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DAYTON AUDIO DMA45-PR Passive Radiator
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Dayton Audio DMA45-PRPassive Radiator 60Hz Ø3.8cm
Dayton Audio's DMA45-PR passive radiator is the ideal option for achieving low tuning frequencies from even the most compact loudspeakers. This extremely small passive radiator incorporates all the features expected of a larger model, including adjustable mass, aluminum diaphragm and rubber suspension. Visually identical to the speakers in Dayton Audio's DMA range, the DMA45-PR lends itself perfectly to the design of compact loudspeakers. Thanks to the threaded rod and wing nut included at the rear, mass can easily be added to adjust the passive radiator response to the specific needs of each acoustic project.
Technical characteristics
| Specifications | |
|---|---|
| Product type | Passive radiator |
| Nominal diameter | Ø38.1mm (1.5") |
| Frequency response | 150Hz - 20kHz |
| Sensitivity | 76.9dB @ 2.83V/1m |
| Voice coil diameter | Ø19.05mm (0.75") |
| Weight | 45g |
| Total outer dimensions | 46 x 46 x 29.1mm |
| Thiele-Small parameters | |
|---|---|
| Resonant frequency (fS) | 60Hz |
| Mechanical quality coefficient (QMS) | 2.75 |
| Compliance equivalent volume (VAS) | 0.26L (0.0092ft³) |
| Mechanical compliance of suspension(CMS) | 2.12mm/N |
| Mechanical resistance (RMS) | 0.38kg/s |
| Moving mass inc. airload (MMS) | 2.8g |
| Maximum linear excursion (XMAX) | 5mm |
| Surface area of cone (SD) | 8.6cm² |
| Materials | |
|---|---|
| Cone | Aluminum |
| Surround | Rubber |
| Frame | Polymer |
| Mounting informations | |
|---|---|
| Outer dimensions | 46 x 46 x 29.1mm (1.8" x 1.8" x 1.35") |
| Cutout diameter | Ø39.6mm (1.56") |
| Depth | 34.2mm (1.35") |
| Bolt circle diameter | 50.8mm (2") |
| Number of mounting holes | 4 |
| Speaker Type | Passive Radiator |
| Loudspeaker diameter (mm) | 38.0 |
| Diaphragm type | Aluminium |
| Max Linear Excursion (Xmax) (mm) | 5.0 |
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