DD AUDIO 715g-D4 – 38 cm Subwoofer 2000 WRMS 2 x 4 Ohm
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Delivery information
Delivery information
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Description
Description
715g-D4: Reinforced Motor and 4-Ohm Dual Voice Coil
A 38 cm subwoofer delivering 2000 W RMS, with a 3-inch voice coil, triple-magnet structure, and 30 mm Xmax.
Highlights
-
G-Series Motor
Longer voice coils, thicker top plate, and deeper air gap to support the increased excursion. -
Triple-Magnet Structure
A reinforced magnetic assembly designed to improve moving coil control. -
Redesigned Surrounds
Tall double-stitched upper surround and multilayer lower surround to guide cone movement. -
D4 Dual Voice Coil
Two 4-Ohm voice coils to adapt the connection to the characteristics of the chosen amplifier.
Description
The DD AUDIO 715g-D4 is a 15-inch subwoofer, or approximately 38 cm, designed for a custom-built bass enclosure installation. Its rated power is 2000 W RMS, with a peak power of 4500 W. This D4 version features a 2 × 4-Ohm dual voice coil and is sold individually.
The 700 G generation features an evolved motor: the moving coils are longer, the top plate is thicker, and the air gap is deeper. The reinforced magnetic assembly supports the increased excursion while promoting heat dissipation and coil control. Available at Sound Auto Concept, the 715g-D4 offers a documented technical foundation for sizing a suitable bass-reflex enclosure.
- 76 mm moving coil, or 3 inches.
- Triple-magnet motor structure.
- Taller upper surround, attached to the cone with double stitching.
- Multilayer lower surround for moving coil guidance.
- Recommended bass-reflex enclosure volume: 3.0 to 6.0 cubic feet.
Technical Specifications
| Identification and Power | |
|---|---|
| Brand | DD AUDIO |
| Model | 715g-D4 |
| Reference | DD715g-D4 |
| Type | Subwoofer |
| Rated Diameter | 15 inches / 381 mm / approximately 38 cm |
| RMS Power | 2000 W |
| Peak Power | 4500 W |
| Moving Coil Diameter | 3 inches / 76 mm |
| Impedance | D4: 2 × 4-Ohm dual voice coil |
| Motor | Triple-magnet structure |
| Packaging | 1 piece |
| Weight | 20 kg |
| Acoustic and Mechanical Parameters | |
| Piston Diameter | 12.75 inches |
| Fs | 30 Hz |
| Qms | 6.463 |
| Qes | 0.578 |
| Qts | 0.514 |
| Vas | 65.47 liters |
| Xmech | 100 mm |
| Xmax | 30 mm |
| Dimensions and Bass-Reflex Enclosure | |
| Outer Frame Diameter | 15.375 inches |
| Outer Frame Diameter with Gasket | 15.563 inches |
| Mounting Diameter | 13.875 inches |
| Mounting Depth | 10 inches |
| Motor Diameter | 7.562 inches |
| Motor Depth | 4.625 inches |
| Subwoofer Displacement | 0.23 cubic feet |
| Recommended Bass-Reflex Enclosure Volume | 3.0 to 6.0 cubic feet |
Why Choose It
- For a bass installation around a 38 cm subwoofer accepting 2000 W RMS.
- For the D4 2 × 4-Ohm dual voice coil configuration, distinct from the D2 version.
- To benefit from the mechanical improvements of the G Series: reinforced motor and surrounds adapted to the excursion.
- To design a bass-reflex enclosure using the provided Thiele-Small parameters and mounting dimensions.
DD AUDIO 715g-D4 – 38 cm Subwoofer 2000 WRMS 2 x 4 Ohm
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