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Dayton Audio DMA45-PR 1-1/2" DMA Series Passive Radiator

Dayton Audio
Part #295-592

Dayton Audio DMA45-PR 1-1/2" DMA Series Passive Radiator

Dayton Audio
Part #295-592  
Model: DMA45-PR
Dayton Audio's DMA45-PR 1-1/2" aluminum cone passive radiator allows you to tune small enclosures lower than using conventional ports. Matching the DMA45 drivers perfectly, this passive radiator is perfect for use in ultra-small designs like smart speakers, sound bars, and portable Bluetooth speakers.
Key Features
  • Perfect match for the Dayton Audio DMA series drivers
  • Allows tuning small enclosures lower than using conventional ports
  • Rear mounted threaded post allows easy mass adjustment for custom tuning
  • DIY friendly, oversized mounting flange makes installation simple
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MSRP: $7.99
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Overview

Dayton Audio DMA45-PR 1-1/2" DMA Series Passive Radiator

The DMA45-PR 1-1/2" passive radiator from Dayton Audio is the perfect option for achieving low tuning frequencies from the smallest enclosure designs. This incredibly small passive radiator has all the features you would expect lager units including adjustable mass, aluminum cone, and rubber surround. Visually identical to Dayton Audio's full-range DMA series drivers, the DMA45-PR can be used with any mini-speaker. The threaded rod and included wing nut on the back of the cone makes it easy to add mass to tune the radiator as needed for your projects. Whether you are building a smart speaker, sound bar, or portable Bluetooth speaker, the Dayton Audio DMA45-PR introduces a new range of possibilities.

Specifications: • Fs: 60 Hz • Vas: 0.0092 ft³ (0.26 liters) • Qms: 2.75 • Cms: 2.12 mm/N • Mms: 2.8 g • Rms: 0.38 kg/s • Sd: 8.6 sq. cm. • Xmech: 5 mm • Dimensions: Overall diameter: 1.8" x 1.8", Cutout diameter: 1.56", Depth: 1.35".

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
ModelDMA45-PR
Part Number295-592
UPC848791005602
Unit of MeasureEach
Weight0.1

Product Specifications

Nominal Diameter2-1/2"
Bolt Circle Diameter2

Thiele-Small Parameters

Resonant Frequency (Fs)60Hz
Mechanical Q (Qms)2.75
Compliance Equivalent Volume (Vas)0.0092ft³
Mechanical Compliance of Suspension (Cms)2.12mm/N
Maximum Linear Excursion (Xmax)5mm
Surface Area of Cone (Sd)8.6cm²

Materials of Construction

Cone MaterialAluminum
Surround MaterialRubber
Basket / Frame MaterialPolymer

Mounting Information

Overall Outside Diameter1.8" x 1.8"
Baffle Cutout Diameter1.56"
Depth1.35"

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