Genz-Benz rt-2100 オーナーマニュアル

(left to right)

 
CHANNEL SWITCH — Selects either Drive (Red LED) or, Clean (Green LED) channels. Switch is bypassed 
and inoperative when footswitch plug is inserted into either, footswitch jack on the rear panel.  
 
INPUTS — Input 1: 0 dB. - Most sensitive input.   Input 2: -8 dB. - Less sensitive input for Steel guitars and ex-
tra-high output pickups. NOTE: Inputs have true active summing, therefore two guitars of any impedance may be 
summed together by using both inputs. It is also possible to use a "Y" cord to give even more gain. (Single guitar 
Y-ed into the two inputs).  
 
DRIVE CONTROL — Controls gain of tube #1. Tube #1 is biased for a thinner, articulate Tube Driver-like tone 
reminiscent of British amps.  At control settings lower than 3, tube #1 becomes virtually clean allowing the Stack 
control to completely control the overdrive level through tube #2.  
 
STACK CONTROL — Controls gain of tube # 2. Tube #2 is biased in a more "Blue Tube" manner. Those knowl-
edgeable with the famous Tube Works model 922 and 924 rack-mount will hear a lot of familiar tones as this 
control is added.  As you add more "stack" the sound will become fatter and fatter. This is of great help when 
practicing at lower  volume levels to maintain a well-balanced tone. NOTE. This control is switchable via the 
back-panel footswitch jack labeled "2". The footswitch will switch between the "0" setting to whatever level you 
preset the Stack control to. This adds 3rd channel capability to your amp.  
 
Hi, MID, LO — Drive channel EQ. This is an entirely new concept for combo amplifiers. Each control is a sepa-
rate passive filter summed actively into the (also) active, Master volume. This configuration adds great flexibility 
and much expanded range over conventional passive designs and prevents any crosstalk into the clean channel 
when overdrive is switched off.  Inter-control loading is greatly reduced as well.  
NOTE:    Frequencies:   Hi       3.5 KHZ (upper shelving)  
                                       MID    800 HZ  (center) 
                                       LO     150 HZ   (lower shelving)  
ALL HAVE PASSIVE ROLL-OFF CHARACTERISTICS.  
 
MASTER — Active master volume control for the Drive channel. No leakage of signal is present with this master 
at 0. This insures good definition at the ultra-high gain levels this preamp is capable of with its Stack configura-
tion.  
 
VOLUME — Clean channel gain. This channel is also capable of classic overdrive with the use of its master 
control.  
 
MASTER — Master volume for Clean (Green) channel. 
 
HI, MID, LOW — Classic Tube Works passive EQ. This EQ is identical to the Channel 2 EQ section round in the 
Tube Works 922/924 Rack-Mounts. Warmth and tone are the key emphasis for this EQ.  
NOTE:    Frequencies:   Hi       3.5 KHZ (upper shelving)  
                                       MID    800 HZ  (center) 
                                       LO     150 HZ   (lower shelving)  
ALL HAVE PASSIVE ROLL-OFF CHARACTERISTICS.  
 
EFFECTS MIX — This control mixes the signal present at the "Effects In" Jack on the rear panel. Rotating the 
control towards "Wet" mixes more and more of the effect's sound while "Dry" mixes more of the pre-effect signal. 
NOTE: This control functions ONLY when there is a plug inserted into the "Effects Return" jack.  
 
REVERB — Adds desired reverb intensity. Reverb is switchable when using Footswitch jack #1.