DS18 NXL-N4BT 4-Channel Marine Amplifier with Bluetooth
Key features
- 4-channel Class D amplification
- 150W RMS per channel at 2 ohms; 100W RMS per channel at 4 ohms
- Bluetooth 5.1 receiver built in
- Selectable HPF, LPF or full-range crossover; 40–500Hz range
- Total Watts (Peak): 1800W
- RMS Power @ 4 ohm: 4 x 100W
DS18 NXL-N4BT 4-Channel Marine Amplifier with Bluetooth is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Stream audio over Bluetooth and power multiple marine speakers with the DS18 NXL-N4BT 4-channel marine amplifier. Its built-in Bluetooth 5.1 receiver and selectable crossover options give you source and filtering choices in one compact amplifier.
Key Features & Benefits
- Four amplified channels: Run multiple speakers from one unit.
- Power at two impedances: Choose from 4 x 100W RMS at 4 ohms or 4 x 150W RMS at 2 ohms.
- Bluetooth 5.1 streaming: Send audio to the amplifier using a Bluetooth source.
- Selectable crossover: Choose HPF, LPF, or full-range operation, with a 40–500Hz filter range.
- Marine-rated enclosure: The amplifier carries an IP67 rating; proper installation is still important.
Technical Specifications
| Specification | Value |
|---|---|
| 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 |
| Bitrate | SBC 328kbps / AAC 576kbps |
| Bitrate Depth | 24bits |
| Amplifier Class | Digital |
| Amplifier Type | Stereo Full Range |
| 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 |
Why Choose This Product?
The NXL-N4BT combines four-channel amplification with Bluetooth streaming, so you can connect a Bluetooth audio source without relying on a separate Bluetooth receiver. Its selectable HPF, LPF, and full-range settings let you choose a crossover mode to suit your system setup.
Published ratings distinguish between stereo operation at 2 or 4 ohms and bridged operation at 4 ohms. That makes it easier to compare the amplifier’s output with the speaker load you plan to use.
Installation & Compatibility Notes
Check the 7.87" x 3.67" x 1.56" overall dimensions and mounting space before installation. The specifications list wired 8Ga OFC power input and a 25A fuse; follow the manufacturer instructions for installation.
Match speaker impedance and crossover settings to your installation. Keep connections protected from water. The IP67 rating does not permit intentional submersion.
Frequently Asked Questions
How much power does the DS18 NXL-N4BT produce?
Its published ratings are 4 x 100W RMS at 4 ohms and 4 x 150W RMS at 2 ohms. The bridged rating is 2 x 300W RMS at 4 ohms.
What speaker impedance does it support?
The listed minimum is 2 ohms in stereo and 4 ohms in bridge mode. Match the speaker load to the intended operating mode.
Can I stream audio to the amplifier?
Yes. It has built-in Bluetooth 5.1 audio streaming and supports A2DP1.3.1 with SBC and AAC codecs.
Which crossover settings are available?
Select HPF, LPF, or full-range operation. The listed crossover filter range is 40–500Hz.
Can the amplifier be submerged?
It has an IP67 waterproof rating, but the installation guidance does not permit intentional submersion. Protect connections from water.
Explore More
Shop the DS18 NXL-N4BT at 12 Volt Outlet. Want to learn more about DS18? Explore our DS18 brand profile (opens in a new tab).
