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ZK-TB21 2.1 Channel Bluetooth 5.0 Amplifier Board – TPA3116D2 Chip 50Wx2+100W MAX, DC 12-24V, AUX Input, HiFi amp for Home Theater Passive Speakers Subwoofer, Treble & Bass Control - size: ZK-TB21

ZK-TB21 2.1 Channel Bluetooth 5.0 Amplifier Board – TPA3116D2 Chip 50Wx2+100W MAX, DC 12-24V, AUX Input, HiFi amp for Home Theater Passive Speakers Subwoofer, Treble & Bass Control - size: ZK-TB21

$33.18 USD
$33.18 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.

About this item

  • 【Crystal Clear HiFi Sound with Full Adjustability】 Built with the Texas Instruments TPA3116D2 chip, this 2.1 channel amplifier delivers crisp highs, clear mids, and deep lows. Independent treble, bass, main volume, and subwoofer frequency controls let you dial in the perfect sound for any speaker setup—whether it's bookshelf speakers, outdoor satellites, or a car audio system.
  • 【Powerful Output for Passive Speakers & Subwoofer】 Rated at 50Wx2 for left/right channels and 100W for subwoofer (MAX), this little amp pushes way above its size. It easily drives 6.5" components, 8" subs, and 4-8Ω passive speakers. Users have replaced old Bose systems and home theater receivers—getting loud, distortion-free sound even at high volume.
  • 【Plug-and-Play Setup with Bluetooth 5.0 & AUX Input】 Get connected in minutes. Bluetooth 5.0 pairs instantly with your phone, tablet, or laptop and auto-reconnects. No drops, no hassle. For wired sources, just plug into the 3.5mm AUX input. Assembly takes 5-10 minutes with the included screws. No instructions needed—it's that simple.
  • 【Wide 12-24V DC Power Compatibility】 Works with a variety of power sources—12V to 24V DC. Use a wall adapter (15V 6.33A or 19-24V 5A+ recommended) or even a 20V drill battery for portable setups. Higher voltage = more clean power. Just make sure your power supply has low ripple noise to keep the background hiss-free.
  • 【 Compact, Heat-Sinked Design for DIY & Car Projects】 Measuring only 4" x 4" with a large aluminum heatsink, this amp fits anywhere—under a desk, inside a classic car glovebox, or into a gaming chair sleeper build. Dual power input jacks (DC barrel + 2-pin terminal) give you flexible wiring options. No radio? No problem. Stream from your phone and enjoy great sound in old cars, workshops, or garages.

Overview

  • Item dimensions L x W x H: 4.65 x 3.94 x 0.9 inches
  • Manufacturer: HOCHANAN
  • Maximum Supply Voltage: 24 volts_of_direct_current
  • Minimum Supply Voltage: 12 volts_of_direct_current
  • Mounting Type: Freestanding

Low stock: 10 left

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Reviews

  • ⭐⭐⭐⭐⭐

    Emily Carter — Seattle, Washington

    DriveTech Co. made it easy to find practical accessories for my car. Everything I ordered was straightforward to install, worked as expected, and helped keep my daily driving setup much more organized.

  • ⭐⭐⭐⭐⭐

    Daniel Brooks — Austin, Texas

    I was impressed by the useful selection of vehicle electronics and accessories. The product information was easy to understand, my order arrived in good condition, and the accessories fit naturally into my everyday routine.

  • ⭐⭐⭐⭐⭐

    Lauren Mitchell — Denver, Colorado

    The accessories I purchased feel practical without being unnecessarily complicated. They helped me organize my cables, keep my phone securely positioned, and make charging devices in the car much more convenient.

  • ⭐⭐⭐⭐⭐

    Jason Reed — Portland, Oregon

    I had a smooth shopping experience with DriveTech Co. The products were easy to set up and have been useful during both daily commutes and longer trips. I would feel comfortable shopping here again.

FAQ

How do I know whether a product is compatible with my vehicle?

Please review the product description, dimensions, connector type, power requirements, and listed vehicle compatibility before ordering. Compatibility can vary by vehicle make, model, year, trim, and factory-installed system. If you are unsure, contact us with your vehicle details before purchasing.

Are installation instructions included with every product?

Installation materials vary by product and manufacturer. Any included instructions, mounting hardware, cables, or adapters should be listed on the product page. Some electronic accessories may require professional installation.

Can I install the products myself?

Many accessories are designed for straightforward installation, but the required skill level differs by product. Items involving hardwiring, fuse boxes, electrical systems, or interior panel removal should be installed by a qualified automotive professional.

What should I check before connecting an electronic accessory?

Confirm that the product’s voltage, connector type, power requirements, and intended use match your vehicle. Always turn off the vehicle when appropriate and follow the supplied instructions. Incorrect installation or incompatible power connections may damage the product or vehicle.

How can I track my order?

When tracking becomes available, we will send the information to the email address provided at checkout. Please allow time for the carrier’s tracking system to update after receiving your shipping confirmation.

Can I change or cancel my order after placing it?

Contact us as soon as possible if you need to change or cancel an order. We cannot guarantee changes or cancellations after processing or shipment has begun.

What is your return and refund policy?

Return eligibility, time limits, required product condition, exclusions, and refund procedures are explained on our Return & Refund Policy page. Please review that policy before starting a return and contact us for return instructions.

What should I do if my order arrives damaged, defective, or incorrect?

Contact us promptly with your order number, a description of the issue, and clear photographs of the product, packaging, and shipping label. Please keep all original packaging until we complete our review and provide further instructions.

Do your products include a warranty?

Warranty coverage varies by product and manufacturer. When a warranty applies, the relevant information may appear on the product page or in the materials included with the item. Warranty coverage should not be assumed unless it is expressly stated.

How can I contact DriveTech Co.?

You can email us at noirewmaqer@gmail.com or call +1 (936) 260-5549. Please include your order number when contacting us about an existing purchase so we can assist you more efficiently.

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