Description
A 28 mm round speaker, 12 mm deep, with a passive radiator and wired at 4 Ω for high volume. The round format suits H0 steam boilers, and the passive diaphragm delivers deep, full sound from the sealed enclosure.
Fully supported by LokSound 5 decoders, with louder output thanks to the 4 Ω impedance.
- Size: 28 mm round × 12.0 mm
- Impedance: 4 Ω (higher volume)
- Enclosure: passive radiator (deep bass)
- Best for: H0 steam boilers
Brand-new, genuine ESU (Electronic Solutions Ulm). Ships from our shop in Oakville, Ontario.

