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DAYTON AUDIO DS90-PR Passive Radiator
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DAYTON AUDIO DS90-PR Passive Radiator 42.4Hz Ø7.62cm
The Dayton Audio DS90-PR is a passive radiator of 7.62cm (3") designed to complement the paper cone drivers of the Dayton Audio Designer series or to replace an existing model. In a compact enclosure, it allows lowering the tuning compared to a conventional port, without requiring a duct.
Its treated paper cone, medium-profile rubber surround and steel frame reuse the construction of the drivers in the range. An integrated mass provides a starting point for tuning, while the rear M5 thread allows adding weights to adapt the tuning to the enclosure. The frame edge is also designed for surface mounting, particularly in hi-fi or portable speakers.
Technical specifications
| Specifications | |
|---|---|
| Product type | Passive radiator |
| Nominal diameter | 3" |
| Thiele-Small parameters | |
|---|---|
| Resonance frequency (Fs) | 42.4Hz |
| Mechanical quality factor (Qms) | 5.9 |
| Compliance equivalent volume (Vas) | 0.124ft³ |
| Mechanical compliance of suspension (Cms) | 2.55mm/N |
| Total moving mass + air load on the diaphragm (Mms) | 5.5g |
| Max linear excursion (Xmax) | 4mm |
| Diaphragm surface area (Sd) | 31.2cm² |
| Materials | |
|---|---|
| Diaphragm | Paper |
| Surround | Rubber |
| Frame | Steel |
| Mounting informations | |
|---|---|
| Total external diameter | 9.22cm (3.63") |
| Cutout diameter | 7cm (2.76") |
| Depth | 2,18cm (0.86") |
| Number of mounting holes | 4 |
| General | |
|---|---|
| Weight | 100g |
| Package | Sold individually |
| Speaker Power (W RMS) | NC |
| Speaker Type | Passive Radiator |
| Impedance (Ω) | NC |
| Loudspeaker diameter (mm) | 76.2 |
| Diaphragm type | Paper |
| Efficiency / Sensitivity (dB) | N/A |
| Max Linear Excursion (Xmax) (mm) | 4.0 |
| Lowest frequency (Hz) | N/A |
| Highest frequency (Hz) | N/A |
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