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Dayton Audio DS90-PR 3" Designer Series Passive Radiator

Dayton Audio
Part #295-491

Dayton Audio DS90-PR 3" Designer Series Passive Radiator

Dayton Audio
Part #295-491  
Model: DS90-PR
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 treated paper cone making them visually identical.
Key Features
  • Perfect match for Dayton Audio's paper 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
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MSRP: $18.99
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Overview

Dayton Audio DS90-PR 3" Designer Series Passive Radiator

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 poly coated paper cone and medium-roll rubber surround for clean excursion and long life. The possibilities with these passives are endless, from floor standing two-ways to portable battery powered speaker systems.

Specifications: • Fs: 42.4 Hz • Vas: 0.124 cu. ft. • Qms: 5.9 • Cms: 2.55 mm/N • Rms: 0.3 kg/s • Mms: 5.5 g • Sd: 31.2 sq. cm. • Xmax: 4 mm • Dimensions: Overall diameter: 3.63", Cutout diameter: 2.76", Depth: 0.86".

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

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Product Details

BrandDayton Audio
ModelDS90-PR
Part Number295-491
UPC848791004995
Unit of MeasureEach
Weight0.2

Product Specifications

Nominal Diameter3"
Bolt Circle Diameter3.27

Thiele-Small Parameters

Resonant Frequency (Fs)42.4Hz
Mechanical Q (Qms)5.9
Compliance Equivalent Volume (Vas)0.124ft³
Mechanical Compliance of Suspension (Cms)2.55mm/N
Diaphragm Mass Inc. Airload (Mms)5.5g
Maximum Linear Excursion (Xmax)4mm
Surface Area of Cone (Sd)31.2cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialRubber
Basket / Frame MaterialSteel

Mounting Information

Overall Outside Diameter3.63"
Baffle Cutout Diameter2.76"
Depth0.86"
# Mounting Holes4

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