Dayton Audio DSA175-PR 6-1/2" Designer and similar items

Brand NEW! Including 90 Days USA Factory Warranty. The Dayton Audio Designer Series passive radiators are excellent general-purpose passives suitable for replacement or for new construction. Built to be a perfect match for the Designer Series drivers, these passive radiators feature the same steel frame, rubber surround, and anodized aluminum cone making them visually identical. Key Features ? Perfect match for Dayton Audio's aluminum cone Designer Series drivers ? Rear mounted screw allows easy mass adjustment for custom tuning ? Cosmetic frame edge looks great even when surface mounted ? Allows tuning small enclosures lower than using conventional ports. The Dayton Audio Designer Series passive radiators are excellent general-purpose passives suitable for replacement or for new construction. A built-in mass disc offers a good starting point for most designs, and a convenient M5 threaded hole (screw included) allows different types of weights to be added if desired. Cosmetically and mechanically, these passives match Dayton Audio's Designer Series drives, with a black anodized aluminum cone and medium-roll rubber surround for clean excursion and long life. The possibilities with these passives are endless, from stand mount two-ways to portable battery powered speaker systems. Specifications: ? Fs: 26.8 Hz ? Vas: 0.95 ft ? Qms: 4.30 ? Cms: 1.15 mm/N ? Rms: 1.2 kg/s ? Mms: 30.7 g ? Sd: 128.7 sq. cm. ? Xmax: 8 mm ? Dimensions: Overall diameter: 6.91", Cutout diameter: 5.67", Depth: 1.85". Note: Adding mass to the passive radiator will decrease Fs and increase Qms. Tip: As a general rule, the passive radiator(s) should have at least double the displacement of air (Vd) as the active woofer(s)/subwoofer(s) in the system. To calculate Vd: Sd x Xmax = Vd Product Specifications Nominal Diameter 6-1/2" Bolt Circle Diameter 6.54 Moving Mass Of Diaphragm (Mmd) 30.7 Thiele-Small Parameters Resonant Frequency (Fs) 26.8Hz Mechanical Q (Qms) 4.3 Compliance Equivalent Volume (Vas) 0.95ft Mechanical Compliance of Suspension (Cms) 1.15mm/N Maximum Linear Excursion (Xmax) 8mm Surface Area of Cone (Sd) 128.7cm Materials of Construction Cone Material Aluminum Surround Material Rubber Basket / Frame Material Steel Mounting Information Overall Outside Diameter 6.91" Baffle Cutout Diameter 5.67" Depth 1.85" # Mounting Holes 5 - All international buyers are responsible for all tax, duties and/or customs fees.