DS18 NXL-F4 4-Channel Marine Amplifier — Flush Mount
Key features
- 4-channel Class D amplification
- 160W RMS per channel at 2 ohms; 100W RMS per channel at 4 ohms
- Flush-mount configuration
- 40–400Hz crossover range
- Power Output @ 2 ohms: 160Wx4CH
- Power Output @ 4 ohms: 100Wx4CH
DS18 NXL-F4 4-Channel Marine Amplifier — Flush Mount is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Power multiple marine speakers from one compact amplifier with the DS18 NXL-F4 4-channel marine amplifier. Its flush-mount configuration and Class D design deliver up to 160W RMS per channel at 2 ohms, with a 40–400Hz crossover range for system setup.
Key Features & Benefits
- Four amplified channels: Power multiple speakers from one unit.
- Class D design: Get four-channel amplification in a flush-mount configuration.
- Two per-channel power ratings: Output is 160W RMS per channel at 2 ohms or 100W RMS per channel at 4 ohms.
- Adjustable crossover range: Set the crossover within the 40–400Hz range to suit your installation.
- Rear-channel bass boost: Adjust bass boost from 0–18dB on the rear channels.
Technical Specifications
| Specification | Value |
|---|---|
| Amplifier | 4-channel Class D |
| 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 |
| Mounting Configuration | Flush mount |
| Dimensions (MM) | 238 x 135 x 41 |
Why Choose This Product?
The NXL-F4 gives you four separately amplified channels in one flush-mount unit. Its published power ratings make it easier to compare output at 2-ohm and 4-ohm loads when planning your speaker setup. The stated bridge output provides another rating to consider when reviewing the amplifier’s supported configurations.
Use the crossover range to make installation-specific adjustments, and note that bass boost applies to the rear channels. Match speaker impedance and crossover settings to your system rather than choosing settings by output rating alone.
Installation & Compatibility Notes
Check the amplifier’s 238 x 135 x 41 mm dimensions, along with wiring and fuse requirements, before installation. Follow the manufacturer’s instructions and keep electrical connections protected from water.
A marine rating does not replace proper installation or permit intentional submersion. Confirm speaker impedance and crossover settings for your installation.
Frequently Asked Questions
How much power does the DS18 NXL-F4 provide?
Its published output is 160W RMS per channel at 2 ohms and 100W RMS per channel at 4 ohms.
What is its bridged power rating?
The listed bridge power output is 320Wx2CH at 4 ohms. Follow the manufacturer’s instructions for installation and wiring.
What crossover range can I set?
The crossover range is 40 - 400Hz. Match the setting to your speaker installation.
What are the amplifier’s dimensions?
It measures 238 x 135 x 41 mm. Compare these dimensions with your planned mounting location.
Can the amplifier be submerged?
A marine rating does not permit intentional submersion. Keep connections protected from water and follow the manufacturer’s installation instructions.
Explore More
Shop the DS18 NXL-F4 at 12 Volt Outlet. Want to learn more about DS18? Explore our DS18 brand profile.





