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DAYTON AUDIO CE70PR-4 Midrange / Full-Range Speaker
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DAYTON AUDIO CE70PR-4 Midrange / Full-Range Speaker 20W 4 Ohm 85dB 85Hz-13kHz Ø6.35cm
The Dayton Audio CE70PR-4 is a 6.35cm (2.5") full-range speaker, designed to reproduce the entire audible spectrum in a particularly compact format. Its 20 W power handling and 4 Ω impedance make it easy to pair with many amplifiers, while its rugged design meets the requirements of commercial installations as well as DIY projects.
Intended for manufacturers, integrators and designers looking for a space-saving component, it delivers a clear and balanced reproduction while integrating easily into restricted spaces. This versatility makes it suitable for custom equipment as well as artistic installations and audio applications where the balance between size, cost and performance is a central factor.
Technical specifications
| Specifications | |
|---|---|
| Product type | Midrange / Full-Range speaker |
| Impedance | 4Ω |
| Sensitivity | 85dB 2.83V/1m |
| Frequency response | 85Hz-13kHz |
| Voice coil diameter | 1.98cm (0.78") |
| Nominal diameter | 6.35cm (2.5") |
| Power | RMS: 20W MAX: 40W |
| Thiele-Small parameters | |
|---|---|
| Resonance frequency (Fs) | 109Hz |
| Cone surface area (Sd) | 24.6cm² |
| Voice coil inductance (Le) | 0.31mH |
| DC resistance (Re) | 3.13Ω |
| Mechanical quality coefficient (Qms) | 3.5 |
| Electromagnetic quality coefficient (Qes) | 0.77 |
| Total quality coefficient (Qts) | 0.63 |
| Force factor (BL) | 3.11T·m |
| Total moving mass + air load on the cone (Mms) | 3.5g |
| Mechanical compliance of suspension (Cms) | 0.61mm/N |
| Compliance equivalent volume (Vas) | 0.018ft³ |
| Max linear excursion (Xmax) | 4mm |
| General | |
|---|---|
| Weight | 360g |
| Package | Sold individually |
| Speaker Power (W RMS) | 20.0 |
| Speaker Type | Full range |
| Impedance (Ω) | 4 |
| Loudspeaker diameter (mm) | 63.5 |
| Diaphragm type | N/A |
| Efficiency / Sensitivity (dB) | 85.0 |
| Max Linear Excursion (Xmax) (mm) | 4.0 |
| Lowest frequency (Hz) | 85 |
| Highest frequency (Hz) | 13000 |
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