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The Dayton Audio CE48-4 is a 2-inch (5.08cm) full-range speaker designed for compact applications, DIY projects, commercial integrations, custom audio devices, and artistic installations. Despite its compact size, this 4Ω transducer offers a power handling of 5W RMS and 10W maximum, with a frequency response of 120Hz to 20kHz and a sensitivity of 79dB (2.83V/1m), allowing for clear and precise audio reproduction.
It uses a rubber surround and a steel basket, with a total outer diameter of 2.55" (64.8mm), a depth of 1.4" (35.6mm), and 4 mounting holes, providing suitable integration for projects where available space is limited. With its compact size, balance between footprint, cost and performance, and full-range design, the Dayton Audio CE48-4 is a suitable solution for manufacturers and DIY enthusiasts looking for a versatile transducer for their audio projects.

Technical Specifications
| Specifications | |
|---|---|
| Product type | Miniature full-range speaker |
| Nominal diameter | Ø5.08cm (2") |
| Power | RMS: 5W Max: 10W |
| Impedance | 4Ω |
| Frequency response | 120Hz-20KHz |
| Sensitivity | 79dB 2.83V/1m |
| Voice coil diameter | Ø16.002mm (0.63") |
| Thiele-Small Parameters | |
|---|---|
| Resonant frequency (Fs) | 151Hz |
| DC resistance (Re) | 3.5Ω |
| Voice coil inductance (Le) | 0.37mH |
| Mechanical quality factor (Qms) | 11.03 |
| Electromagnetic quality factor (Qes) | 1.04 |
| Total quality factor (Qts) | 0.95 |
| Equivalent air volume compliance of the moving assembly (Vas) | 0.002ft³ (0.0566L) |
| Mechanical compliance of the suspension (Cms) | 0.59mm/N |
| Force factor (BL) | 2.48T·m |
| Diaphragm moving mass (Mms) | 1.9g |
| Maximum linear excursion (Xmax) | 1.2mm |
| Diaphragm area (Sd) | 9.1cm² |
| Materials | |
|---|---|
| Surround material | Rubber |
| Basket material | Steel |
| Mounting Information | |
|---|---|
| Total outer diameter | Ø64.77mm mm (2.55") |
| Cutout diameter | Ø35.56mm (1.4") |
| Mounting holes | 4 |
| General | |
|---|---|
| Packaging | Sold individually |
| Speaker Power (W RMS) | 5.0 |
| Speaker Type | Full range |
| Impedance (Ω) | 4 |
| Loudspeaker diameter (mm) | 50.0 |
| Diaphragm type | N/A |
| Efficiency / Sensitivity (dB) | 79.0 |
| Max Linear Excursion (Xmax) (mm) | 1.2 |
| Lowest frequency (Hz) | 120 |
| Highest frequency (Hz) | 20000 |