B2 Audio RIOT-2.5 Mini Woofer System 3D-Printed Box, Amp & Enclosure DIY Project

• All-in-One Mini Audio System – Includes two B2 Audio RIOT-2.5 mini woofers, a dual-ported 3D-printed sub box, Daakro ZK-1002T amplifier, and custom amp enclosure.
• Compact Powerhouse – Delivers rich midbass, clear highs, and deep low-end punch in a small, lightweight design perfect for RC cars, desktops, or DIY builds.
• Precision 3D Printing – Custom enclosures engineered for airflow, cooling, and strength while showcasing a clean professional look with the B2 Audio logo.
• Durable Components – Aluminum baskets, paper cones, and high-efficiency coils ensure reliability and clarity even at higher volumes.
• Plug-and-Play Design – Optimized to work seamlessly together for easy installation, professional sound, and premium B2 Audio performance right out of the box.

B2 Audio RIOT-2.5 Mini Woofer System 3D-Printed Box, Amp & Enclosure DIY Project

This Listing Includes:

• (2) B2 Audio RIOT-2.5 Mini Woofer 2.5" 4 Ohm Loudspeakers 20W RMS Aluminum Basket


• (1) Dual Ported 3D-Printed Subwoofer Enclosure for B2 Audio RIOT-2.5


• (1) Daakro ZK-1002T Amplifier


• (1) Custom 3D-Printed B2 Audio Amp Box for ZK-1002T Amplifier

This kit brings together everything needed to build a compact Bluetooth-powered speaker setup using the B2 Audio RIOT 2.5 platform.

The RIOT 2.5 is a 2.5" speaker with a subwoofer-inspired design, offering a bold look in a small format. The dual configuration provides more output and presence than a single-speaker build while still keeping the overall project compact and desktop-friendly.

The included dual 3D printed enclosure and amplifier case provide a clean foundation for your build, while the ZK-1002T Bluetooth amplifier powers the system.

Just add a compatible 12–24V DC power supply and complete the wiring.

Specifications:

• Woofer Size: 2.5" (x2)


• Power Handling: 20W RMS / 40W Max per woofer


• Impedance: 4 Ohm


• Voice Coil: 0.8" 4-layer aluminum


• Basket: Black powder-coated aluminum


• Sensitivity: 76.4 dB


• Fs: 121.6 Hz


• Mount Depth: 53mm


• Enclosure Type: Dual Ported, 3D-Printed Composite


• Amp Model: Daakro ZK-1002T


• Amp Box Dimensions: 4.08" L x 3.2" W x 1.3" H


• Amp Box Weight: 2 oz


• System Compatibility: Ideal for custom mini audio builds, RC setups, desktop systems

Dimensions:

• Complete Kit (approx. packaged): 10" L x 8" W x 6" H


• Total Weight: 3.6 lbs

The ultimate mini audio setup. Compact, precise, and professionally engineered, this all-in-one B2 Audio system brings power, clarity, and innovation to any small-scale sound project.