Description

DS18 PRO-ZXI6.4BM
The PRO‑ZXI6.4BM is a 6.5″ pro‑audio mid‑bass loudspeaker designed for powerful mid‑bass punch and smooth midrange detail. Built with a robust motor structure and reinforced cone assembly, it delivers strong low‑frequency output ideal for pro audio systems, car audio upgrades, PA setups, and SPL‑oriented builds. Its durable construction and optimized voice coil ensure reliable performance even at high volumes.
Specifications
| Category | Specification |
|---|---|
| SKU | PRO-ZXI6.4BM |
| Nominal Diameter | 6.5″ / 165.1 mm |
| Nominal Impedance | 4 Ω |
| RMS Power Handling | 300 W |
| Maximum Power Handling | 600 W |
| Sensitivity (1W/1m) | 97 dB |
| Frequency Response | 100Hz–10KHz |
| Recommended High-Pass Crossover | 160 Hz |
Motor / Voice Coil Specifications
| Feature | Specification |
|---|---|
| Voice Coil Diameter | 1.5″ / 38.6 mm |
| Voice Coil Former Material | Glass Fiber |
| Winding Material | CCAW |
| Basket Material | Aluminum |
| Magnet Weight | 30 + 3 oz |
Thiele & Small Parameters
| Parameter | Value |
|---|---|
| Equivalent Volume (Vas) | 4.7 L / 0.165 ft³ |
| Excursion (Xmax) | 7.2 mm |
| Free Air Resonance (Fs) | 150 Hz |
| Mechanical Factor (Qms) | 9.696 |
| Electrical Factor (Qes) | 0.589 |
| Total Factor (Qts) | 0.556 |
| DC Resistance (Re) | 3 Ω |
Measurements
| Dimension / Feature | Value |
|---|---|
| Overall Diameter | 6.5″ / 166 mm |
| Front Mount Baffle Cutout | 5.78″ / 147 mm |
| Mounting Depth | 2.83″ / 72 mm |
| Overall Depth | 3.16″ / 80.5 mm |
| Product Weight | 5.5 lbs |
| Product Dimensions (W x L x H) | 7.25 x 7.25 x 3.75 in |
| Master Carton Weight | 45.5 lbs |
| Master Carton Dimensions | 15 x 15 x 8 in |
| Quantity per Master Carton | 8 |
| Sold In | Piece |
Product Overview
6.5” Mid-Range Loudspeaker with Bullet 600W 4-Ohm
Introducing the DS18 PRO-ZXI6.4BM – the ultimate audio solution for the music lover who demands nothing but the best! With its sleek black basket face and bullet dust cap, this speaker not only looks great but also sounds phenomenal, delivering clear, crisp, and powerful mid and high range frequencies with ease.
Designed with the audio enthusiast in mind, the ZXI series takes Pro Audio to new heights of elegance, clarity, and loudness. The PRO-ZXI6.4BM is perfect for anyone who wants unparalleled volume and sound quality without sacrificing efficiency or performance.
The bullet design of the DS18 PRO-ZXI6.4BM helps enhance its frequency response, which ranges between 100Hz and 10KHz, and improves its ability to handle mid-range frequencies. The bullet shape of the dust cap allows for smoother and more efficient sound dispersion, which helps to minimize distortion and improve clarity, even at higher volumes.
With a sensitivity rating of 97dB, this speaker is highly efficient and requires less power to achieve the same volume as less sensitive speakers. This translates to a cleaner and clearer sound with less distortion, even at high volumes.
The PRO-ZXI6.4BM’s magnet weighs in at a light 30 Oz + 3 Oz, constructed from high-quality ferrite, ensuring that it can handle the power thrown at it efficiently. Its 2.83″ mounting depth makes installation a breeze, allowing you to easily upgrade your car’s audio system without breaking a sweat.
The PRO-ZXI6.4BM is the perfect addition to any audio system, offering a premium listening experience that is unmatched by other speakers on the market.



















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