---
product_id: 386577640
title: "DollaTek ZK-502M Audio Mini 2.0 Stereo 50W+50W Bluetooth Digital Amplifier Module 50W2 AMP Amplificador Home Theater AUX USB"
brand: "dollatek"
price: "₱3134"
currency: PHP
in_stock: true
reviews_count: 5
category: "Dolla Tek"
url: https://www.desertcart.ph/products/386577640-dollatek-zk-502m-audio-mini-2-0-stereo-50w-50w
store_origin: PH
region: Philippines
---

# Bluetooth 5.0, 15m range 50W+50W stereo power 5-24V wide voltage input DollaTek ZK-502M Audio Mini 2.0 Stereo 50W+50W Bluetooth Digital Amplifier Module 50W2 AMP Amplificador Home Theater AUX USB

**Brand:** dollatek
**Price:** ₱3134
**Availability:** ✅ In Stock

## Summary

> 🎧 Tiny Amp, Massive Sound – Power Your Space with DollaTek ZK-502M!

## Quick Answers

- **What is this?** DollaTek ZK-502M Audio Mini 2.0 Stereo 50W+50W Bluetooth Digital Amplifier Module 50W2 AMP Amplificador Home Theater AUX USB by dollatek
- **How much does it cost?** ₱3134 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/386577640-dollatek-zk-502m-audio-mini-2-0-stereo-50w-50w)

## Best For

- dollatek enthusiasts

## Why This Product

- Trusted dollatek brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Mini amp smaller than a card delivering a robust 50W+50W stereo output for immersive sound.
- • **Built-in Protection:** Overheat, overcurrent, and short circuit safeguards ensure reliable, long-lasting performance.
- • **Seamless Connectivity:** Triple input modes—USB plug & play, AUX 3.5mm, and Bluetooth 5.0—for effortless device pairing anytime.
- • **Plug & Play Simplicity:** Clearly printed connection icons eliminate guesswork, making setup intuitive and fast.
- • **Versatile Speaker Compatibility:** Supports 4-8Ω passive or active speakers, transforming your setup into a Bluetooth receiver or amplifier.

## Overview

The DollaTek ZK-502M is a compact Bluetooth digital amplifier module delivering 50W+50W stereo output. It supports wide voltage input (5-24V) and offers versatile connectivity via USB, AUX, and Bluetooth 5.0 with a 15m range. Designed for easy setup with printed connection icons, it supports both passive and active speakers and includes built-in protection mechanisms for safe, reliable use in home theater or desktop audio setups.

## Description

Feature:Audio input: Bluetooth+AUX+USB flash disk+Computer USB(plug and play)Power Supply: DC5-24V(high power recommended high voltage)Adapter speaker: 10-100W; 4-8ΩChannels: Left and right stereo (stereo)Bluetooth version: 5.0(>15 meters without occlusion)Protection mechanism: Overheat, Overcurrent, short circuit protectionProduct size: 60x60x29mmPackage includes:1 x bluetooth Digital Amplifier Module kit

Review: Very easy to put together, and feels more robust as a pair of printed circuit boards connected with brass standoffs than an equally-cheap plastic housing would. The negative reviews seem to suggest it can burn itself out, but adding active cooling is extremely easy - it keeps its USB port powered when it's in the other modes, and there's enough current coming from it that its 5V output is keeping a 120mm PC fan meant to run on 12V spinning quickly enough to move air, but slowly enough to be silent. If you don't want to run a bodge, one of those pound-shop gooseneck USB fans for laptops would probably be just as good, and 50mm fans with USB cables are cheap too as people use them to cool 3D printer hot ends. When I was putting it together, I made sure to fit the little heatsink so that the fins are perpendicular to the edge it's closest to - I don't know how much of an actual effect that'll have, but it means the air can move through the fins rather than into the side of one. It seems to be fine with some pretty big speakers - I had a pair of Alesis M1 Mk. II active monitors die, victims of the capacitor plague, and I converted them to passives: each are now 8-ohm with 5.5-inch 75W woofers and 25W tweeters, and this thing, powered by a 20V 3.95A laptop PSU rescued from the dump, is able to run the pair of them fine. More than loud enough for a medium-sized room with no missing low-end. The photos make it look like it'll be too small for this to be possible...and it's even smaller in person. Brow-furrowing. If I haven't updated the review, assume it's still alive!
Review: Un buen aparato, no lo puedo negar, se escucha bien, aunke da algún problema de vez en cuando con el bluetooth, xo si usas Jack o usa va de lujo

