Instruction Manual

FRONT PANEL
POWER SWITCH: Turn this ON to power the amplifier. Wait for about one minute before taking the amp
OUT of STANDBY playing for maximum tube life. There is an indicator lamp to provide a gentle
reminder to let you know your amp is ON.
STANDBY SWITCH: Turn ON this switch to put the amp in play mode. Wait a minute before turning this
on for maximum tube life.
PRESENCE CONTROL: (Global) This adds or takes away upper mids and highs. Start at about 5 and adjust
to taste. This pot will have a scratchy sound. This is normal.
DEEP CONTROL : (Global) Adjusts the low-end response in the power section.
BASS CONTROL : (Separate-each channel) This adds or takes away bass or bottom end. As the amp gets
louder you may want to back this off a bit. Start at 5 and adjust to taste.
MIDDLE CONTROL : (Separate-each channel) Adds or takes away midrange. Start at 7-8, lower settings
will scoop the mids, higher levels will allow your audience to actually hear the guitar in the mix.
TREBLE CONTROL: (Separate-each channel) This adds or takes away treble. Start at 5 and adjust to
taste.
MASTER CONTROL : (Separate-each channel) This is the Twin Sister’s MASTER VOLUME. The more you
turn it up the louder it gets.
GAIN CONTROL: (Separate-each channel) This adds gain/distortion. Adjust to taste. Don’t be afraid.
B1-B2 & S1-S2: Bright Switch and 3-position Gain Switch per Channel.
IN: Just like it says. This is the Twin Sister’s Guitar Input Jack. Plug your guitar or the output of your
pedal board here.
SW: Footswitch plugs in here.