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The F4 is an exact duplicate of the very popular NXL-400.4 but now offered in flat mount configuration so you can keep a flush and clean look to your install. This 4 channel amplifier is the go to source to power all your DS18 marine speakers as all are an amazing fit with this sleek and powerful hydro amp.
| Power Output @ 2 ohms | 160Wx4CH |
| Power Output @ 4 ohms | 100Wx4CH |
| Bridge Power Output @ 4 ohms | 320Wx2CH |
| Total Harmonic Distortion | <0.1% |
| S/N Ratio Red 1W @ 4 ohms | 90dB |
| Gain Range | 0.2-6V |
| Crossover Range | 40 - 400Hz |
| Frequency Range | 20Hz - 20KHz |
| Bass Boost | 0-18dB (Rear CHs) |
| Forced Cooling System | N/A |
| Bass Remote Control | N/A |
| Topology Operation | Full Range Digital |
| Dimensions (MM) | 238 x 135 x 41 |
| SKU | NXL-F4 |
|---|---|
| POWER OUTPUT 2 Ω | 4 X 160W |
| POWER OUTPUT 4 Ω | 4 X 100W |
| BRIDGE POWER OUTPUT AT 4 Ω | 2 X 320W |
| TOTAL HARMONIC DISTORTION | <0.1% |
| S/N RATIO REF 1W AT 4 Ω | 90dB |
| GAIN RANGE | 0.2-6V |
| CROSSOVER RANGE | 40-400Hz |
| FREQUENCY RANGE | 20-20KHz |
| BASS BOOST | 0-18dB (REAR CHs) |
| FORCED COOLING SYSTEM | N/A |
| BASS REMOTE CONTROL | N/A |
| TOPOLOGY OPERATION | FULL RANGE DIGITAL |
| DIMENSIONS(MM) | 238 x 135 x 41 |
| Product Weight | 4.5 lbs |
| Product Dimensions | 11.5 x 7.5 x 4.25 |
| M/C Weight | 18 lbs |
| M/C Dimensions | 18 x 12 x 8.5 |
| M/C QTY | 4 |
| Sold In | Piece |
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.






