ESU 50344 Bass Reflex Speaker 24mm x 55mm x 8.6mm 4 Ohm
This loudspeaker module is suitable for large tenders in O, HO or OO gauge models.Its built-in passive radiator, in conjunction with the built-in broadband speaker, results in good bass reproduction without neglecting the highs and mids. This module is a real alternative for those who like deep bass but don't need extreme volume.