Pro Co DB-4 4-Channel Passive Direct Box. The DB-4A from Pro-Co Sound provides four independent "direct-box" channels, housed in a single space, rack-mount chassis. The unit is ideal for the electronic keyboardist and equally well suited to any application requiring the interfacing of unbalanced high-impedance equipment with balanced low-impedance mixer inputs. The design of the DB-4 allows easy integration with any audio system.
Three unbalanced, parallel-connected input/output jacks make "patching in" at virtually any stage of the signal path, a simple task. Signals may be taken straight from the instruments or from sub-mixer outputs. The unit is housed in a durable chassis constructed from 16-gauge steel and aluminum, utilizing a "uni-box" enclosure. Internally, the specially designed transformers combine superb audio quality with generous noise rejection. Four channel passive direct box for electric/bass guitars Floating transformer-balanced XLR output for maximum isolation Four independent channels for four keyboard, drum machine outputs, etc.Three In/Out jacks per channel for convenient loop-through Line mode handles signal levels to +34dBv Ground lift switch eliminates hum and buzz Rugged "uni-box" construction for super strength and shielding Passive design requires no batteries or phantom power.