Genz-Benz uc-4 ユーザーガイド

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UC4 
UNIVERSAL COMBO
 
OWNER’S MANUAL 
 
The UC4 Universal Combo is just that: universal. Possible uses include keyboard amplifier, 
acoustic guitar amplifier, powered monitor, self-contained P.A. system and many other uses. The 
unique wedge shape and stand-mounting adapter allow the UC4 to be positioned in many 
different ways to suit any performance or public address situation. 
 
FRONT PANEL FEATURES
 
(Left to Right) 
 
1. 
INPUT 1 – 4: Controls the volume of sources plugged into channels 1 through 4.  Start 
with the Master Volume set as described in #8, and slowly bring each channel up to the 
desired volume. 
 
2. 
EFFECTS 1 – 4: Controls the amount of each channel being sent to the internal 
Accutronics reverb, as well the Effects Send jack on the rear panel. 
 
3. 
LO EQ CONTROL: Controls the frequencies below 125Hz. There is 15 dB of available 
boost and cut, shelving type. 
 
4. 
LO MID CONTROL: Controls the lo-mid frequencies centered around 250 Hz.  There is 
15 dB of available boost or cut, peak/dip type. 
 
5. 
HI MID CONTROL: Controls the hi-mid frequencies centered around 1 kHz.  There is 15 
dB of available boost and cut, peak/dip type. 
 
6. 
HI EQ CONTROL: Controls the frequencies above 4 kHz.  There is 15 dB of available 
boost and cut, shelving type. 
 
7. 
REVERB MASTER: Master volume for the internal spring reverb return.  This control 
does not affect the external Effects Loop. 
 
8. 
MASTER VOLUME: Controls overall output volume of the UC4.  Set this control to 
approximately 12 o’clock to 3 o’clock for most live performance situations. 
 
9. 
HEADPHONE JACK: Used to connect external headphones.  This jack is compatible 
with headphones ranging from 8 to 600 ohm impedance. 
 
10.  
PHANTOM POWER SWITCH: 15 VDC Phantom power is applied to the XLR input jacks 
when this switch is pushed in.  Use a small screwdriver or similar object to operate the 
switch.  DO NOT OPERATE THIS SWITCH WHILE THE AMPLIFIER IS TURNED ON! A 
VERY LOUD THUMP COULD OCCUR WHICH COULD DAMAGE THE SPEAKERS, 
YOUR HEARING, OR BOTH! 
 
11.  
PHANTOM POWER LED: This yellow LED is illuminated when the Phantom Power is 
on. 
 
12.  
POWER ON LED: This green LED is illuminated when power is applied to the UC4. 
 
13.  
POWER SWITCH: Applies mains power to the UC4 when in the UP “1” position.