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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
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Description
B2 Audio RIOT-2.5 Mini Woofer 3D-Printed Box, Amp & Enclosure DIY ProjectPOWERFUL MINI WOOFER PERFORMANCE: The 2. 5" B2 Audio RIOT 2. 5 loudspeaker delivers 20W RMS 40W Max with clean mid bass and crisp highs, featuring a durable aluminum basket and paper cone for pro grade sound in a small format. BLUETOOTH 5. 0 + AUX CONNECTIVITY: Stream wirelessly or connect directlythis 100W+100W 2 channel Class D amplifier features Bluetooth 5. 0 and AUX inputs with treble bass controls for precise audio tuning. Tinkerers: Perfect for
- POWERFUL MINI WOOFER PERFORMANCE: The 2.5" B2 Audio RIOT-2.5 loudspeaker delivers 20W RMS / 40W Max with clean mid-bass and crisp highs, featuring a durable aluminum basket and paper cone for pro-grade sound in a small format.
- BLUETOOTH 5.0 + AUX CONNECTIVITY: Stream wirelessly or connect directly—this 100W+100W 2-channel Class-D amplifier features Bluetooth 5.0 and AUX inputs with treble/bass controls for precise audio tuning.
- Tinkerers: Perfect for tech tinkerers and builders exploring high-performance mini audio systems. Experiment with Bluetooth amps, subwoofers, and 3D-printed enclosures to create custom sound solutions that push the limits of compact design.
- DIY Enthusiasts: Ideal for DIY audio enthusiasts who love hands-on projects. Build your own Bluetooth speaker or mini subwoofer setup and experience the thrill of real-world sound design with B2 Audio’s precision-engineered components.
- Educators: A great choice for educators and STEM programs teaching real-world sound engineering. Engage students with a practical Bluetooth amplifier and subwoofer system that combines 3D printing, electronics, and acoustics for immersive learning.
B2 Audio RIOT-2.5 Mini Woofer 3D-Printed Box, Amp & Enclosure DIY Project
This Listing Includes:
- (1) B2 Audio RIOT-2.5 Mini Woofer 2.5" 4 Ohm Loudspeakers 20W RMS Aluminum Basket
- (1) Single Ported 3D-Printed Subwoofer Enclosure for B2 Audio RIOT-2.5
- (1) Daakro ZK-1002T Amplifier: 100W+100W 2.0 Channel Bluetooth 5.0 + AUX Input, Treble/Bass Control, DC 12–24V
- (1) Custom 3D-Printed B2 Audio Amp Box for ZK-1002T Amplifier
Disclaimer: Does NOT come with screws or mounting hardware.
This kit brings together everything you need to build a small Bluetooth-powered speaker project using the B2 Audio RIOT 2.5.
The RIOT 2.5 is a 2.5" speaker with a subwoofer-inspired design, making it a popular choice for hobbyists building desktop audio systems, demo boxes, and creative DIY setups. It offers more output and presence than the smaller RC2 platform while still keeping the build compact.
The included 3D printed enclosure and amplifier case provide a clean foundation for your project, while the ZK-1002T Bluetooth amplifier powers the system.
Just add a compatible 12–24V DC power supply and complete the wiring.
