How many amps dose this run on?

Kozy is wrong: it is an amplifier, so not hook up to another amp. It runs on 5-27V. I suppose it draws less than an amp, depending on voltage and speakers and listening volume.

Can it plays the music in u disk by usb port?

I have this board and it does play the audio from your computer over USB - you can't use Bluetooth at the same time of course, but it will output computer audio. You will have to choose it in Playback Devices if you are using Windows.

Where do I get the subwoofer enhancement mentioned in the description?

There is no mention of subwoofer in the description.

Will the 5W*2 amplifier really handle 2 ohms of resistance or is that a typo?

I've used it with 4 ohm and 8 ohm speakers. Both sound about the same. If you parallel two 4-ohm speakers (resulting in 2 ohm load) it could probably handle the current at low volume but I haven't tried it and wouldn't risk it. I mean, really: this is a *LOW COST* amp, not something to drive your neighbors crazy with. 2 ohm speakers? Where'd you even find them?

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Audio Amplifier Board, Icstation Ḅḷụẹ-ṭọọṭḥ-Compatible Stereo Audio Amplifier Module 2x5W BT 5.0 Mini Amplifier Board 3.7V 5V for DIY Speakers

Audio Amplifier Board, Icstation Ḅḷụẹ-ṭọọṭḥ-Compatible Stereo Audio Amplifier Module 2x5W BT 5.0 Mini Amplifier Board 3.7V 5V for DIY Speakers

Product ID: 57863526

Details

Item dimensions L x W x H
1.57 x 0.79 x
Manufacturer
Icstation
Maximum Supply Voltage
5 Volts
Minimum Supply Voltage
3.7 Volts
Voltage
5 Volts

📶Bluetooth 5.0, 15m range

🔊2x5W stereo output

🔋3.7V lithium battery powered

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Description

🎵 Power Your DIY Sound Revolution with Bluetooth 5.0 Magic!

COMPACT ROBUST DESIGN - Surface-mount board with solid connectors built to withstand your creative speaker projects.
ULTRA LOW POWER STANDBY MODE - Smart auto-shutdown after 10 minutes standby saves battery life without missing a beat.
VERSATILE USB POWER CHARGING - Charge your lithium battery or power the board directly via USB for ultimate DIY flexibility.
CRYSTAL CLEAR DUAL CHANNEL SOUND - Enjoy immersive 10W stereo output with anti-crack and subwoofer boost for rich, room-filling audio.
SEAMLESS BLUETOOTH 5 0 CONNECTIVITY - Effortlessly pair with any smartphone or adapter up to 15 meters away—cutting-edge wireless freedom.

The Icstation Bluetooth 5.0 Audio Amplifier Board delivers crisp 2x5W stereo sound with advanced anti-crack and subwoofer enhancements. Designed for 3.7V lithium battery power, it features ultra-low standby consumption and smart auto-shutdown. With a 15-meter Bluetooth range and USB charging capability, this compact, surface-mount module is perfect for millennial DIYers seeking wireless, high-quality audio upgrades for their custom speakers.

Specifications

ASIN	B0796TJ9FT
Best Sellers Rank	#125,176 in Electronics ( See Top 100 in Electronics ) #798 in Audio Component Amplifiers
Brand Name	IS
Customer Reviews	4.3 out of 5 stars 326 Reviews
Item Dimensions	1.57 x 0.79 x 0.39 inches
Item dimensions L x W x H	1.57 x 0.79 x 0.39 inches
Manufacturer	Icstation
Material Type	Electronic Components, Circuit Board
Maximum Supply Voltage	5 Volts
Minimum Supply Voltage	3.7 Volts
Model	1307901
Mounting Type	Surface Mount
Number of Channels	2
Output Power	10 Watts
Package Type Name	standard electronic component package
Part Number	1307901
Specification Met	FCC
Supply Current	2 Amps
Voltage	5 Volts

Reviews

H**C

27.11.2019

E**B

22.11.2019

R**S

20.03.2020

A**R

8.08.2020

S**S

14.02.2020

D**N

25.03.2020

C**N

16.05.2019

B**Z

1.08.2021

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

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