## Features

- ZK-502M AMP is a mini Bluetooth AMP smaller than a card, its peak output power can reach 50W+50W, wide voltage input: 5-24V, you can easily buy a matching DC power supply.
- This AMP protection board is printed with connection icons, allowing you to easily connect to each port without reading the manual.
- This AMP has three input methods, their input sequence is USB mode/AUX mode/Bluetooth mode.
- You can directly connect to the computer through the USB interface without a driver, you can also connect to the playback device through the AUX 3.5mm interface, and finally, you can also connect to the mobile phone through the Bluetooth mode.
- There is no doubt that both can be connected. When you connect passive speakers, this AMP is a Bluetooth power amplifier; when you connect active speakers, this AMP is equivalent to a Bluetooth receiver. It should be noted that two types of speakers cannot be connected at the same time.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095P1KS7V |
| Item model number | ZK 502M |
| Manufacturer | DollaTek |
| Package Dimensions | 11.1 x 6.7 x 5.2 cm; 90 g |

## Product Details

- **Manufacturer:** DollaTek
- **Maximum supply voltage:** 24 Volts (DC)
- **Minimum supply voltage:** 5 Volts
- **Mounting type:** Surface Mount
- **Voltage:** 24 Volts

## Images

![DollaTek ZK-502M Audio Mini 2.0 Stereo 50W+50W Bluetooth Digital Amplifier Module 50W2 AMP Amplificador Home Theater AUX USB - Image 1](https://m.media-amazon.com/images/I/517yhTOy48S.jpg)
![DollaTek ZK-502M Audio Mini 2.0 Stereo 50W+50W Bluetooth Digital Amplifier Module 50W2 AMP Amplificador Home Theater AUX USB - Image 2](https://m.media-amazon.com/images/I/518r2Ebb2WS.jpg)
![DollaTek ZK-502M Audio Mini 2.0 Stereo 50W+50W Bluetooth Digital Amplifier Module 50W2 AMP Amplificador Home Theater AUX USB - Image 3](https://m.media-amazon.com/images/I/51VZGuW3QoS.jpg)
![DollaTek ZK-502M Audio Mini 2.0 Stereo 50W+50W Bluetooth Digital Amplifier Module 50W2 AMP Amplificador Home Theater AUX USB - Image 4](https://m.media-amazon.com/images/I/61cO8RTHYGS.jpg)
![DollaTek ZK-502M Audio Mini 2.0 Stereo 50W+50W Bluetooth Digital Amplifier Module 50W2 AMP Amplificador Home Theater AUX USB - Image 5](https://m.media-amazon.com/images/I/61ySkBSo5GS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by P***T on 3 June 2024*

Very easy to put together, and feels more robust as a pair of printed circuit boards connected with brass standoffs than an equally-cheap plastic housing would. The negative reviews seem to suggest it can burn itself out, but adding active cooling is extremely easy - it keeps its USB port powered when it's in the other modes, and there's enough current coming from it that its 5V output is keeping a 120mm PC fan meant to run on 12V spinning quickly enough to move air, but slowly enough to be silent. If you don't want to run a bodge, one of those pound-shop gooseneck USB fans for laptops would probably be just as good, and 50mm fans with USB cables are cheap too as people use them to cool 3D printer hot ends. When I was putting it together, I made sure to fit the little heatsink so that the fins are perpendicular to the edge it's closest to - I don't know how much of an actual effect that'll have, but it means the air can move through the fins rather than into the side of one. It seems to be fine with some pretty big speakers - I had a pair of Alesis M1 Mk. II active monitors die, victims of the capacitor plague, and I converted them to passives: each are now 8-ohm with 5.5-inch 75W woofers and 25W tweeters, and this thing, powered by a 20V 3.95A laptop PSU rescued from the dump, is able to run the pair of them fine. More than loud enough for a medium-sized room with no missing low-end. The photos make it look like it'll be too small for this to be possible...and it's even smaller in person. Brow-furrowing. If I haven't updated the review, assume it's still alive!

### ⭐⭐⭐⭐⭐ Review
*by C***N on 5 April 2024*

Un buen aparato, no lo puedo negar, se escucha bien, aunke da algún problema de vez en cuando con el bluetooth, xo si usas Jack o usa va de lujo

### ⭐⭐⭐⭐ Review
*by J***R on 25 December 2023*

Fonctionne bien, remplace un ampli pour un PC.

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-02-05*