Jeff Rowland Design Group 201 Speaker User Manual


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© Jeff Rowland design gRoup 2007. all Rights ReseRved.
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OWNER’S MANUAL MODEL 201 MONO AMPLIFIER
OPTIONAL AdjusTmeNTs
RISK OF ELECTRICAL SHOCK!
WARNING: 






ADjUSTING AMPLIFIER OVERALL GAIN
STEP 1:
Unplug the Model 201 Mono Amplifier power cable
from the
wall AC outlet.
STEP 2:
Place the unit upside-down on a soft, clean surface.
Using a #2 Phillips screwdriver,
remove the ten screws that
secure the
bottom cover of the unit.
STEP 3: Locate jumper J103 on the rear panel board of the unit.
Using needle-nose pliers, move the jumper from between pins
2 and 3 to pins 1 and 2. (See FIGURES 1 and 2). Overall amplifier
gain increases to 32 dB.
STEP 4:
Reinstall the bottom cover and replace the ten
screws
to secure it to the chassis.
FIGURE 1:


j103
(DEFAULT) 26 dB GAIN
j103
(ALTERNATE) 32 dB GAIN
jUMPERS
FIGURE 2:


1 2 3
1 2 3
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