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[ZK-MT21] 2.1 Channel Bluetooth 5.0 Subwoofer Amplifier Board 50W+50W+100W, aptX Low Latency, AUX/Bluetooth Input for Home Theater/Car Audio/Speakers (4-8Ω)

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$17.99

$ 8 .99 $8.99

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About this item

  • 2.1 Channel Immersive Sound. "50W+50W Stereo + 100W Subwoofer Output: Experience cinema-level bass in your living room or car. Perfect for action movies, EDM music, and gaming explosions."
  • Bluetooth 5.0 + aptX Low Latency. "Wireless Audio with 40ms Ultra-Fast Sync: No more lag between gunshots and explosions in the film. Stream lossless music via aptX "
  • Plug & Play for DIY Enthusiasts. "Upgrade Any Audio System in 5 Minutes: Connect via AUX/Bluetooth to TVs, car stereos, or old speakers. Compatible with 4-8Ω drivers (20-100W)."
  • Pro-Grade Heat Dissipation & Safety. “Professional Chip+Aluminum Housing: Stable 12-24V input, overload/short-circuit protection. Trusted by 500+ car audio modders.”
  • Dual-Mode Flexibility. "Wired or Wireless Freedom: AUX input for vintage vinyl players, Bluetooth 5.0 for modern devices. Pair 2 phones simultaneously (e.g., DJ mixing)."


Transform Your Space into a Powerhouse Sound System
"Whether you’re reviving a classic car stereo or building a backyard movie night, the ZK-MT21 amplifies every beat with precision. No engineering degree required – just pure, raw power." Why Tech Nerds & Music Lovers Love It
Bass That Shakes Your Chest
100W dedicated subwoofer channel punches through walls (responsibly), delivering the "cinema rumble" for Marvel movies or hip-hop nights.
Zero Compromise on Clarity
aptX codec preserves details even at max volume – hear the guitarist’s fingertips slide, not just muffled noise.
Built for Real-World Chaos
Survives summer car trunks (tested at 122°F/50°C) and dad’s ‘accidental’ coffee spills.
Set Up Like a Pro (We Promise It’s Easy)
Car Audio Upgrade: Connect to factory stereo → Hide under seat → Pair phone via Bluetooth.
Home Theater Hack: AUX from TV → Power speakers + subwoofer → Boom, wireless surround sound.
Party Mode: Stream from 2 phones – your playlist never dies.
 Specs That Matter to You
Power: 50Wx2 (L/R) + 100W (Sub) @ 24V
Compatibility: 4-8Ω speakers, 20-100W drivers
Inputs: Bluetooth 5.0, 3.5mm AUX, RCA
Protections: Overheat/short-circuit/overload
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