Dayton Audio DSA215-PR

Dayton Audio DSA215-PR - 8" Designer Series Aluminum Cone Passive Radiator

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.

Highlights

• Perfect match for Dayton Audio's aluminum cone Designer Series drivers
• Allows tuning small enclosures lower than using conventional ports
• Rear mounted screw allows easy mass adjustment for custom tuning
• Cosmetic frame edge looks great even when surface mounted

Product Specifications

• Nominal Diameter: 8"

Thiele-Small Parameters

• Resonant Frequency (Fs): 25.6 Hz
• Mechanical Q (Qms): 7.66
• Compliance Equivalent Volume (Vas): 1.30 ft.³
• Mechanical Compliance of Suspension (Cms): 0.58 mm/N
• Diaphragm Mass Inc. Airload (Mms): 67g
• Maximum Linear Excursion (Xmax): 11 mm
• Surface Area of Cone (Sd): 211.2 cm²

Materials of Construction

• Cone Material: Aluminum
• Surround Material: Rubber
• Basket / Frame Material: Steel

Mounting Information

• Overall Outside Diameter: 8.50"
• Baffle Cutout Diameter: 7.01"
• Depth: 2.30"
• Bolt Circle Diameter: 8.11"
• Mounting Holes: 5

Specifications:

• Fs: 25.6 Hz
• Qms: 7.66
• Mms: 67g
• Cms: 0.58 mm/N
• Sd: 211.2 cm²
• Vd: 232.4 cm³
• Vas: 36.7 liters
• Xmax: 11 mm
• Rms: 1.4 kg/s

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