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

Power:

• 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

Audio:

• 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

Features:

• 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
• Waterproof Rating: IP67

Bluetooth Specifications:

• 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

Measurement: 

• Overall Length: 7.87" / 200mm
  
• Overall Wide: 3.67" / 93.4mm
  
• Overall Height: 1.56" / 39.8mm
  
• Heatsink Length: 7.16" / 182mm
  

Shipping Policy

DBs Car Audio is proud to offer fast & free shipping on all items listed in our store!!

Shipping Methods and Transit Times

DBs Car Audio ships orders from our Kissimmee, Florida location. On occasion, orders will be fulfilled directly by the manufacturer or distributor in order to reduce the shipping time..

Order Tracking

Once an order has been shipped, we send our customers an email with the tracking number for the order. Click on the tracking link in the email to follow the location of the package on the carrier's website. If you did not receive a tracking number by email or need to confirm the tracking information, please contact call us at 1-800-927-9390

Signature Required

Due to the valuable contents of some shipments, DBs Car Audio will only require a signature upon delivery if the order is over $500. Such guidelines will not be overruled upon the customer's request. Please understand that this is a security measure taken by our Company to ensure the safe delivery of each package and guarantee excellent service. Many of our third-party shipping carriers and payment companies require signatures upon delivery to protect against fraud and theft. Customers may request a signature upon delivery by emailing us at dbscaraudiofl@gmail.com.

Shipping Policy Disclaimer

Delivery estimates do not apply to items shipped directly from the manufacturer, nor out-of-stock items. Some items that ship from the manufacturer can only be delivered to addresses within the 48 continental states.

Standard delivery time for domestic customers will average from 2-4 business days, but can take longer in some cases. Saturday, Sunday and national holidays are not considered business days for delivery purposes.

Our Shipping Guarantee applies only to shipments delayed due to our service failure. We will not guarantee shipments that are delayed due to an act of god (ex: weather), a catastrophic event, or failure by our delivery partners. Our guarantee is also voided if incorrect billing or shipping information is given and results in your order being delayed to its destination. Our guarantee is also void if no one is available to sign for shipment when delivery attempt is made if a signature is required.