B2 Audio RIOT 4-Channel 1.8K 1800W 2-Ohm Class D Full Range Amplifier w/ RGB LED Illumination

B2 Audio RIOT 4-Channel 1.8K 1800W 2-Ohm Class D Full Range Amplifier w/ RGB LED Illumination

Sold by AudioSellerz.com

The B2 Audio RIOT 4-Channel 1.8K 1800W 2-Ohm Class D Full Range Amplifier w/ RGB LED Illumination is a car audio amplifier from B2 Audio, sold by Audio Sellerz. This page keeps the supplied product details and specifications intact so you can review the actual model information before ordering. Use the product details below to confirm power, impedance, dimensions, fitment, included parts, and other specifications that apply to this exact B2 Audio model.

B2 Audio Product Details & Specifications

• High Power Output: Delivers up to 1800W total (depending on impedance) to drive your audio system to new heights.
• Class D Efficiency: Ensures powerful performance with minimal heat generation, maximizing efficiency.
• RGB LED Lights: Customizable LED lighting to enhance the aesthetics of your car audio setup.
• 4-Channel Configuration: Perfect for powering multiple speakers or subwoofers for a balanced, high-performance sound.
• Adjustable Bass Boost: Fine-tune your bass to match your preferences with 0-12 dB of bass boost.
• Signal & Noise Performance: High signal-to-noise ratio ensures clean, clear sound.
• Durable & Compact Design: Built to last and designed to fit comfortably in tight spaces.
• Versatile Crossovers: Equipped with low-pass and Hi-Pass crossovers for precise sound control.

B2 Audio 1800W 2-Ohm Class D Half Bridge 4ch Amp w/ RGB LED Lights RIOT Series

This Listing Includes:

• (1) B2 Audio RIOT Series 1800 Watt 4-Channel Amplifier with RGB LED Lights

The B2 Audio RIOT Series 4-Channel Amplifier is engineered for efficient power delivery, system flexibility, and long-term reliability in a compact chassis. Built on a half-bridge Class D topology, this amplifier delivers strong, consistent output while minimizing heat buildup and electrical strain—making it well suited for daily-driven systems and space-conscious installs.

With flexible channel configurations, the RIOT 1800 can be used to power mids and highs, run active front stages, or bridge channels for higher-output applications. Integrated RGB LED lighting adds a clean visual upgrade with selectable sound-activated patterns or the option to disable lighting entirely for a stealth install.

For optimal performance and stability, upgrading your vehicle’s electrical system is recommended, especially when operating the amplifier at lower impedances or higher output levels.

Why a Half-Bridge Class D Design?

This amplifier uses a half-bridge Class D architecture, chosen for its balance of efficiency, durability, and real-world electrical compatibility.

Benefits of a half-bridge design include:

• Reduced heat generation, allowing the amplifier to run cooler under load


• Lower component stress, improving long-term reliability


• Efficient power usage, making better use of available system voltage


• Stable operation with stock or mildly upgraded electrical systems

The result is a 4-channel amplifier that delivers clean, controlled power while maintaining dependable performance in everyday applications.

Key Features

• Powerful multi-channel performance: 4 x 300W RMS at 4 ohms, 4 x 450W RMS at 2 ohms, or 2 x 900W RMS bridged at 4 ohms


• High-efficiency Class D circuitry for consistent output and reduced heat buildup


• Full crossover control with adjustable low-pass and high-pass filters (50 Hz to 5 KHz, 12 dB/oct)


• Integrated RGB LED illumination with multiple sound-activated lighting modes


• Smart protection system with power, protection, and clip indicators for safe operation


• Compact design for easier installation, measuring 13.82 x 4.92 x 2.24 inches


• 1-gauge power terminal with a 150A fuse rating for stable connections

Specifications

• Continuous Output Power (RMS) @ 4 Ohm: 4 x 300W


• Continuous Output Power (RMS) @ 2 Ohm: 4 x 450W


• Continuous Output Power (RMS) @ 4 Ohm Bridged: 2 x 900W


• Circuit Configuration: HI-EF Class D


• Frequency Response: 10 Hz to 40 KHz (-3 dB)


• Signal to Noise Ratio: greater than 90 dB


• Input Sensitivity: 6 V to 0.4 V (RCA)


• High Level Input: 10 V to 0.8 V


• Crossover Circuit: 12 dB/oct


• Low Pass Crossover: 50 Hz to 5 KHz


• High Pass Crossover: 50 Hz to 5 KHz


• Power Terminal Gauge: 1 Gauge


• Operational Voltage: 10 V to 16 V


• Fuse Rating: 150 A

Dimensions:

• Length: 13.82"


• Width: 4.92"


• Height: 2.24"

Shop More B2 Audio & Related Car Audio Gear

Browse more B2 Audio products and compare car audio amplifiers at Audio Sellerz. For setup help, read the Audio Sellerz amplifier gain-setting guide.

Follow Audio Sellerz

Stay connected with Audio Sellerz for new products, car audio builds, install videos, demos, and updates:

Follow Audio Sellerz on Facebook
Follow Audio Sellerz on Instagram
Follow Audio Sellerz on TikTok
Subscribe to Audio Sellerz on YouTube