R
Raj ..
Jul 5, 2026
Onak valo. Kamon Chayasilam tamon payaci
Voltech
ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics
Tk1,780
Out of StockDelivery: Inside Dhaka Tk65 (1–2 days) · Outside Dhaka Tk130 (2–4 days)
Cash on Delivery all over Bangladesh · bKash, Nagad & cards accepted
7-day return for damaged, defective or wrong items — request it from the Track Order page.
Fast Shipping
100% Genuine
7 Days Return
ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics
Product Description
The ZK-TB21 TPA3116D2 Bluetooth 5.0 Amplifier Board is a compact and powerful 2.1 channel Class D digital amplifier, delivering 50W + 50W stereo output along with a dedicated 100W subwoofer channel. This makes it a perfect solution for home theater systems, desktop audio setups, car audio upgrades, and DIY sound projects.
Powered by the TPA3116D2 chipset, the ZK-TB21 offers high efficiency, strong bass performance, and ultra-low distortion, even at high volumes. With Bluetooth 5.0 wireless connectivity, you can stream music seamlessly from smartphones, laptops, or tablets. It also supports AUX input, giving you multiple ways to connect your devices.
Available now at Voltech Electronics, this amplifier board is a great choice for Bangladeshi audiophiles, hobbyists, and sound system builders looking for a budget-friendly, high-quality 2.1 amplifier solution.
Key Features
- Power Output: 2 × 50W (stereo) + 100W (subwoofer)
- Chipset: TPA3116D2 Class D amplifier
- Channel Type: 2.1 (stereo + subwoofer)
- Connectivity: Bluetooth 5.0 + AUX input
- Audio Quality: Clear highs, detailed mids, and powerful bass
- Protection Features: Short-circuit, overheating, and over-voltage protection
- Applications: DIY speakers, home theater, desktop audio, car sound systems
- Design: Compact, lightweight, and energy-efficient
- Official Availability: Sold in Bangladesh by Voltech Electronics
Out of stock
ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics — price in Bangladesh & FAQ
What is the price of ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics in Bangladesh?
The latest price of ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics in Bangladesh is 1,780৳. You can buy the ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics at the best price from our website Voltech Electronics or visit our store at Dhanmondi , Dhaka, Bangladesh. Order online and pay Cash on Delivery anywhere in Bangladesh.
Is ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics available in stock?
ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics is out of stock right now. Call 01540371013 or chat with us and we'll tell you when it's back.
Is the ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics original, and does it have a warranty?
Voltech Electronics sells only 100% authentic Voltech products. Ask us about the warranty for the ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics before you order. It is brand new and sealed.
How much is the delivery charge for ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics?
We deliver the ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics all over Bangladesh. Delivery inside Dhaka costs 65৳ (1–2 days) and outside Dhaka 130৳ (2–4 days).
How can I pay for ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics?
You can pay Cash on Delivery — check the product first, then pay. You can also pay online with bKash, Nagad, Rocket, Visa or Mastercard.
Can I return or replace the ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics?
Yes. If your ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50W × 2 + 100W 2.1 Channel – Voltech Electronics arrives damaged, defective or wrong, request a return within 7 days of delivery from the Track Order page and we'll replace or refund it.
Customer Reviews
5.0
Based on 8 reviews
5 ★8
4 ★0
3 ★0
2 ★0
1 ★0
Bought it from us? Get Tk100 off your next order for a genuine review.
S
Sumon M.
Jul 3, 2026
এক কথায় পয়সা উসুল জিনিস এইটা। অরিজিনাল প্রোডাক্ট। কোন নয়েজ নেই, এত সুন্দর সাউন্ড! বাসার জন্য 2:1 সেট আপ করতে চাইলে এটা বেস্ট চয়েজ। রিভিউ এ ছবি ও ভিডিও যোগ করার অপশন থাকলে ভাল হয়। ধন্যবাদ Voltech কে।
র
রুহুল -.
Jun 4, 2026
⭐⭐⭐⭐⭐ ৫/৫ VOLTECH থেকে ZK-TB21 এমপ্লিফায়ার কিনে আমি খুবই সন্তুষ্ট। সাউন্ড কোয়ালিটি সত্যিই অসাধারণ, ছোট সাইজের হলেও পারফরম্যান্স অনেক ভালো। সবচেয়ে ভালো লেগেছে তাদের আন্তরিক ব্যবহার এবং সঠিক পরামর্শ। আমি কেনার আগে তাদের সাথে যোগাযোগ করেছিলাম। তারা TB21 নেওয়ার পরামর্শ দিয়েছিলেন, এবং ব্যবহার করার পর বুঝলাম তাদের কথার সাথে বাস্তবের ১০০% মিল আছে। কোনো ধরনের অতিরঞ্জন ছিল না। পণ্যের মান, সাউন
A
Abdur R.
May 30, 2026
Al Hamdulillah Very nice product ✨
M
Md S.
May 18, 2026
Good product
ব
বেনজীর আ.
Mar 26, 2026
Using almost one year having immersive sound. Good.
M
Mahamodul H.
Mar 4, 2026
আলহামদুলিল্লাহ খুব ভালো পেয়েছি। এবং এতো তারাতারি ডেলিভারি বিশ্বাস হইতেছে না আমার 1 রাতের মধ্যেই প্রডাক্ট হাতে পেয়েছি।খুব সন্তুষ্ট আমি।
M
Md S.
Mar 1, 2026
অনেক ভালো আমি একটা নিয়েছি অসাধারণ সাউন্ড কোয়ালিটি আপনারা চাইলে নিতে পারেন
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