B2 Audio Mono Amp 2500W 1-Ohm Class-D Half-Bridge RGB LED Lights REFURBISHED

• Powerful Performance: Delivers up to 1800W (or 2500W, depending on the model) of high-quality, consistent sound.
• Monoblock Design: Optimized for high-efficiency, delivering pure, focused power to a single channel.
• Compact & Versatile: Space-saving design without compromising on performance, ideal for any car audio setup.
• RGB LED Lighting: Customizable RGB LED lights for a professional and stylish installation with just a flick of a switch.
• Enhanced Efficiency: Engineered for maximum power output with minimal heat, ensuring long-lasting performance.

B2 Audio Monoblock Amp 2500W 1-Ohm Class-D Half-Bridge RGB LED Lights Refurbished

Professionally Refurbished

In perfect working condition

Has been mounted

Missing Bass Knob & Cable

Few cracks in the top clear plexiglass.

The top plexiglass panel has cloudy white residue or staining on the inside, near one of the internal capacitors.

Small scratches

Box has been opened

Refurbished items are not subject to returns. They are sold "As Is". All requests for returns will not be accepted.

This Listing Includes:

• (1) B2 Audio Riot Series 2500 watts Monoblock Amplifier with RGB LED Lights

The RIOT Series Monoblock Amplifiers are built to deliver serious power, efficiency, and reliability in a compact footprint. Designed around a half-bridge Class D topology, this amplifier provides stable, consistent output while keeping heat generation and electrical strain under control—making it an excellent choice for daily-driven systems and high-output bass setups alike.

With up to 2500W RMS at 1 ohm, the RIOT 2500 balances strong low-frequency performance with dependable operation across a wide range of electrical systems. The integrated RGB LED lighting adds a clean, professional look to your install, with selectable sound-activated patterns or the option to turn lighting off completely.

For best results, we recommend upgrading your vehicle’s electrical system. A stronger charging and battery setup helps ensure maximum output, improved stability, and long-term amplifier reliability.

Why a Half-Bridge Class D Design?

The RIOT Series uses a half-bridge Class D architecture, which is well-known for its balance of efficiency, durability, and electrical friendliness.

Key advantages of a half-bridge design include:

• Improved reliability under demanding loads by reducing component stress


• Lower heat output, helping the amplifier run cooler during extended play


• Efficient power delivery, making better use of available voltage


• Better compatibility with stock and mildly upgraded electrical systems

This design allows the amplifier to deliver strong, clean bass performance while maintaining consistent operation - especially important in real-world daily-use applications.

Features

• Input: RCA Signal Input for Left & Right Channel. A minimum of 0.2V input is required for correct operation.


• Power & Protection Indicator: Power LED, Blue light shows correct operation. Protect LED, Red light shows a general malfunction, a faulty connection, or thermal protection.


• Clip Indicator: The LED will light up if the signal is clipped. An occasional flashing light is acceptable, a constantly lit diode is not.


• Flash: Enables the sound-activated LED sequences with multiple patterns and colors. The LED can be switched off by keeping the button pressed for a few seconds.

Specifications

• Continuous Output Power (RMS) @ 4 Ohm 14.4V <1% THD: 800W


• Continuous Output Power (RMS) @ 2 Ohm 14.4V <1% THD: 1400W


• Continuous Output Power (RMS) @ 1 Ohm 14.4V <1% THD: 2500W


• Circuit Configuration: HI-EF Class D


• Frequency Response: 10 Hz - 250 Hz


• Signal to Noise Ratio: >90 DB


• Input Sensitivity: 6 V - 0.2 V


• High Level Input: 10 V - 0.6 V


• Crossover Circuit: 12 DB/OCT


• Low Pass Crossover: 50 Hz - 250 Hz


• Subsonic Crossover: 10 Hz - 50 Hz


• Phase: 0-180 Degrees


• Bass Boost: 0-12 DB


• Level Control with Clip: Included


• Power Terminal Gauge: 1 Gauge


• Operational Voltage: 10 V - 16 V


• Fuse Rating: 200 A

Dimensions:

• Length: 14.57"


• Width: 4.92"


• Height: 2.24"