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WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V
WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V — photo 2
WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V — photo 3
WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V — photo 4
WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V — photo 5
Wuzhi Audio

WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V

4.3 · 3 reviews
Tk1,150
In Stock (96)

Delivery: 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

Short Description:

WUZHI Audio ZK-502C is a compact 2.0 channel Class-D Bluetooth stereo amplifier board featuring the Texas Instruments TPA3116D2 amplifier chip. Delivers up to 50W × 2 output with Bluetooth 5.0 and AUX input, making it ideal for DIY Hi-Fi speakers, bookshelf speakers, desktop audio systems, home audio, and amplifier projects.

Long Description:

WUZHI Audio ZK-502C হলো একটি compact yet powerful 2.0 Channel Bluetooth Digital Amplifier Board, যা Texas Instruments TPA3116D2 Class-D amplifier chip ব্যবহার করে crystal-clear stereo sound, high efficiency এবং low distortion audio performance প্রদান করে।

Bluetooth 5.0 এবং AUX input support থাকার কারণে আপনি smartphone, laptop, desktop, TV, tablet অথবা other audio devices সহজেই connect করতে পারবেন।

এর compact size এবং efficient design এটিকে DIY speaker project, bookshelf speaker, desktop amplifier, portable speaker এবং home audio system-এর জন্য অন্যতম জনপ্রিয় amplifier module বানিয়েছে।

High Performance Class-D Amplifier

Built with the Texas Instruments TPA3116D2 amplifier IC, the ZK-502C delivers:

✔ High efficiency Class-D design
✔ Low heat generation
✔ Low harmonic distortion
✔ Crystal-clear stereo sound
✔ Stable high-power output
✔ Excellent energy efficiency

Wireless & Wired Connectivity

The amplifier supports two convenient input modes:

  • Bluetooth 5.0 Wireless Audio
  • 3.5mm AUX Input

Bluetooth offers stable wireless connectivity with an operating range of up to approximately 15 meters in open areas.

Power Output

Maximum Output Power:

  • 50W × 2 Stereo

Recommended Speaker:

  • 4Ω – 8Ω Passive Speakers
  • 30W – 200W Speakers

Recommended Power Supply

Input Voltage:

DC 9V – 24V

For maximum output performance, a 24V DC power supply with sufficient current is recommended. The board supports a wide operating range up to 27V depending on the version.

Ideal Applications

Perfect for:

  • DIY Bluetooth Speakers
  • Bookshelf Speakers
  • Home Stereo Systems
  • Desktop Audio
  • TV Audio Upgrade
  • Workshop Audio
  • Portable Speaker Projects
  • DIY Amplifier Projects
  • Multimedia Systems

বাংলায় সংক্ষেপে:

WUZHI Audio ZK-502C একটি compact Bluetooth stereo amplifier board যা TPA3116D2 Class-D chip ব্যবহার করে 50W × 2 stereo output প্রদান করে। Bluetooth 5.0 এবং AUX input থাকায় এটি DIY speaker, bookshelf speaker, home audio এবং desktop sound system তৈরির জন্য একটি জনপ্রিয় amplifier module।

Performance Benefits:

  • High-efficiency Class-D amplifier
  • Powerful 50W × 2 stereo output
  • Texas Instruments TPA3116D2 chipset
  • Bluetooth 5.0 wireless connectivity
  • AUX wired audio input
  • Low distortion sound quality
  • Compact and lightweight design
  • Easy DIY installation
  • Built-in protection circuits
  • Low power consumption

Key Features:

  • Brand: WUZHI Audio
  • Model: ZK-502C
  • TPA3116D2 Amplifier Chip
  • 2.0 Channel Stereo Output
  • Bluetooth 5.0
  • AUX Input
  • 50W × 2 Maximum Output
  • Class-D Digital Amplifier
  • DC 9–24V Input
  • 4Ω–8Ω Speaker Support
  • Compact PCB Design
  • DIY Friendly

Specifications:

Brand: WUZHI Audio

Model: ZK-502C

Amplifier Chip: Texas Instruments TPA3116D2

Amplifier Type: Class-D Digital

Channels: 2.0 Stereo

Maximum Output Power: 50W × 2

Audio Inputs:

  • Bluetooth 5.0
  • 3.5mm AUX

Power Input: DC 9V–24V

Supported Voltage: DC 5V–27V

Speaker Impedance: 4Ω–8Ω

Recommended Speaker Power: 30W–200W

Bluetooth Range: Up to 15 meters (Open Area)

Protection Features:

  • Over Voltage Protection
  • Under Voltage Protection
  • Over Temperature Protection
  • Short Circuit Protection
  • DC Detection Protection

Applications:

  • DIY Speakers
  • Home Audio
  • Bookshelf Speakers
  • Desktop Audio
  • Multimedia Systems
  • Bluetooth Audio Projects
  • Portable Speaker Systems
1

WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V — price in Bangladesh & FAQ

What is the price of WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V in Bangladesh?

The latest price of WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V in Bangladesh is 1,150৳. You can buy the WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V 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 WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V available in stock?

Yes. WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V is in stock at Voltech Electronics and ships within 24 hours.

Is the WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V original, and does it have a warranty?

Voltech Electronics sells only 100% authentic Wuzhi Audio products. Ask us about the warranty for the WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V before you order. It is brand new and sealed.

How much is the delivery charge for WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V?

We deliver the WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V all over Bangladesh. Delivery inside Dhaka costs 65৳ (1–2 days) and outside Dhaka 130৳ (2–4 days).

How can I pay for WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V?

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 WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V?

Yes. If your WUZHI Audio ZK-502C Mini Bluetooth 5.0 Stereo Amplifier Board | TPA3116D2 Class D | 50W × 2 | AUX & Bluetooth | DC 9–24V 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

4.3

Based on 3 reviews

5 ★1
4 ★2
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2 ★0
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S

Shuvo R.

Oct 8, 2026

অসাধারণ একটা Amplifier sound quality 100 তে 100

A

Arafat A.

Aug 14, 2026

ছোট সাইজ, কিন্তু পারফরম্যান্স বেশ ভালো। বোর্ডটি ব্যবহার করে ভালোই সন্তুষ্ট। Bluetooth কানেকশন দ্রুত হয় এবং AUX দিয়েও সহজে ব্যবহার করা যায়। সাউন্ড পরিষ্কার ও ভলিউম যথেষ্ট ভালো, বিশেষ করে DIY স্পিকার সেটআপের জন্য বেশ উপযোগী।

A

Arafat A.

Aug 14, 2026

ছোট সাইজ, কিন্তু পারফরম্যান্স বেশ ভালো। বোর্ডটি ব্যবহার করে ভালোই সন্তুষ্ট। Bluetooth কানেকশন দ্রুত হয় এবং AUX দিয়েও সহজে ব্যবহার করা যায়। সাউন্ড পরিষ্কার ও ভলিউম যথেষ্ট ভালো, বিশেষ করে DIY স্পিকার সেটআপের জন্য বেশ উপযোগী।

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