The DB-4 provides four independent "direct-box" channels in a convenient single space (1 3/4" , 44.45mm) rack-mounting package. Ideal for the multi-keyboardist, it is equally well suited to any application requiring the interface of unbalanced high-impedance equipment and balanced low-impedance mixer inputs. The versatile design of the DB-4 allows easy integration with any high-quality audio system. Three parallel-connected IN/OUT jacks for unbalanced signals make "patching in" at virtually any