Make sure you check this out on Amazon (affiliate link):

I built a 2.1 system using this board as an internal amp and got good performance using the stock power supply. One thing that I was really impressed with was the ability to use Airplay. It ran last night for three hours straight at one-third volume and the heat sink fins were warm but not hot.

The output power is directly tied to the current at 24V as you stated. You just need to pick up a 24V 6.66A (160W) adapter. I am running two 8 ohm stereo drivers and a single 12” 2 ohm sub. I watched the video but may have missed the part about their control software. Using a sine sweep, you can plot the response graph then create a complex parametric filter which can be embedded directly into the board’s flash storage. This is a huge deal especially for DIY DML setups which have dozens of harsh vibrational modes that need to be eq’d out to flatten the system response.

I have mission 771 bookshelf speakers. They can take from 25Wpc at 8Ohms. I tried topping mx3 which has stated 38wpc and performance was just audible, mushy and indistinct when the amp was driven to 60% volume. Sensitivity: 87dB.

Nice Video!

Are you able to use this without WiFi? Using Bluetooth only? For example if you put it into a portable speaker project to take outdoors?

Good video

Great video!!! I was about to build a bluetooth speaker based on the specs. Sorry for the confusion. But I planned to power this with a buck boost converter at 24v 4amps like the power supply using 7s2p 6ah battery pack. You mentioned, you wouldn't go higher than 15v. What should I pick for voltages. Thanks again for posting 👍👍👍👍👍

seems quite interesting. So, iIf using a 19v source it would realistically give me an output of 2x35w and somewhere near 75w one the sub out, all out driven in 4Ohms, at least in theory. Am I correct ?

Nice Review, Really enjoyed watching it.

Is it possible to use a stronger power supply

Let's say I am on my windows device and have a youtube video open -- and I want to cast the audio to one of these devices... The realistic situation for most people is that they have no music downloaded on their devices -- how would I achieve this?

Would this board support Wifi input via Spotify? Or is the app required for all direct play?

How can I use my Android phone inbuilt microphone whilst using upstream and my audio speakers to deliver a lecture?

How about this one for 2x 50W 6ohm speaker?

Why no Pandora?

I wish some of you audio youtubers would just use real world music examples instead of using fancy analyzers and sine wave graphs, we dont care because it just looks like a Star Trek console when you show us that stuff.

They use some strange practices in this company in my view... They should at least provide the back plate of this amplifier because with all these connections, it is very difficult to include it in a box. And if you buy it in this version, this is the purpose I guess. So in reality, it is useless to buy it like this.

I don't get it. With this kind of money you buy a 2.1 system with more power. Am i missing something?