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DAYTON AUDIO CF120-4 Speaker Driver Midwoofer
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DAYTON AUDIO CF120-4 Low-Midwoofer 30W 4Ω 89dB 50Hz-15kHz Ø114.3mm
The Dayton Audio CF120-4 low-midwoofer is the perfect combination of aesthetics and performance thanks to its high-tech carbon composite cone. The CF120-4 covers a wide frequency response ranging from 50Hz to 15kHz and is ideal for 2-way satellite systems as well as MTM designs or high-end car audio applications.
Summary of the main advantages of the Dayton Audio CF120-4:
- Pincushion cast aluminum frame.
- Its ultra-lightweight and robust woven carbon fibre cone.
- A copper cap and a large magnet for a low-distortion motor structure.
- Its 2.54 cm (1") voice coil is both durable and powerful, resistant to high temperatures thanks to its double layer.
- The black anodised aluminium vented former, allowing for better heat dissipation and power management.
- A frequency response up to 15kHz.
Technical characteristics
| Specifications | |
|---|---|
| Product type | Speaker |
| Speaker type | Midwoofer |
| Nominal Diameter | Ø114.3mm (4-1/2") |
| Power Handling (RMS) | 30W |
| Power Handling (MAX) | 60W |
| Impedance | 4Ω |
| Frequency Response | 50Hz-15kHz |
| Sensitivity | 89,1dB 2,83V/1m |
| Voice Coil Diameter | 2.54cm (1") |
| Thiele-Small Parameters | |
|---|---|
| Resonant Frequency (FS) | 53.2Hz |
| DC Resistance (Re) | 3,4Ω |
| Voice coil inductance (Le) | 0,45mH |
| Mechanical Q (Qms) | 1,89 |
| Electromagnetic Q (Qes) | 0,32 |
| Total Q (Qts) | 0,28 |
| Compliance equivalent volume (Vas) | 0,17pi³ |
| Mechanical compliance of Suspension (Cms) | 1.306mm/N |
| BL product (BL) | 4.94T·m |
| Diaphragm mass inc. airload (Mms) | 6.86g |
| Maximum linear excursion | 3.5mm |
| Surface area of cone (Sd) | 51.25cm² |
| Materials | |
|---|---|
| Cone material | Carbon fiber composite |
| Surround material | Rubber |
| Voice coil wire material | Copper |
| Voice coil former | Aluminium |
| Basket / frame material | Cast Aluminum |
| Magnet material | Ferrite |
| Mounting Information | |
|---|---|
| Overall outside diameter | 127mm (5") |
| Baffle cutout diameter | 95.25m (3.75") |
| Depth | 57.15mm (2.25") |
| Mounting holes | 4 |
| Recommended Enclosure Volume | |
|---|---|
| Sealed volume | 0.07pi³ |
| Sealed F3 | 180Hz |
| Vented volume | 0,2pi³ |
| Vented F3 | 60Hz |
| General | |
|---|---|
| Package | 1x Dayton Audio CF120-4 |
| Weight | 2.2kg |
| Speaker Power (W RMS) | 30 |
| Speaker Type | Midbass |
| Impedance (Ω) | 4 |
| Loudspeaker diameter (mm) | 114.0 |
| Diaphragm type | Carbon fiber |
| Efficiency / Sensitivity (dB) | 89.0 |
| Max Linear Excursion (Xmax) (mm) | 3.5 |
| Lowest frequency (Hz) | 50 |
| Highest frequency (Hz) | 15000 |
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