Professional Audio Solutions Since 1949 10 Inch (250 mm), 4 Ohm Dual Voice Coil Subwoofer
Brand Name
Red Line
Model #
250-SW04D-01
Part #
93052
In stock
$169.98
This Red Line subwoofer is designed for car or home audio, featuring a rigid black powder coated cast aluminum basket, a treated pulp cones with a polyether foam surround, and comes with a decorative rubber trim ring which aids enclosure sealing. Its dual voice coil 200-watt subwoofer is designed to use the energy from both the left and right channels simultaneously.
- Subwoofer
- 10" (250 mm) basket diameter
- 100 watts, 4 ohms, 88 dB SPL
- 2" copper voice coil, aluminum former
- Ferrite magnet, die cast aluminum basket
- Engineered Abaca fiber cone, polyether foam surround
MISCO engineers test and analyze the performance of these speakers using the world's most sophisticated loudspeaker measurement systems including the Klippel Analyzer and the Klippel QC, which are used to validate final design.
Download Product Specifications (PDF) »
| Brand Name | Red Line |
|---|---|
| Model # | 250-SW04D-01 |
| Size, Nominal (inch & mm) | 10" (250 mm) |
| Shape of Speaker | Round |
| Speaker Type | Subwoofer |
| Application | Auto / Motorcycle, High-End Audio and Home Theater, Home Audio |
| Environment | Indoor |
| RoHS Compliant | Yes |
| Nominal Impedance (Z) (Ω) | 4 + 4 |
| Rated Power IEC268-5 (W) | 100 Watts |
| Rated Impedance (Ω) | 4 + 4 |
| Continuous Power (W) | 100 |
| Program Power (W) | 200 |
| Frequency Range (Hz) | 20 - 200 |
| Sensitivity (dB SPL) ¹ | 88 |
| Resonant Frequency (Fs) (Hz) +/- 15% | 31 |
| DC Resistance (Re) (Ω) | 1.9 |
| Voice Coil Inductance (Le) (mH) | 24.81 |
| Mechanical Q Factor (Qms) | 6.96 |
| Electrical Q Factor (Qes) | 0.39 |
| Total Q Factor (Qts) | 0.37 |
| Mechanical Resistance (Rms) (kg/s) | 2.94 |
| Compliance Equivalent Volume (Vas) (L) | 39.27 |
| Suspension Compliance (Cms) (mm/N) | 0.26 |
| Surface Area of Diaphragm (Sd) (cm²) | 330.1 |
| Moving Mass (Mms) (gm) | 106.6 |
| Magnetic Gap Height (mm) | 9.5 |
| Coil Winding Height (mm) | 40.3 |
| Maximum Linear Excursion (Xmax) (mm) | 15.4 |
| Motor Force Factor (BL) (T•M) | 9.9 |
| Efficiency (η₀) (%) | 39.27 |
| Efficiency Bandwidth Product (EBP) (Fs/Qes) | 77.7 |
| Basket Type | Die cast aluminum basket with black powder coat finish |
| Terminal Size (mm) | Knurled push style spring connectors |
| Voice Coil Diameter (mm) | 51.3 |
| Voice Coil Wire Material | Round copper wire |
| Voice Coil Former Material | Aluminum |
| Voice Coil Winding | Dual winding, four layers total |
| Magnet Material | Ferrite |
| Magnet Weight (g) | 2166 |
| Cone Body Material | Abaca fiber with wet look treat |
| Cone Surround Material | Heavy-duty polyether foam |
| Dust Cap Material | Inverted engineered paper dome |
| Spider Material | Durable polycotton |
| Net Weight (kg) | 5.37 |
| Technical Notes | ¹ Sensitivity is measured with 2.83 volt input, measured on-axis at 1 meter distance |