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.

Disclaimer: Does NOT come with screws or mounting hardware. 12–24V DC power supply NOT included.

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.

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

• Visa
• Mastercard
• American Express
• Discover
• Diners Club

Digital Wallets

• Amazon Pay
• Apple Pay
• Meta Pay (formerly Facebook Pay)
• Google Pay
• Shop Pay
• PayPal

International Payment Methods

• Bancontact
• iDEAL

Bank Transfers

• Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

• Klarna
• Affirm
• Sezzle
• Snap
• Acima
• Tiptop

If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

• Standard Shipping: Free for orders over $100.
• Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

• Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
• Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

What Happens If My Package Is Undeliverable?

If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.

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