Description

DS18 ZXI-654
The ZXI-654 is a 6×5‑inch 2‑way coaxial car audio speaker pair designed to deliver balanced sound with punchy mids and clear highs, making it a reliable upgrade over standard factory speakers. Each speaker features a 4 Ω nominal impedance with 50 W RMS (150 W peak) power handling, offering efficient performance for both head units and compact amplifiers. With a frequency response ranging from 55 Hz to 20 kHz and 87 dB sensitivity, the ZXI-654 produces detailed, dynamic audio suitable for everyday listening and custom installations. The design incorporates treated paper woofers with rubber surrounds and Mylar dome tweeters to provide clarity across the audio spectrum. Built with sturdy steel baskets and included protective grills, the ZXI-654 is ideal for car doors, rear decks, or custom setups where full-range performance and reliability are essential.
Specifications
| Category | Specification |
|---|---|
| SKU | ZXI-654 |
| Nominal Diameter | 6.5 Inches / 165 mm |
| Nominal Impedance | 4 Ω |
| RMS Power Handling | 80 W |
| MAX Power Handling | 240 W |
| Sensitivity | 89 dB |
| Frequency Response | 40 Hz – 20 kHz |
| Recommended Hi-Pass | 60 Hz |
| Speaker Type | 2-Way |
Midrange
| Parameter | Specification |
|---|---|
| Voice Coil Diameter | 25.5 mm / 1 inch |
| Voice Coil Former Material | KSV |
| Winding Material | EISV |
| Cone Material | Glass Fiber |
| Surround Material | Rubber |
| Basket Material | Steel |
| Magnet Material | Barium Ferrite |
| Magnet Weight | 14.46 oz / 410 g |
Tweeter
| Parameter | Specification |
|---|---|
| Nominal Diameter | 25.4 mm / 1 inch |
| Voice Coil Diameter | 20.4 mm / 0.8 inch |
| Voice Coil Former Material | KSV |
| Winding Material | EISVM |
| Diaphragm Material | PEI |
| Magnet Material | Neodymium |
| Magnet Weight | 8.5 g / 0.3 oz |
Thiele & Small Parameters
| Parameter | Specification |
|---|---|
| Vas | 10.84 L |
| Excursion Xmax | 2.7 mm |
| Free Air Resonance Fs | 64 Hz |
| Mechanical Factor Qms | 9.44 |
| Electrical Factor Qes | 0.79 |
| Total Factor Qts | 0.73 |
| Mechanical Mass Mms | 13.72 g |
| Mechanical Compliance Cms | 444 mm/N |
| BL Factor | 5.1 |
| Voice Coil Inductance Le | 228 mH |
| Cone Area Sd | 131 cm² |
| DC Resistance Re | 3.5 Ω |
| Mechanical Mass without Air Mmd | 12 g |
Measurements
| Parameter | Specification |
|---|---|
| Overall Diameter | 6.50 inch / 165 mm |
| Overall Depth | 72 mm / 2.83 inch |
| Front Mount Baffle Cutout | 141 mm / 5.55 inch |
| Mounting Depth | 60 mm / 2.36 inch |
| Motor Diameter | 94 mm / 3.70 inch |
| Product Weight | 5.5 lbs |
| Product Dimensions | 15.75 x 7.75 x 3.75 inch |
| Master Carton Weight | 35 lbs |
| Master Carton Dimensions | 16.5 x 16.75 x 12.25 inch |
| Master Carton Quantity | 6 |
| Sold In | Pair |
Product Overview
Kevlar 6.5″ 2-Way Coaxial Car Speaker 240 Watts 4-Ohm
Experience music like never before with the DS18 ZXI-654 – the perfect solution for audiophiles looking to elevate their car audio system’s sound quality. This speaker is designed to deliver powerful sound with little to no distortion, ensuring an enhanced listening experience that will leave you wanting more.
The ZXI-654 features a Kevlar cone woofer with a rubber surround, the perfect combination for delivering precise and punchy bass responses. Kevlar is a durable and lightweight material that is commonly used in bulletproof vests: but is ideal for creating speaker cones due to its excellent strength-to-weight ratio. Combined with the rubber surround the ZXI-654 comes with reduces unwanted vibrations, resulting in a cleaner and more accurate sound.
The 2-way design on the ZXI-654 equips the 6.5” woofer with a 1” Neodymium Magnet Tweeter, which delivers unmatched clarity and detail in the higher end of the frequency range. Neodymium magnets are known for their lightweight and powerful properties, allowing the speaker to reproduce accurate high frequencies without increasing the overall weight of the speaker resulting in a more balanced and natural sound.
With frequency responses ranging from 40Hz – 20KHz, the ZXI-654 is built to deliver clear and powerful sound across the entire frequency spectrum.
No matter where your car takes you, DS18’s ZXI-654 will immerse you in the music like never before. Upgrade with DS18’s ZXI-654 and experience the difference today.


























Reviews
There are no reviews yet.