Description
DS18 SRW8.4D
The SRW8.4D is a compact but powerful 8‑inch shallow‑mount car subwoofer designed to deliver deep, punchy bass even in tight installation spaces. Featuring dual 4 Ω voice coils (4+4 Ω) for flexible amplifier wiring and a high‑temperature 1.5″ aluminum voice coil, this sub handles 150 W RMS and 300 W peak power—providing strong low‑end performance with controlled response. Built with a paper cone, rubber surround, and a 32 oz ferrite magnet, the SRW8.4D delivers bass from approximately 25 Hz to 250 Hz with 86 dB sensitivity, making it ideal for small enclosures or shallow boxes where space is limited. Its shallow mounting depth (about 2.95″ / 75 mm) and sturdy steel basket make it easy to install in cars, trucks, and compact audio setups while still producing rich, dynamic low frequencies.
Specifications
| Parameter | Value |
|---|---|
| SKU | SRW8.4D |
| Nominal Diameter | 8” / 203.3 mm |
| Nominal Impedance | 4 + 4 Ω |
| RMS Power Handling | 150 W |
| MAX Power Handling | 300 W |
| Sensitivity (1W/1M) | 86 dB |
| Frequency Response | 25 – 250 Hz |
| Recommended Low-Pass Crossover | 120 Hz |
Motor / Construction
| Parameter | Value |
|---|---|
| Voice Coil Diameter | 1.5” / 38.6 mm |
| Voice Coil Former Material | Aluminum |
| Winding Material | SV |
| Cone Material | Paper |
| Dust Cap Material | Paper |
| Surround Material | Rubber |
| Basket Material | Steel |
| Basket Color / Finish | Gloss Red |
| Magnet Material | Ferrite |
| Magnet Weight | 32 oz |
| Displacement Volume | 1.13 L / 0.039 ft³ |
Thiele & Small Parameters
| Parameter | Value |
|---|---|
| Equivalent Volume (VAS) | 6.7 L / 0.23 ft³ |
| Excursion (one way) Xmax | 12.5 mm |
| Free Air Resonance (FS) | 66 Hz |
| Mechanical Factor (QMS) | 6.122 |
| Electrical Factor (QES) | 0.9 |
| Total Q (QTS) | 0.785 |
| Moving Mass (MMS) | 55.916 g |
| Mechanical Mass without Air (MMD) | 52.383 g |
| Compliance (CMS) | 0.104 mm/N |
| Bl Factor (Bl) | 12.954 |
| Voice Coil Inductance (Le) | 17.5 mH |
| Diaphragm Area (Sd) | 213.82 cm² |
| DC Resistance (Re) | 3.4 + 3.4 Ω |
| Efficiency Bandwidth Product (EBP) | 73.3 |
Measurements / Dimensions
| Parameter | Value |
|---|---|
| Overall Diameter | 8.46” / 215 mm |
| Overall Depth | 3.46” / 88 mm |
| Front Mount Baffle Cutout | 7.12” / 181 mm |
| Mounting Depth | 2.95” / 75 mm |
| Motor Diameter | 4.72” / 120 mm |
| Gross Single Unit Weight | 6 lb |
| Single Unit Box Dimensions (W × L × H) | 8.75 × 8.75 × 4 in |
| Quantity of Units in Master Carton | 4 |
| Gross Master Carton Weight | 25 lb |
| Master Carton Dimensions (W × L × H) | 18 × 9.5 × 8.5 in |
Product Overview
8″ Car Subwoofer 300 Watts 4-Ohm DVC Shallow Mount
Introducing the SRW8.4D: DS18’s ultimate solution for car audio enthusiasts craving exceptional bass performance in tight areas.
Crafted as part of the renowned SRW bass series, this subwoofer epitomizes the perfect blend of power, performance, and affordability. Designed to excel in shallow sub frames, the SRW8.4D outshines its competitors, delivering booming bass that will leave you astounded. The large surround with flexible spider packs and the high-quality aluminum voice coil former work in perfect unison, maximizing the excursion capability and ensuring a deep, full-bodied bass response that will leave you craving for more.
DS18’s SRW8.4D subwoofer effortlessly delivers phenomenal bass response, boasting an impressive 300W of MAX power and 150W RMS power handling with absolute precision. What truly sets the SRW8.4D apart from the competition is its exceptional sensitivity rating of 86dB. This shallow mount subwoofer achieves an outstanding level of volume and power while operating within its compact frame.
Coming in both dual voice coil (DVC) and single voice coil (SVC) options, the SRW8.4D caters to your specific amplifier setup, ensuring you can maximize the power delivery to breathe life into every note of your favorite tunes.
Versatility is at the core of the SRW8.4D’s design, allowing you to install it effortlessly in compact places and requiring less box space compared to other subs. Its compact size provides you with countless placement options, enabling you to customize your car audio setup to perfection. Whether you choose a ported or sealed box, DS18’s SRW8.4D consistently delivers incredible bass that fills your vehicle’s interior, transforming every drive into an immersive concert-like experience.
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