I'm planning a build over Christmas for a workshop Bluetooth speaker build around the Bru5 amplifier which has dsp. The brief is it's a fun project and not expecting hifi. It's gotta go load so can be heard over the machinery. The two channels I would like to run a FAST arrangement in mono if the software allows this. The full range will likely be the faital pro fe22 that often get mentioned but I'm not sure what subwoofer to go for. I would like it to be sealed due to saw dust. Something that doesn't mind being EQ'ed. Size of the cabinet and driver isn't a concern within reason but it's a budget fun project so not silly money. The fr driver is £20 the amp was £30 so if I could get a sub for £50ish so I've spent £100 that would be great. (Free wood for cabinet)