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Description
B2 Audio RC2 2" RC Car Subwoofer w/ 2ch Bluetooth Chip Amp & Single Vented BoxComplete Audio Upgrade Kit: Includes ZK 1002T Bluetooth amplifier, B2 Audio Rampage RC2 subwoofer, custom 3D printed amp box, and subwoofer enclosure. High Powered Amplifier: 200W output, Bluetooth 5. 0 & AUX inputs, treble & bass control, and protection features for optimal sound performance. Compact & Durable Subwoofer: 2 inch 4 ohm subwoofer with cast aluminum frame, pressed paper cone, and foam surround for dynamic bass in RC cars. Custom 3D
- Complete Audio Upgrade Kit: Includes ZK-1002T Bluetooth amplifier, B2 Audio Rampage RC2 subwoofer, custom 3D-printed amp box, and subwoofer enclosure.
- High-Powered Amplifier: 200W output, Bluetooth 5.0 & AUX inputs, treble & bass control, and protection features for optimal sound performance.
- Compact & Durable Subwoofer: 2-inch 4-ohm subwoofer with cast aluminum frame, pressed paper cone, and foam surround for dynamic bass in RC cars.
- Custom 3D-Printed Enclosures: Precision-fit amp box and single-ported subwoofer enclosure designed for maximum airflow, heat resistance, and easy installation.
B2 Audio RC2 2" RC Car Subwoofer w/ 2ch Bluetooth Chip Amp & Single Vented Box
This Listing Includes:
- (1) ZK-1002T Bluetooth 200W 2-Channel Amplifier Board
- (1) B2 Audio Rampage RC2 2-Inch 4-Ohm Subwoofer for RC Cars
- (1) Custom 3D-Printed B2 Audio Amp Box for ZK-1002T Amplifier
- (1) Single Ported 3D-Printed Subwoofer Box Enclosure for B2 Audio Rampage RC2
Disclaimer: Does NOT come with screws or mounting hardware. 12-24V DC power supply NOT included.
This kit includes everything you need to build a small-scale Bluetooth subwoofer system in a compact format.
Originally designed for RC car scale sound systems, the B2 Audio Rampage RC2 has become popular for creative DIY builds including desktop Bluetooth speakers, mini shop systems, and scaled-down car audio replicas.
If you've ever wanted to build a miniature subwoofer setup just for fun, this package brings all the core components together in one bundle.
Just add a compatible 12-24V DC power supply and complete the wiring.
Features:
-
ZK-1002T Bluetooth Amplifier: 200W output (100W per channel) for immersive 2.0 stereo sound.
Bluetooth 5.0 and AUX inputs for versatile connectivity.
Treble and bass controls for customized sound tuning.
Wide voltage compatibility (DC 12-24V) and comprehensive protection features. -
B2 Audio Rampage RC2 Subwoofer: Compact 2-inch 4-ohm subwoofer designed for RC cars.
Cast aluminum frame and mounting flange for durability.
Pressed paper cone and foam surround for clear, dynamic sound.
RMS power of 10W and a realistic basket design. -
Custom 3D-Printed B2 Audio Amp Box: Tailored for the ZK-1002T amplifier, ensuring a secure and snug fit.
Compact design, durable 3D-printed construction, and B2 Audio branding.
Heat-resistant and strong for long-term amplifier protection. -
Single Ported 3D-Printed Subwoofer Enclosure: Custom-designed for the B2 Audio Rampage RC2 subwoofer.
Single-ported layout for enhanced bass and minimal distortion.
Vented design for improved cooling and performance.
Lightweight, durable, and perfect for small spaces.
Specifications:
ZK-1001B Bluetooth 100W Mono Channel Amplifier Board
- Output Power:
- 12v @ 4 ohm: 30W x 2
- 12v @ 8 ohm: 10W x 2
- 15v @ 4 ohm: 50W x 2
- 15v @ 8 ohm: 20W x 2
- 19v @ 4 ohm: 70w x 2
- 19v @ 8 ohm: 30w x 2
- 24v @ 4 ohm: 100w x 2
- 24v @ 8 ohm: 50w x 2
- 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 ohm
- THD (Total Harmonic Distortion): 0.40%
- SNR (Signal-to-Noise Ratio): 75dB
- Compatible Speakers: Passive speakers, 20-200W, 4-8©
- Bluetooth Range: Up to 15m
2-Inch 4-Ohm B2 Audio Rampage RC2 Subwoofer
- RMS Power: 30W
- Impedance: 4 Ohms
- Voice Coil Size: 0.8"
- Cutout Diameter: 1.95"
- Mounting Depth: 2.32"
- Overall Diameter: 2.24"
- FS: 94.5 Hz
- QMS: 4.79
- QES: 1.45
- QTS: 1.11
- VAS: 0.2
- CMS: 0.61 mm/N
- MMS: 4.46 g
- Xmax: 4 mm
- SD: 15.2 sq.cm
- RE: 3.6 ohm
- LE: 0.67 mH
- SPL: 72.9 dB (1W)
- BL: 2.6
Custom 3D-Printed B2 Audio Amp Box for ZK-1001B Amplifier
- Material: High-strength 3D-printed composite.
- Length: 3.5"
- Width: 2.25"
- Height: 1.5"
- Weight: 1.1 oz
Single Ported 3D-Printed Subwoofer Box Enclosure for B2 Audio Rampage RC2
- Material: High-strength 3D-printed composite.
- Length: 3.25"
- Width: 3"
- Height: 2.5"
- Cutout Diameter: 2.05"
- Mounting Depth: 2.48"
- Weight: 0.20 lb
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
4.7 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 4
These are very thick pillows.
Item Package Quantity: 2, Size: Queen
Exactly as advertised. They are very firm and very thick. They're too thick for me to be able to use as bed pillows. However, they seem to work pretty well as cushions in my papasan chair on top of its normal cushion also work very well as decorative pillows.
I'm still giving them four stars because they're exactly as advertised and they seem well made. My only complaint is that they're just too thick. And that's definitely not the fault of the pillows or the pillow maker.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
★★★★★ 5
how good the product is
Item Package Quantity: 4, Size: Standard
These pillows are soft, fluffy, and surprisingly supportive for the price. They’re comfortable no matter how you sleep — whether on your side, back, or stomach — and they maintain their shape well overnight without going flat. The fabric cover feels smooth and breathable, keeping things cool through the night.
After a few days of fluffing and use, they settle nicely into a perfect medium firmness. They also wash and dry easily without clumping.
Overall, a great‑value pillow set that offers comfort, versatility, and quality — ideal if you need an affordable yet cozy bedding refresh.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
★★★★★ 5
Great Quality for a Great Proce!
Item Package Quantity: 2, Size: King
These pillows are very comfortable and maintain their shape. Quality is as described at a comfortable price for the quality! The pillows are comfortable; not overly firm nor flat. The density is medium and supportive; very comfortable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
Firm and comfortable
Item Package Quantity: 2, Size: Standard
These pillows are well made. Firm, yet comfortable. I am pretty rough with my pillows. I toss and turn frequently. After one year, they are still holding up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 4
Quite good. I am actually surprised. Too small for queensize
Item Package Quantity: 2, Size: Queen
These pillows are actually good. After reading a ton of reviews I pulled the trigger on these. I was 100% sure I was going to receive bad quality pillows (too flat or too thick). They do take 24-48 hours to firmen up. Let's see if they flatten out in a few weeks or if they hold up. My wife said the pillow was too thick and it raised her head too much. I don't agree, I sleep perfect on these, no neck pain in the morning.
Update 04/24
These are actually quite small to be considered queen pillows. They have become firm over the last few days.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
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