R Series V1.0 p 17
Driving an extension cabinet - R100-212
WARNING: TO REDUCE THE RISK OF FIRE
OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR MOISTURE
LINE OUT
560 Ω
TOTAL MIN. Z 8 Ω 100 W. RMS
SPEAKER JACKS IN PARALLEL
USE FIRST
SPEAKER 1
SPEAKER 2
8 Ω
TO INTERNAL
SPEAKER
Using a heavy-gauge speaker cord, connect the output jack labeled Speaker 2 to the
speaker input on an extension cabinet with a 4- or 8-ohm impedance and power-
handling capacity of at least 100 watts. A 16-ohm extension cabinet can also be used in
conjunction with the internal speakers, but it will reduce the amp's output. Don't use a 2-
ohm extension speaker. Note: Make sure that the Speaker 1 output is connected to the
Hundred Duo Twelve's internal speaker.
Driving two speaker cabinets - R100-212 only
WARNING: TO REDUCE THE RISK OF FIRE
OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR MOISTURE
LINE OUT
560 Ω
TOTAL MIN. Z 8 Ω 55 W. RMS
SPEAKER JACKS IN PARALLEL
USE FIRST
SPEAKER 1
SPEAKER 2
8 Ω 8 Ω
This setup is for employing the Hundred Duo Twelve as a head; its speaker is
nonfunctional in this configuration. Unplug the internal speaker from the Speaker 1
output jack. Using heavy-gauge speaker cords, connect the output jacks labeled
Speaker 1 and Speaker 2 to the speaker inputs on extension cabinets with an 8-ohm
impedance and power-handling capacity of 100 watts. You can also hook up two 16-
ohm cabinets or two 4-ohm cabinets, but never use two 2-ohm cabinets, because the
overall impedance load will be too low for the amplifier and could result in damage.
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