Ideas for project in t-amp case

[Serow]

I have an aluminum enclosure from a Topping TP20 that stopped working. Does anybody have any ideas for a project I could use it for? I was thinking maybe something with an extra Raspberry Pi I have and a dac but space might be an issue. My current setup is a Behringer UCA202, Harman/Kardon PM660, and Micca MB42x speakers, if that helps. U-turn Orbit on the way.
Thanks!

 

[dumptruck]

A Raspberry Pi can potentially become a very sophisticated DSP crossover (you did post this in DIY), but as far as simple projects, this is a very useful one:
http://sound.westhost.com/bafflestep.htm#equalisation