Specifications:
Speaker
- Woofer Size: 2.5"
- Power Handling: 20W RMS / 40W Max
- Impedance: 4 Ohm
- Voice Coil: 0.8" 4-layer aluminum
- Basket: Aluminum, black powder-coated
- Sensitivity: 76.4 dB
- Resonant Frequency (Fs): 121.6 Hz
- Mounting Depth: 53 mm
- Weight: 0.73 lb woofer, approx. 1.13 lb with enclosure
Woofer Enclosure
- Type: Single Ported, 3D-Printed Composite
- Dimensions: 4.25" x 3.75" x 3.25"
- Optimized for: B2 Audio RIOT-2.5
- Design Benefits: Lightweight structure, efficient airflow, improved bass response, and modern appearance
Amplifier
- Power Amplifier Chip: TPA3116D2
- Input Voltage: DC 12V-24V
- Maximum Power Output: 100W+100W
- Channel Type: 2.0 Channel
- Input Methods: Bluetooth 5.0 & AUX
- Output Impedance: 4-8 ohms
- THD (Total Harmonic Distortion): 0.40%
- SNR (Signal-to-Noise Ratio): 75dB
- Compatible Speakers: Passive speakers, 20-200W, 4-8-Ohm
- Bluetooth Range: Up to 15m
Amplifier Enclosure:
- 4.08" x 3.2" x 1.30"
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Same Apple quality for less $
Style: 256GB | Magic Keyboard, Color: Citrus, Set: Without AppleCare+
I’ve had my Neo about a week now and I love it. I was hesitant because it uses an iPhone chip instead of an M chip like other MacBooks. But my 2020 MacBook Air M1 started having display screen issues (vertical and horizontal lines, flickering) so I needed to get something before it failed completely. I didn’t want to spend $1,100+ for a new Air, so I researched the Neo. It’s actually faster than my old Air and I’ve had no problems at all using it for everything I always use my laptops for, which is mostly writing books, email, web browsing, Zoom meetings, and video streaming. I haven’t had any performance problems with a dozen or more tabs open at the sand time. I got the 8Gb, which is plenty even for the thousands of documents and photos I have saved. I have entire book drafts of 200+ pages saved, a doctoral dissertation, and hundreds of research articles saved for my dissertation. It’s more than adequate for my needs. It’s very light weight. The citrus color is pretty. The keyboard is very responsive and feels even better than the Air. The battery doesn’t last as long as the Air before needing recharged but it’s still long lasting. No complaints.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
★★★★★ 5
Excellent
Style: 256GB | Magic Keyboard, Color: Citrus, Set: Without AppleCare+
This MacBook Neo is incredibly fast and smooth thanks to the A18 Pro chip. The display looks amazing, battery lasts all day, and the AI features actually make daily tasks easier. Lightweight, premium build, and perfect for everyday use. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
Such a good buy! Great price
Style: 256GB | Magic Keyboard, Color: Citrus, Set: Without AppleCare+
The power this little MacBook has and how fast it runs is everything. The performance is top tier for what I use it for. Battery life is also great. If you been wanting a Macbook but don’t want to spend a lot of money. You should get it! It holds a little weight to it but nothing too crazy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 5
cutes
Style: 256GB | Magic Keyboard, Color: Blush, Set: Without AppleCare+, Style: 256GB | Magic Keyboard, Color: Blush, Set: Without AppleCare+
came in pretty fast. within a couple hours, i ordered at 6am, received it by like 10:20am, its so smooth, the only downside i have is it only has 2 ports, c type, so i ordered an port extender, this is my first apple macbook laptop. so far i love it. it runs roblox really well. been watching a movie and playing with split screen. hasn’t overheated at all. battery life is amazing, been using it since 10:30am nonstop it was at 75 when i set it up, it current now at 32, arrived in great shape, no scratch or breakage. and it’s such a pretty pink blush color. def recommend.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Ridiculously satisfying!
Size: iPad A16 11th/10th, Size: iPad A16 11th/10th
YES! I am completely obsessed with the SPARIN Screen Protector for iPad! From the moment I applied it, my screen looked crystal clear and felt silky smooth like butter under my fingers. The fit is absolutely perfect for both my 11th and 10th generation iPads, hugging every edge without a single bubble or misalignment. I love how responsive it is... swipes, taps, and even intense drawing sessions feel flawless, like my iPad is brand new again. The protector is tough and scratch-resistant, so I can toss it in my bag without worrying about keys or pens ruining my screen. I also love that it doesn’t mess with the display brightness or clarity, so everything still looks vibrant and sharp. Applying it was super easy and stress-free, which honestly surprised me because I expected a million bubbles or frustration. Five stars all the way for a screen protector that makes my iPad feel safe, sleek, and ridiculously satisfying to use every single day!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
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