




Couldn't load pickup availability
Do you want more excursion, more thumping power, and to shake everyone's mirrors around you?
DS18 has the perfect subwoofer to satisfy all your bass head needs in the newly designed ZXI6.4D high excursion subwoofer. This monster mini sub packs a whopping 1.5 inch coil made to withstand high amounts of power with the utmost efficiency while producing thunderous distortion free bass.
This sub has a much lower than normal FS so it can be used in larger boxes with lower than normal tuning. Not only will this subwoofer slay the lows, it is versatile enough to also play higher frequencies with authority.
The ZXI subline is a great high excursion line of subwoofers that both handle great power and give you smooth clean bass while playing ultra low frequencies but also shine in the higher bass range as well. These subs work great in both sealed and ported boxes giving you many options for placement in any vehicle.
This 6.5 inch model comes dual 4 ohm and comes with a 1.5 inch voice coil that handles 300w RMS and 600w max power. The large foam surround and pressed paper cone works greatly together to deliver smooth crisp bass that can be heard strongly throughout the vehicle giving you an amazing bass experience.
Highlights
Key Features
Great for





| SPECIFICATIONS | |
| Nominal Diameter | 6.5" / 165.1mm |
| Nominal Impedance | 4 + 4 ohms |
| RMS Power Handling | 300w |
| MAX Power Handling | 600w |
| Sensitivity (1w/1m) | 87dB |
| Frequency Response | 35Hz-1.8KHz |
| Recommended Lo Pass Crossover | 90Hz |
| MOTOR | |
| Voice Coil Diameter | 1.5" / 38.6mm |
| Voice Coil Former Material | Black Aluminum |
| Winding Material | CCAW |
| Cone Material | Non-Pressed Paper |
| Dust Cap Material | PPI |
| Surround Material | Foam |
| Basket Material | Aluminum |
| Basket Color/Finish | Black Sandblasted |
| Magnet Material | Ferrite |
| Magnet Weight | 80 Oz (4 x 20 oz) |
| Displacement Volume | 0.63L / 0.022ft3 |
| MEASUREMENT | |
| Overall Diameter | 6.93" / 176mm |
| Overall Depth | 5.33" / 135.5mm |
| Front Mount Baffle Cutout | 5.78" / 146.8mm |
| Mounting Depth | 4.41" / 112mm |
| Motor Diameter | 4.72" / 120mm |
| SKU | ZXI6.4D |
|---|---|
| Nominal Diameter | 6.5" / 165.1mm |
| Nominal Impedance | 4 + 4 ohms |
| RMS Power Handling | 300W |
| Maximum Power Handling | 600W |
| Sensitivity (1w/1m) | 87dB |
| Frequency Response | 35Hz-1.8KHz |
| Recommended Lo Pass Crossover | 90Hz |
| Voice Coil Diameter | 1.5" / 38.6mm |
| Voice Coil Former Material | Black Aluminum |
| Winding Material | CCAW |
| Cone Material | Non-Pressed Paper |
| Dust Cap Material | PPI |
| Surround Material | Foam |
| Basket Material | Aluminum |
| Basket Color/Finish | Black Sandblasted |
| Magnet Material | Ferrite |
| Magnet Weight | 80 Oz (4 x 20 oz) |
| Displacement Volume | 0.63L / 0.022ft3 |
| Equivalent Volume Vas | 2.68L / 0.0948ft3 |
| Free Air Resonance Fs | 65Hz |
| Mechanical Factor Qms | 4.95 |
| Electrical Factor Qes | 1.021 |
| Total Factor Qts | 0.846 |
| Moving Mass Mms | 45.81g |
| Compliance Cms | 0.115mm/N |
| Bl Factor Bl | 6.409 |
| Voice Coil Inductance Le | 0.362 mH |
| Diaphragm Area Sd | 128.68cm2 |
| DC Resistance Re | 3.9+3.9 ohms |
| Efficiency Bandwidth Product EBP | 67.7 |
| Sealed Internal Volume | 11.3L / 0.4ft3 |
| Sealed Box Output Response F3 | 57.8Hz |
| Ported Internal Volume | 17L / 0.6ft3 |
| Port Size *Square (W x H x Long) | 0.73" x 6.85" x 6.24" / 18.5 x 174 x 158.6mm |
| Port Tuning Frequency FB | 50Hz |
| Ported Box Output Response F3 | 39Hz |
| Overall Diameter | 6.93" / 176mm |
| Overall Depth | 5.33" / 135.5mm |
| Front Mount Baffle Cutout | 5.78" / 146.8mm |
| Mounting Depth | 4.41" / 112mm |
| Motor Diameter | 4.72" / 120mm |
| Gross Single Unit Weight | 9.5 |
| Dimensions W x L x H | 7.25 x 7.25 x 6.25 |
| Quantity of Units in Master Carton | 4 |
| Gross Master Carton Weight | 39 |
| Master Carton Dimensions W x L x H | 15.25 x 8 x 13.5 |
Most products ship directly from our vendor warehouses or distributor network. Shipping times can vary depending on the brand, product size, availability, and destination.
Large or oversized items such as lift kits, wheels, tires, bumpers, exhaust systems, and audio enclosures may require additional handling time or freight shipping.
If there is ever an issue with availability, shipping cost, or delivery timing, we will contact you before moving forward with the order.
Returns may be accepted on most new, unused, unopened items within 30 days of delivery. Items must be in original packaging and in resellable condition.
Installed, used, damaged, missing-parts, electrical, special-order, clearance, or custom-built items may not be eligible for return.
Return shipping is normally the customer’s responsibility unless the return is due to our mistake, such as the wrong item being shipped.
Before sending anything back, please contact Kaos Offroad so we can review the order and provide return instructions. Returns sent without approval may be refused.
Some products are vehicle-specific. Please verify fitment before ordering. If you are unsure, contact us with your year, make, model, sub-model, and any relevant details before purchasing.
Original shipping charges, freight charges, and vendor restocking fees may be non-refundable depending on the item and supplier policy.






















