DS18 NXL-M2 2-Channel Marine Amplifier
Key features
- 2-channel Class D amplification
- 400W RMS per channel at 2 ohms; 250W RMS per channel at 4 ohms
- Total Watts (Peak): 1500W
- RMS Power @ 4 ohm: 2 x 250W
- RMS Power @ 2 ohm: 2 x 400W
- RMS Power @ 4 ohm Bridge: 1 x 880W
DS18 NXL-M2 2-Channel Marine Amplifier is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Add dedicated two-channel power to your marine audio system with the DS18 NXL-M2 2-channel marine amplifier. Its Class D design delivers 400W RMS per channel at 2 ohms or 250W RMS per channel at 4 ohms.
Use its separate amplified channels to power multiple speakers from one unit, with selectable HPF, LPF, or FULL crossover settings for system setup.
Key Features & Benefits
- Two-channel Class D output: Choose stereo amplification for speakers connected to the amplifier.
- Power at two loads: Match the published per-channel RMS rating to speakers with a 2-ohm or 4-ohm impedance.
- Selectable crossover: Choose HPF, LPF, or FULL and adjust the filter within the listed range.
- Marine-rated construction: IP55 water-splashing resistance, UV protection, and coated PCB help suit marine installations.
- Input options: Use low-level RCA or two-channel speaker-level input, depending on your source connection.
- Protection indicators: Clipping, protect, and power LEDs help you monitor amplifier status.
Technical Specifications
| Total Watts (Peak) | 1500W |
|---|---|
| RMS Power @ 4 ohm | 2 x 250W RMS |
| RMS Power @ 2 ohm | 2 x 400W RMS |
| Power @ 4 ohm Bridge | 1 x 880W |
| Frequency Response | 20Hz - 20KHz |
| Signal to Noise Ratio | >90dB |
| Efficiency @ 4ohm | >90% |
| Channel Separation | >55dB |
| Total Harmonic Distortion (THD) | <0.15% |
| Low Level Input Range | 0.2V-6V |
| High Level Input | Yes: ≥5V |
| Selectable X-Over | HPF/LPF/FULL |
| X-Over Filter Range | 40Hz - 2KHz |
| Bass Boost Range | 0-12dB |
| Bass Boost Frequency | 45Hz ±5Hz |
| Phase Selector | No |
| Amplifier Class | Digital (D) |
| Amplifier Type | Stereo Full Range |
| Number of Channels | 2 Channels |
| Minimum Impedance | 2 ohm (Stereo) / 4 ohm (Bridge) |
| Led Indicator | Clipping / Protect / Power |
| Power Input Terminal Size | 4 Ga |
| Fuse Size | 80A (2x40A) |
| Thermal Protection | Yes |
| Over-Load Protection | Yes |
| DC Output Protection | Yes |
| Short Circuit Output Protection | Yes |
| Voltage Input Protection | Yes |
| Clipping Protection | Yes |
| Body Color / Finish | Gray+White / Aluminum+ABS |
| Water Resistant Rated | Yes, IP55 (Water Splashing) |
| PCB Layout Design | 4 Layers / Coated |
| RCA Output | Yes, 2 CH (Left / Right) |
| UV Compliant | Yes, UV Protected and PCB Coated |
| Input Sum Selector | N/A |
| Tiffany Style RCA | Yes |
| High Level Input | Yes, 2ch Speaker level |
| Stainless Steel Hardware | Yes, (Screws) |
| Potenciometers | High Quality Metal Knob |
| Remote Level Control | No |
| Overall Length | 9.6" / 245mm |
| Overall Wide | 4.5" / 116mm |
| Overall Height | 1.7" / 43mm |
| Heatsink Length | 8.6" / 220mm |
Why Choose This Product?
The NXL-M2 combines two amplified channels with selectable crossover modes and both low- and high-level inputs. Its published ratings make it easier to compare output against your speaker impedance before choosing an amplifier.
Its IP55 water-splashing rating and UV-protected, coated PCB address marine-use considerations. The rating does not mean the amplifier can be submerged.
Installation & Compatibility Notes
Check the 9.6" x 4.5" x 1.7" overall dimensions and mounting space before installation. Match speaker impedance to the operating mode: the minimum is 2 ohms in stereo or 4 ohms bridged.
Plan for the 4 Ga power input terminal and 80A (2x40A) fuse requirement. Follow the manufacturer instructions and keep connections protected from water; the amplifier is not intended for intentional submersion.
Frequently Asked Questions
What RMS output does the DS18 NXL-M2 provide?
It is rated at 2 x 250W RMS at 4 ohms and 2 x 400W RMS at 2 ohms. The listed bridged output is 1 x 880W at 4 ohms.
What is the minimum speaker impedance?
The minimum is 2 ohms for stereo operation and 4 ohms when bridged. Match your speaker load to the mode you plan to use.
Can I connect a source with speaker-level output?
Yes. The amplifier has two-channel speaker-level input, listed as ≥5V. It also has low-level input with a 0.2V-6V range.
Can the amplifier be submerged?
No. Its IP55 rating is specified for water splashing, and the installation guidance says not to intentionally submerge it.
What space and fuse should I plan for?
Allow for the listed overall dimensions of 9.6" x 4.5" x 1.7" and the 80A (2x40A) fuse requirement.
Explore More
Shop DS18 products at 12 Volt Outlet. Want to learn more about DS18? Explore our DS18 brand profile.





