NXL 4-Channel Full-Range Class D Waterproof IP67 Marine and Powersports NANO Amplifier with Bluetooth 5.1 Receiver Built-In
NXL 4-Channel Full-Range Class D Waterproof IP67 Marine and Powersports NANO Amplifier with Bluetooth 5.1 Receiver Built-In
Product Overview
DS18 NXL-N4BT
Ultra-Compact Waterproof 4-Channel Full-Range Amplifier with Bluetooth 5.1 Receiver Built-In
The NXL-N4BT takes a high-powered DS18 amplifier and integrates Bluetooth 5.1 streaming for full-range audio performance and wireless control in a sealed, IPX67-rated chassis.
4 Channel Power
With up to 1800W Peak, 4 x 100W RMS @ 4Ω, and 4x150W RMS @ 2Ω: this amplifier pushes full-range audio across your mids and highs leaving the perfect amount of headroom. Bridge to 2x300W RMS @ 4Ω for more flexibility in custom setups.
Seamless Bluetooth Streaming
Bluetooth 5.1 lets you stream directly from your phone or device with zero signal loss. With support for SBC/AAC codecs, 24-bit/48kHz audio, and A2DP 1.3.1, this amp delivers clean signal and rich fidelity wirelessly.
DSP-Level Control with Selectable Crossover
Fine-tune your output with built-in HPF, LPF, or Full range crossover settings, adjustable between 40–500Hz. Power components, coaxials, or a small sub with an amp that adapts to your system.
Marine Tough
Only 7.87” long and under 1.6” tall, the NXL-N4BT fits in gloveboxes, under seats, side panels: anywhere space is tight. And with thermal, overload, short circuit, and voltage protection built-in, you’ll stay powered safely on any terrain.
Wirelessly control your marine audio with DS18’s NXL-N4BT!
Key Features
- Built-In Bluetooth Receiver – Stream your favorite music wirelessly straight from your smartphone
- Ultra-Compact Size for Easy Installation
- Fully Aluminum Chassis Design
- IP67 Waterproof Rating
- Latest Full-Range Digital Design Based on IR Platform
Specifications
| SKU | NXL-N4BT |
|---|---|
| Total Watts (Peak) | 1800W |
| RMS Power @ 4 ohm | 4 x 100W |
| RMS Power @ 2 ohm | 4 x 150W |
| RMS Power @ 4 ohm Bridge | 2 x 300W |
| Frequency Response | 20Hz-20KHz |
| Signal to Noise Ratio 1W @ 4Ω | 90dB |
| Total Harmonic Distortion (THD) | 0.1% |
| Low Level Input Range | 200mV-5V |
| Selectable X-Over | HPF/LPF/FULL |
| X-Over Filter Range | 40-500Hz |
| Bass Boost Range | No |
| Infrasonic Filter | No |
| Bluetooth Name | DS18 NXL-N4BT |
| Version | 5.1 |
| Services | Audio Stream |
| Audio Protocols | A2DP1.3.1 |
| Audio Codec Supported | SBC / AAC |
| Sample Rate | 48k/bit |
| Bitrate | SBC 328kbps / AAC 576kbps |
| Bitrate Depth | 24bits |
| Range | 20Hz - 20kHz |
| Amplifier Class | Digital |
| Amplifier Type | Stereo Full Range |
| Number of Channels | 1 |
| Minimum Impedance | 2 Ohms (Stereo / 4 Ohms Bridge) |
| LED Indicator | Power / Protection |
| Power Input Size | Wired 8Ga OFC |
| Fuse Size | 25A |
| Thermal Protection | Yes |
| Overload Protection | Yes |
| Waterproof Rating | IP67 |
| Overall Length | 7.87" / 200mm |
| Overall Wide | 3.67" / 93.4mm |
| Overall Height | 1.56" / 39.8mm |
| Heatsink Length | 7.16" / 182mm |
| Gross Single Unit Weight | 2.8Lb / 1.3Kg |









