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DAYTON AUDIO RS125P-4 Speaker Driver Woofer Paper/Kevlar 30W 4 Ohms 90dB 70Hz-12kHz Ø12.7cm
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DAYTON AUDIO RS125P-4 Speaker Driver Woofer Paper/Kevlar 30W 4 Ohms 90dB 70Hz-12kHz Ø12.7cm
The Dayton Audio RS125P-4 woofer is a high-quality bass speaker. It can handle up to 30Wrms of power with a peak of up to 45W. Its nominal impedance is 4 ohms and its frequency response ranges from 70Hz to 12kHz. Its sensitivity of 90dB makes it very efficient, allowing it to produce sound without requiring high power.
The paper speakers in the Reference series use an exclusive paper cone formulation combining natural paper pulp with Kevlar® and glass fibers to create an advanced non-woven fiber composite that offers the perfect combination of excellent detail and a smooth, natural sound character.
Technical characteristics
| Specifications | |
|---|---|
| Product type | Speaker |
| Speaker type | Woofer |
| Nominal diameter | Ø12.7cm (5") |
| Handling power (RMS) | 30Wrms |
| Handling power (Max.) | 45W |
| Impedance | 4 ohms |
| Frequency response | 70Hz-12kHz |
| Sensitivity | 90dB 2.83V/1m |
| Voice coil diameter | 2.54cm (1") |
| Thiele-Small parameters | |
|---|---|
| Resonant Frequency (Fs) | 70Hz |
| DC Resistance (Re) | 3.1Ω |
| Voice Coil Inductance (Le) | 0.32mH |
| Mechanical Q (Qms) | 3.19 |
| Electromagnetic Q (Qes) | 0.57 |
| Total Q (Qts) | 0.48 |
| Compliance Equivalent Volume (Vas) | 0.14ft³ |
| Mechanical Compliance of Suspension (Cms) | 1.02mm/N |
| BL Product (BL) | 3.49T·m |
| Diaphragm Mass Inc. Airload (Mms) | 5.1g |
| Maximum Linear Excursion (Xmax) | 4mm |
| Surface Area of Cone (Sd) | 54.11cm² |
| Material | |
|---|---|
| Cone material | Paper / Kevlar |
| Surround material | Rubber |
| Voice coil wire material | Copper |
| Voice Coil Former | Aluminum |
| Basket / Frame Material | CAst aluminum |
| Magnet material | Ferrite |
| Mounting information | |
|---|---|
| Overall Outside Diameter | 12.54cm (4.94") |
| Baffle Cutout Diameter | 9.4cm (3.70") |
| Depth | 5.48cm (2.16") |
| # Mounting Holes | 6 |
| Recommended enclosure volume | |
|---|---|
| Sealed Volume | 0.1ft³ |
| Sealed F3 | 134Hz |
| Vented volume | 0.26ft³ |
| Vented F3 | 52Hz |
| General | |
|---|---|
| Weight | 1.85kg |
| Package | 1x DAYTON AUDIO RS125P-4 Woofer |
| Speaker Power (W RMS) | 30 |
| Speaker Type | Woofer |
| Impedance (Ω) | 4 |
| Loudspeaker diameter (mm) | 127.0 |
| Diaphragm type | Paper |
| Diaphragm type | Kevlar |
| Efficiency / Sensitivity (dB) | 90.0 |
| Max Linear Excursion (Xmax) (mm) | 4.0 |
| Lowest frequency (Hz) | 70 |
| Highest frequency (Hz) | 12000 |
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