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Product Details
Dayton Audio DSA135-PR 5″ 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. 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: 27.9 Hz • Vas: 0.43 cu. ft. • Qms: 3.7 • Cms: 1.51 mm/N • Rms: 1.0 kg/s • Mms: 21.5 g • Sd: 75.4 sq. cm. • Xmax: 8 mm • Dimensions: Overall diameter: 5.31″, Cutout diameter: 4.40″, Depth: 1.5″.

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
5″
Thiele-Small Parameters
Resonant Frequency (Fs)
27.9 Hz

Mechanical Q (Qms)
3.7
 
Compliance Equivalent Volume (Vas)
0.43 ft.³

Mechanical Compliance of Suspension (Cms)
1.51 mm/N
 
Diaphragm Mass Inc. Airload (Mms)
21.5g

Maximum Linear Excursion (Xmax)
8 mm
 
Surface Area of Cone (Sd)
75.4 cm²
Materials of Construction
Cone Material
Aluminum

Surround Material
Rubber
 
Basket / Frame Material
Steel
Mounting Information
Overall Outside Diameter
5.31″

Baffle Cutout Diameter
4.40″
 
Depth
1.50″

Bolt Circle Diameter
4.21″
 
# Mounting Holes
4