6x9” Water-Resistant Mid-Bass Loudspeaker | 150W RMS 4-Ohm
6x9” Water-Resistant Mid-Bass Loudspeaker | 150W RMS 4-Ohm
Product Overview
DS18 69PRO300MB-4
6x9” Water-Resistant Mid-Bass Loudspeaker – 300W Max – 4-Ohm
Tuned for loud, clean output in cars and motorcycles: DS18’s 69PRO300MB-4 hits harder and offers elite mid-bass performance without drawing insane amounts of power.
Effortless Loudness
Rated at 98dB, this speaker delivers massive volume using less power than other mid-bass drivers in its class. When installed in sealed or open-air environments, the 69PRO300MB-4 produces powerful impact that cuts through any road noise.
Road-Ready
Featuring a water-resistant coated paper cone and dust cap, this mid-bass driver is built to survive harsh outdoor conditions. Its heavy-duty design provides durability for performance in all elements.
Low-Distortion Performance
A precision-tuned copper demodulation ring widens the magnetic field and allows the voice coil to move smoothly, drastically reducing distortion at high volume. You get more accurate, harder-hitting mid-bass response from 50Hz to 12.5kHz.
Optimized for Power and Versatility
This speaker thrives in car door panels and motorcycle fairings where strong mid-bass is essential for a balanced sound system.
If you want a mid-bass speaker that outperforms ordinary speakers in every category—the 69PRO300MB-4 delivers.
Key Features
- Durable 6x9” 4-Ohm Build for efficient, long-lasting performance
- 98dB High Sensitivity for big volume with less power
- Water-Resistant Cone for reliable use in harsh conditions
- Copper Demodulating Ring for reduced distortion and cleaner mid-bass
- High-Impact Mid-Bass ideal for motorcycle fairings and cars
Specifications
| Nominal Diameter | 6x9" / 152x228mm |
|---|---|
| Nominal Impedance | 4 Ohms |
| RMS Power Handling | 150W |
| MAX Power Handling | 300W |
| Sensitivity (1w/1m) | 98dB |
| Frequency Response | 50Hz-12.5kHz |
| Recommended HI Pass Crossover | 80Hz |
| Sold in Pair or Single | Single |
| Grill Included | No |
| Demodulating Rings | Copper Ring |
| Cone Shape | Curvilinear |
| Speaker Terminals | Spade |
| Voice Coil Diameter | 1.5" / 38.6mm |
| Voice Coil Former Material | Kapton |
| Winding Material | CCAW |
| Cone Material | Paper With Water Resistant Coat |
| Dust Cap Material | Paper With Water Resistant Coat |
| Surround Material | Cloth |
| Basket Material | Steel |
| Basket Color/Finish | Satin Black |
| Magnet Material | Ferrite |
| Magnet Weight | 20 Oz |
| Displacement Volume | 0.48L / 0.016ft3 |
| Equivalent Volume | 11.61L / 0.41ft3 |
| Excursion (one way) | 1.6mm |
| Free Air Resonance | 100Hz |
| Mechanical Factor | 2.270 |
| Electrical Factor | 1.02 |
| Total Factor | 0.7 |
| Mechanical Mass | 11.74G |
| Mechanical Compliance | 0.18mm/N |
| BL Factor | 6.69 |
| Voice Coil Inductance | 0.31mH |
| Cone Area | 213.82 cm2 |
| DC Resistance | 3.2 Ohms |
| Overall Diameter | 6.4"x9.2" / 164x234mm |
| Overall Depth | 3.1" / 79mm |
| Front Mount Baffle Cutout | 5.7"x8.6" / 145x218mm |
| Mounting Depth | 3" / 75mm |
| Motor Diameter | 4.5" / 115mm |








