Description
DS18 PRO-X8.4BM
The DS18 PRO‑X 8″ Mid-Range Loudspeaker with Bullet is an 8-inch, 4‑ohm mid-range speaker designed for car audio enthusiasts seeking clear, punchy, and dynamic midrange performance. Rated at 275 W RMS and 550 W peak power handling, this bullet-style speaker delivers focused and high-output mid frequencies with minimal distortion. Its rugged cone, durable frame, and high-temperature voice coil make it ideal for doors, rear decks, or custom enclosures where precise mid-range projection is essential. Perfect for daily driver upgrades, SPL-focused builds, or professional audio applications, the PRO‑X 8″ ensures clean, articulate sound and long-lasting performance.
Specifications
| Parameter | Value |
|---|---|
| SKU | PRO-X8.4BM |
| Nominal Diameter | 8″ / 203 mm |
| Nominal Impedance | 4 Ohms |
| RMS Power Handling | 275 W |
| Maximum Power Handling | 550 W |
| Sensitivity (1w/1m) | 97 dB |
| Frequency Response | 115 Hz – 16 kHz |
| Recommended Hi-Pass Crossover | 120 Hz |
| Sold In | Single |
Motor & Construction
| Component | Specification |
|---|---|
| Voice Coil Diameter | 1.5″ / 38.6 mm |
| Voice Coil Former Material | Kapton |
| Winding Material | CCAW |
| Basket Material | Steel |
| Magnet Weight | 30 oz |
Thiele & Small Parameters
| Parameter | Value |
|---|---|
| Equivalent Volume (Vas) | 7.67 L / 0.271 ft³ |
| Excursion (Xmax) | 9.3 mm |
| Free Air Resonance (Fs) | 127 Hz |
| Mechanical Q (Qms) | 8.693 |
| Electrical Q (Qes) | 0.776 |
| Total Q (Qts) | 0.712 |
| DC Resistance (Re) | 3.3 Ohms |
Measurements & Packaging
| Measurement | Value |
|---|---|
| Overall Diameter | 8.22″ / 209 mm |
| Front Mount Baffle Cutout | 7.17″ / 182 mm |
| Mounting Depth | 3.2″ / 82 mm |
| Overall Depth | 3.5″ / 88.6 mm |
| Product Weight | — |
| Product Dimensions | 21 × 9 × 3.75 in |
| Master Carton Weight | 63 lbs |
| Master Carton Dimensions | 21.75 × 18.25 × 8 in |
| Master Carton Quantity | 4 |
Product Overview
8″ Mid-Range Loudspeaker With Bullet 275W RMS 4-Ohm
The PRO-X8.4BM is an 8″ mid-range loudspeaker that delivers 275W RMS and 550W MAX power, giving your build raw, punchy sound with pro-level clarity.
Bullet Dust Cap. Bigger Sound.
A high-efficiency bullet-style aluminum dust cap helps project sound further and sharper, giving you hard-hitting midrange your system craves. Its steel basket not only reinforces strength but looks as bold as it sounds.
Push It To The Limit
With a 1.5″ 4-ohm voice coil wound on a Kapton former, this speaker handles serious heat. Pair that with a 97 dB sensitivity and you’ve got volume that stays clean — no distortion, no drop-off.
Tuned for Tight Installs. Ready for Power.
The PRO-X8.4BM fits flush with a 3.2″ mounting depth and packs a 30 oz ferrite magnet to drive performance and reliability. Covering 115Hz–16KHz, it captures the full midrange with precision and power.
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