Description
DS18 PRO-ZT6SL
The DS18 PRO-ZT6SL is a 6.5-inch single 4-ohm high-excursion subwoofer designed for car audio enthusiasts who want tight, punchy, and precise low-frequency performance in compact setups. Rated at 300 W RMS and 600 W peak power handling, this subwoofer delivers strong, controlled bass with excellent efficiency. Its durable construction ensures reliability for daily driver systems, custom SPL builds, or high-performance car audio setups. Ideal for sealed or ported enclosures, the PRO-ZT6SL provides deep, impactful bass down to approximately 50 Hz, making it perfect for small car audio systems seeking maximum low-end performance.
Specifications
| Specification | Value |
|---|---|
| Nominal Diameter | 6.5 Inch / 165.1 mm |
| Nominal Impedance | 4 Ohms |
| RMS Power Handling | 200 W |
| Max Power Handling | 400 W |
| Sensitivity (1W/1M) | 95 dB |
| Frequency Response | 80 Hz – 20 kHz |
| Recommended Hi-Pass Crossover | 120 Hz |
| Sold As | Single |
| Grill Included | No |
| Voice Coil Water Protection | No |
| Water-Resistant Rating | IP32 |
MOTOR & CONE SPECIFICATIONS
| Specification | Value |
|---|---|
| Voice Coil Diameter | 1.5 Inch / 38.1 mm |
| Voice Coil Former Material | Kapton |
| Winding Material | CCAW |
| Cone Material | Water-Resistant Paper |
| Surround Material | Treated Cloth |
| Basket Material | Steel |
| Basket Finish / Color | Glossy Black |
| Magnet Material | Ferrite |
| Magnet Weight | 21 Oz |
TWEETER SPECIFICATIONS
| Specification | Value |
|---|---|
| Voice Coil Diameter | 1 Inch / 25.4 mm |
| Voice Coil Former Material | Kapton |
| Winding Material | CCAW |
| Diaphragm Material | Aluminum Alloy |
| Magnet Material | Neodymium (N35H) |
| Magnet Weight | 0.44 Oz |
THIELE & SMALL PARAMETERS
| Parameter | Value |
|---|---|
| Equivalent Volume (Vas) | 2.97 L / 0.785 ft³ |
| Excursion (Xmax, one way) | 1.5 mm |
| Free Air Resonance (Fs) | 150 Hz |
| Mechanical Factor (Qms) | 7.186 |
| Electrical Factor (Qes) | 0.681 |
| Total Factor (Qts) | 0.622 |
| Mechanical Mass (Mms) | 8.809 g |
| Mechanical Compliance (Cms) | 0.119 mm/N |
| BL Factor (BL) | 6.521 |
| Voice Coil Inductance (Le) | 0.129 mH |
| Cone Area (Sd) | 132.73 cm² |
| DC Resistance (Re) | 3.2 Ohms |
| Mechanical Mass w/o Air | 7.081 g |
MEASUREMENTS
| Specification | Value |
|---|---|
| Overall Diameter (Without Grill) | 6.57 Inch / 167 mm |
| Overall Depth (Without Grill) | 3 Inch / 78 mm |
| Front Mount Baffle Cutout | 5.7 Inch / 145 mm |
| Mounting Depth | 2.15 Inch / 55 mm |
| Motor Diameter | 4.3 Inch / 110 mm |
Product Overview
The PRO-ZT6SL gives you full-size output in a super shallow 2.15” profile, built to fit tight spaces without sacrificing volume or clarity.
Shallow Build
At just 2.15” mounting depth, the PRO-ZT6SL is made for motorcycles, doors, pods, and custom panels where space is limited.
2-Way Power
A built-in bullet tweeter with neodymium magnet delivers crystal-clear highs. Combined with a 6.5” mid-range cone, the PRO-ZT6SL plays strong from 85Hz–20kHz, giving you clean vocals and sharp detail in one drop-in speaker.
Engineered for Real-World Use
The water-resistant cone and treated cloth surround are made to withstand moisture and the pressure of daily use.
Let It Rip
With 200W RMS / 400W MAX, 4-ohm impedance, and 96.5dB sensitivity, this speaker gets loud fast, even on lower power. It’s the perfect blend of output and efficiency in a frame that fits anywhere.
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