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Rear Panel
AC Power Inlet -
This is the receptacle for an IEC line cord, which provides AC power to the unit. Connect the line cord
to this connector to provide power to the unit. Damage to the equipment may result if improper line
voltage is used. (See line voltage marking on unit).
Never break off the ground pin on any equipment. It is provided for your safety. If the outlet used does
not have a ground pin, a suitable grounding adapter should be used and the third wire should be
grounded properly. To prevent the risk of shock or fire hazard, always make sure that the amplifier and
all associated equipment is properly grounded.
Note: For UK Only
As the colors of the wires in the mains lead of this apparatus may not correspond with the colored
markings identifying the terminals in your plug, proceed as follows: (1) The wire which is colored green
and yellow must be connected to the terminal which is marked by the letter E, or by the Earth symbol,
or colored green or green and yellow. (2) The wire which is colored blue must be connected to the
terminal which is marked with the letter N, or the color black. (3) The wire which is colored brown must
be connected to the terminal which is marked with the letter L, or the color red.
To avoid the risk of electrical shock, do not place fingers or any other objects into empty tube sockets
while power is being supplied to unit.
External Speaker Jacks -
Provided for connection of external speaker cabinets. Load Impedance is selectable via the IMPEDANCE
SELECTOR (15) on the Windsor Studio.
Impedance Selector -
This three position switch allows appropriate selection of speaker cabinet impedance. If two enclosures
of equal impedance are used, the switch should be set to half of the value of the two individual
cabinets. For instance, two 16 Ohm enclosures necessitate an 8 Ohm setting, while two 8 Ohm
enclosures would require a 4 Ohm setting. Minimum recommended load impedance is 4 Ohms.
Ground Lift -
Depress this switch to break any ground loops that may be causing hum between your amplifier and
recording device or PA system.
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