DML Speakers

Has anyone her used any of the amplifiers, either the 2.1 Amplifier for DIY Speaker Up2stream Amp 2.1 or the Bluetooth Amplifier Board with Wifi Up2stream Amp V4 , to build DML Flat Panel Speakers? If so can you share any issues, problems or insight, that would be helpful.

I am about to take the plunge and try to make a set, but I think I’ll also need a subwoofer to help the system with the low end. I am thinking of going with the 2.1 Amplifier because of this.

Thanks,

Jarrod