PRO 8" Slim Water-Resistant Midrange Loudspeaker | 250W RMS 4-Ohm
PRO 8" Slim Water-Resistant Midrange Loudspeaker | 250W RMS 4-Ohm
Product Overview
DS18 PRO-SM8.4
8" Shallow Water-Resistant Midrange Loudspeaker | 500W MAX | 4Ω
Our PRO-SM8.4 is the ultimate midrange speaker for motorcycles, powersports and off-road applications that want powerful, weather-resistant performance.
Optimized for Outdoor Performance
This 8” shallow-mount midrange speaker handles 250W RMS and 500W MAX at 4 ohms. With a wide frequency response of 65Hz–12kHz and a sensitivity of 97dB, it cuts through all noise easily.
Built to Withstand the Elements
The PRO-SM8.4 uses a water-resistant paper cone and dust cap, paired with a coated cloth surround to protect against whatever the road throws at you. At just 2.5” mounting depth and a 7” cutout diameter, it’s designed to fit tight installs without compromise.
Get the PRO-SM8.4 and give your system the volume it needs to stand out!
Key Features
- 8” Shallow Midrange Speaker 500W MAX / 250W RMS
- 4-Ohm Impedance for Easy Amplifier Matching
- Water-Resistant Cone, Dust Cap, and Cloth Surround
- High Sensitivity (97dB) for Clear, Loud Output
- 1.5” Kapton Voice Coil with 25oz Ferrite Magnet
- 2.5” Mounting Depth for Versatile Install Options
Specifications
| Nominal Diameter | 8" / 203.2mm |
|---|---|
| Nominal Impedance | 4-Ohm |
| RMS Power Handling | 250W |
| MAX Power Handling | 500W |
| Sensitivity (1w/1m) | 97dB |
| Frequency Response | 65Hz - 12KHz |
| Recommended HI Pass Crossover | 160 Hz |
| Pair or Single | Single |
| Grill Included | No |
| Voice Coil Water Protection | No |
| Water-Resistant Rating | N/A |
| Voice Coil Diameter | 1.5" / 38.1mm |
| Voice Coil Former Material | Kapton |
| Winding Material | CCAW |
| Cone Material | Water Resistant Paper |
| Surround Material | Coated Cloth |
| Basket Material | Steel |
| Basket Color/Finish | Gloss Red |
| Magnet Material | Ferrite |
| Magnet Weight | 25 Oz |
| Equivalent Volume | 24.96L / 0.881f3 |
| Excursion (one way) | 1.3 mm |
| Free Air Resonance | 110Hz |
| Mechanical Factor (Qms) | 8.062 |
| Electrical Factor (Qes) | 1.024 |
| Total Factor (Qts) | 0.898 |
| Mechanical Mass | 10.132g |
| Mechanical Compliance | 0.416mm/N |
| BL Factor | 3.027 |
| Voice Coil Inductance | 0.364mH |
| Cone Area | 213.82cm2 |
| DC Resistance | 3.2 ohms |
| Mechanical Mass w/o Air | 9.98g |
| Overall Diameter | 8.23" / 209mm |
| Overall Depth | 2.7" / 69mm |
| Front Mount Baffle Cutout | 7" / 180mm |
| Mounting Depth | 2.5" / 63mm |
| Motor Diameter | 4.72" / 120mm |