4 Ohm 1.5W miniature Bass Reflex speaker suitable for ESU Loksound v4 or v5 decoders, or similar. ESU Loksound v4 decoders can manage a 4 Ohm speaker, or for an even fuller sound then fit 2 x 4 Ohm speakers (wired in Series - NOT Parallel).
This Mini Bass Reflex Speaker is ideal for use with DCC (Direct Current Control) systems, particularly when working with Zimo or ESU locosound kits.