The Ferrofish B4000+ Organ Expander is a quality Organ sound expander.
How good could an expander be with the new up to date technical possibilities? The most successful Organ expander in company history answers this very question. With a TFT Display, new processor, newest converter generation and a further improved sound! The draw bars for direct access to the register are naturally still available as well as the ultra robust housing.
The main features of the B4000+ include: