User manual

CONTROLS:
DIRECT BOX
Pro Co Sound
225 Parsons Street | Kalamazoo, MI 49007
800-253-7360
» www.procosound.com
INPUT:
1/4” (6.3mm) phone jack accepts unbalanced signals from
instrument or other source. Input impedance-greater than
180 kohm. Handles signals of up to +20 dBv at 20 Hz.
NOT RECOMMENDED FOR SPEAKER LEVEL USE.
OUTPUT:
1/4” (6.3mm) phone jack provides “loop-through” (parallel)
connection from input jack. Used when inserting CB-1
between instrument and amplier.
LO-Z OUTPUT:
Male 3-pin XLR-type connector provides balanced oating
low-impedance output (pin 2 hot). Connect to mixing board
microphone channel input. Recommended load impedance:
1.0 kohm.
GND/LIFT:
GND position connects INPUT and LO-Z OUTPUT grounds
together. LIFT position “oats” LO-Z OUTPUT. Used to reduce
hum and buzz by eliminating ground loops and providing
proper grounding for various conditions.
CB1
APPLICATION INFORMATION
SIGNAL SOURCE
MIC INPUT OF MIXING CONSOLE
1/4" (6.3mm)
PHONE PLUG
XLR FEMALE
STAGE OR STUDIO AMPLIFICATION
(IF USED)
PREAMP
DRUM MACHINE
MIXER
AMPLIFIER
KEYBOARD
ELECTRIC GUITAR or BASS
MIXER
INSTRUMENT AMPLIFIER
POWER AMP
PREAMP
INPUT OUTPUT
GND LIFT
LO-Z
OUTPUT
DIRECT BOX
CB-1
CB-1
1/4" (6.3mm)
PHONE PLUG
SIGNAL PATH
MICROPHONE CABLE (Balanced)
INSTRUMENT CABLE (Unbalanced)