Match for 800 Series Diamond\u003c\/h3\u003e\n\u003cp\u003eThe HTM81 D4 is specifically designed to partner the \u003cstrong\u003e801 D4 and 802 D4\u003c\/strong\u003e main speakers, sharing identical driver technologies and voicing for seamless tonal integration. This ensures that dialogue and effects pan smoothly across the front soundstage without timbral shifts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRecommended Configurations:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltimate Reference:\u003c\/strong\u003e 801 D4 (L\/R) + HTM81 D4 (center) + 805 D4 (surrounds)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Theater:\u003c\/strong\u003e 802 D4 (L\/R) + HTM81 D4 (center) + 804 D4 (surrounds)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Reference:\u003c\/strong\u003e 803 D4 (L\/R) + HTM81 D4 (center) + 805 D4 (surrounds)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectronics \u0026amp; Processing\u003c\/h3\u003e\n\u003cp\u003eThe HTM81 D4's high sensitivity (90dB) and benign impedance curve make it compatible with a wide range of AV processors and amplifiers. For reference-level performance, we recommend:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessors:\u003c\/strong\u003e Anthem AVM 90, Trinnov Altitude, Storm Audio, Datasat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifiers:\u003c\/strong\u003e Classe, Rotel Michi, Bryston, ATI, Mark Levinson\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Solutions:\u003c\/strong\u003e Anthem STR, NAD Masters M33\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Buy From Sunny Components?\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized B\u0026amp;W Dealer:\u003c\/strong\u003e Factory-authorized sales and service, full manufacturer warranty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn Stock Now:\u003c\/strong\u003e Immediate availability for audition or delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecial Promotions:\u003c\/strong\u003e Bundle pricing available with matching 800 Series speakers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpert System Design:\u003c\/strong\u003e We'll help you design your complete home theater\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShowroom Demonstrations:\u003c\/strong\u003e Experience the HTM81 D4 in our reference theater\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Installation:\u003c\/strong\u003e Available for complete system integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30+ Years Experience:\u003c\/strong\u003e Deep expertise in high-end home theater design\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eComplete Home Theater Design Services\u003c\/h2\u003e\n\u003cp\u003eAt Sunny Components, we specialize in designing complete reference home theater systems. With your HTM81 D4 purchase, we'll help you:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eSelect ideal main and surround speakers from the 800 Series Diamond lineup\u003c\/li\u003e\n\u003cli\u003eChoose appropriate AV processor and amplification\u003c\/li\u003e\n\u003cli\u003eSpecify premium cables and interconnects (Argento, AudioQuest, Shunyata)\u003c\/li\u003e\n\u003cli\u003eRecommend power conditioning for maximum performance\u003c\/li\u003e\n\u003cli\u003ePlan room treatments and acoustic optimization\u003c\/li\u003e\n\u003cli\u003eCoordinate professional installation and calibration\u003c\/li\u003e\n\u003cli\u003eProvide ongoing support and system refinement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePurchase Details\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrice: $9,500\u003c\/strong\u003e (Regular $10,500 - Save $1,000)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new in factory-sealed packaging\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e Full Bowers \u0026amp; Wilkins manufacturer warranty\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock and ready for immediate delivery\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecial Promotions:\u003c\/strong\u003e Additional discounts available when purchased with matching 801 D4, 802 D4, or other 800 Series Diamond speakers. Contact us for bundle pricing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Professionally packaged and fully insured. Contact us for shipping quote.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLocal Pickup:\u003c\/strong\u003e Available at our Covina, CA showroom. Audition in our reference home theater before taking home.\u003c\/p\u003e\n\n\u003ch2\u003eExperience Reference-Grade Home Theater\u003c\/h2\u003e\n\n\u003cp\u003eThe HTM81 D4 represents the pinnacle of center channel speaker design, combining Bowers \u0026amp; Wilkins' most advanced technologies in a package specifically engineered to partner the legendary 801 D4 and 802 D4. Whether you're building a new reference theater or upgrading an existing system, the HTM81 D4 delivers the clarity, power, and tonal accuracy that define world-class home cinema.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNext Steps:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eContact us to discuss your home theater goals and room\u003c\/li\u003e\n\u003cli\u003eSchedule a showroom demonstration (highly recommended)\u003c\/li\u003e\n\u003cli\u003eLet us design your complete 800 Series Diamond system\u003c\/li\u003e\n\u003cli\u003eExperience home theater the way it was meant to be heard\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp style=\"background: #f8f8f8; padding: 20px; margin: 25px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"font-size: 1.1em;\"\u003eContact Sunny Components Today:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cstrong\u003eSunny Components Inc.\u003c\/strong\u003e\u003cbr\u003e\n1370 E Cypress Street, Suite D\u003cbr\u003e\nCovina, CA 91724\u003cbr\u003e\n\u003cstrong\u003ePhone:\u003c\/strong\u003e (626) 975-1353\u003cbr\u003e\n\u003cstrong\u003eWeb:\u003c\/strong\u003e sunnyaudiovideo.com\u003cbr\u003e\u003cbr\u003e\n\u003cem\u003eVisit our showroom to experience the HTM81 D4 in our reference home theater system.\u003c\/em\u003e\n\u003c\/p\u003e\n\n\u003cp style=\"font-size: 1.2em; font-weight: bold; text-align: center; color: #c00; margin-top: 30px;\"\u003e⚡ In Stock Now - Special Bundle Pricing Available ⚡\u003c\/p\u003e","brand":"Bowers \u0026 Wilkins","offers":[{"title":"Gloss Black","offer_id":45657465258238,"sku":"FP42056","price":10500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/4156\/7486\/files\/3152546332.jpg?v=1745603969","url":"https:\/\/sunnyaudiovideo.com\/products\/bowers-wilkins-htm81-d4-center-channel-speaker","provider":"Sunny Components Inc.","version":"1.0","type":"link"}