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ZK-TB21 Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Speakers
Hosyond

ZK-TB21 Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Speakers

$22.89 ★★★★☆4.4(316 reviews)

*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.

Bottom line: The ZK-TB21 Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Speakers is a solid pick with broad community endorsement in the sound cards category, priced around $22.89, rated 4.4★ across 316 verified Amazon reviews. A solid choice — worth comparing against one or two close alternatives first.

SpecPicks Verdict

SpecPicks classifies ZK-TB21 Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier… as a solid pick with broad community endorsement in the sound cards category, based on 316 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Hosyond's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for sound cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ Solid 4.4★ customer rating
  • ✓ Backed by Hosyond's warranty and support channels
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • TPA3116D2 HIFI chip solution: with AM interference suppression function, 2.1 channel stereo output 50W+50W+100W, to ensure continuous serial high-power operation, THD ≤0.1%. Using high-quality filter inductors, the sound is full and clear.
  • Bluetooth and AUX audio input: Bluetooth 5.0 version, higher transmission efficiency and longer distance. If your playback device does not have Bluetooth, you can also input audio signals through the 3.5MM jack(Note: When using AUX mode, please confirm that the Bluetooth connection of this module has been disconnected).
  • Safety protection: The power amplifier board has overheat protection, reverse connection protection, circuit breaker protection, overvoltage and undervoltage protection; wide voltage input DC: 12-24V.
  • Features copper DC connectors and insulated terminals. It can withstand high current, does not generate heat, and does not damage the wire. The free DC head lead is compatible with the input power interface of this product, even if you don't have a DC head adapter, you can easily wire it.
  • Independent high and low bass control knobs, easy to adjust the volume, allowing you to experience theater-like sound effects. With its excellent performance and comprehensive cost performance, TDA3116D2 is widely used in home theaters, square speakers, etc.

Full Specifications

BrandHosyond
ModelH017
Voltage24 Volts (DC)
Part NumberH017
ConnectivityBluetooth
Output Power200 Watts
Material TypeCopper
Mounting TypeSurface Mount
Supply Current5 Amps
Package Type NameProtective Shell
Specification MetCE, FCC
Number of Channels2
Maximum Output Power200W
Maximum Supply Voltage24 Volts (DC)

Ready to buy?

ZK-TB21 Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Speakers is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.

Related Sound Cards

ZK-TB21 Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Speakers
$22.89
4.4★ (316)
View on Amazon →