Railmaster Hobbies DSM8 Bass Reflex speaker & enclosure 8 Ohm GEVO MODELRRSUPPLY
Great sound and fits nicely in IM GEVOs
All Scales ESU 50321 Speaker 11 x 15 mm 8 Ohm w/ Sound Chamber - New
A nice option for small spaces with great sound
Basically like the Zimo sugar cubes - if not the same - these awesome speakers really put a great sound once you add the baffle (of which there are two sizes). I highly recommend these!