The ProCo CB-1
is a passive direct box for connection of unbalanced musical
instruments and line-level sources to low-Z balanced microphone input
for PA or recording. Not recommended for speaker-level use. 1/4"
(6.35mm) input (with parallel 1/4" output). Switch for ground lift.
Male XLR-type balanced mic-level output. Uses Pro Co CBT-1 transformer
(20k/150 ohm).
High Input Impedance Minimizes Loading for Maximum Sound
Floating Transformer-Balanced XLR Output for Maximum
Isolation
GND/LIFT Switch Eliminates Hum and Buzz
Handles Line-Level Inputs to +20dbv at 20Hz
Rugged "Uni-BoxTM" Construction for Super Strength and
Shielding
Recessed Switches and Connectors Resist Damage
Passive Design Requires No Batteries or Phantom Power