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KOOL BLACK - Rear Panel Features

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5
VOLUME 1 and VOLUME 2 are switchable by the VOLUME button on the footswitch
VOLUME 2 (=SVC): This Volume is identical to Volume 1. By setting Volume 2 to a higher level
you can boost your solo’s and/or increase headroom of your clean(er) sounds
ON/STANBY: Leave this in STANDBY mode for at least 1 minute for maximum tube life, switch
to ON mode when you are ready to use the amp. Place back in STANDBY mode when you’re not
using the amp for a break.
ON/OFF: Turn this ON to power the amp. Leave amp in STANDBY MODE for at least 1 minute.
The amp reaches it electrical/musical sweet spot within 10 minutes and then stabilizes to
deliver hours and hours of heavenly tone.
POWERLAMP: This lights up when the amp is powered.
REAR PANEL
MAINS INLET (IEC Socket): Please only use the correct mains cord for your territory!
The mains inlet contains a slide where the mains fuse is located. Always use the correct rating
and type of fuse indicated as indicated on the back of your amplifier.
HT FUSE: The HT or ‘High Tension’ fuse protects the high voltage for the tube supply. If this
fuse blows, the first step is to replace it with an identical fuse. Always use the correct rating
and type of fuse as indicated on the back of your amplifier. The HT fuse may sometimes blow
due to ‘flash-over’ inside an output tube. This is where during the manufacturing process, not
all of the gas is removed from the glass envelope and the ‘getter’ inside the tube, usually made
from barium or magnesium oxide, will burn or evaporate these remaining gasses resulting in
the common silvered internal surface of the tube. This process, which is more likely to happen
with new equipment, draws high current momentarily and can blow the HT fuse. It will rarely
cause any damage so just replacing the fuse is sufficient to get the amp running normally
again. However, if the HT FUSE repeatedly blows, it may indicate a serious tube failure where
internal parts of a tube are shorted and in this case the amplifier needs to be checked by a
qualified engineer to assess the problem.
SPEAKER OUTPUT: Plug your speaker cabinet(s) in here.
Warning!: We strongly advise to not mismatch your amp with the speaker cabinet.