USB powered headphone amp with volume mix

[jason41987]

im trying to build a USB powered headphone amp that has the ability of mixing two individual audio signals..

i was wondering if any of these two boards would work for audio amplification

https://www.amazon.com/PAM8403-Digi...id=1362965440&sr=8-7&keywords=amplifier+board

https://www.amazon.com/sunkee-Digit...d=1362965518&sr=8-45&keywords=amplifier+board

the idea is to place one of these into a project box with a USB cable for power... or a 5v power adapter, amplify an incoming audio signal (via 3.5mm jack) and send the amplified audio to a 3.5mm female jack

i would like to add volume control for the main source, and volume control for a second source of audio that will be mixed in after amplification of the main source as well as a gain control for a microphone

the goal of this is to create a USB powered audio amplifier and chat mixer box in one, so a PC headset can be plugged into two 3.5mm jacks on one side, the headset audio/microphone can be plugged into the box as well so chat and game volume can be mixed independantly,

and out of this box will be a USB cable for powder, a 3.5mm cable for the source of the game volume, and a 3.5mm cable which will send the microphone signal to another source

essentially what im trying to do is replicate the chat mixer/amplifier that is equipped on xbox 360 gaming headsets such as the turtle beach wires headsets with the ability to use any PC headset

any ideas?

 

[audioguru]

A 5V supply is not enough voltage for a speaker or headphones amplifier.

The output from the PAM8403 stereo amplifier is only 1.2W into 8 ohms at clipping which might not be loud enough when you use 32 ohms or higher headphones. Its noise and distortion will probably be heard.

There is no microphone preamp circuit and no mixer circuit.