![SUPRO 1697R Galaxy Head User Manual Download Page 5](http://html1.mh-extra.com/html/supro/1697r-galaxy-head/1697r-galaxy-head_user-manual_1406467005.webp)
BASS
Controls the level of bass frequencies of Channel 2.
MID
Controls the level of midrange frequencies of Channel 2.
STANDBY SWITCH
This turns on the high voltage to the tubes. The tubes should warm up for at least
one minute before turning standby switch to OPERATE. Be sure that the Volume
control is set to a reasonable position before switching the amp to OPERATE as this
amp can be very loud! For short breaks (5 minutes or less), using the standby switch
will increase tube life.
PILOT LIGHT
This shows that AC Mains voltage is flowing to the amplifier.
POWER SWITCH
Turns on AC power to the amp. The Power switch should be turned on, and the pilot
light should be lit for 1 minute before turning the standby switch to ON.
2.2
Rear Panel
IEC POWER CORD RECEPTACLE / Fuse holder
The power cord connects here and to your country’s appropriate wall outlet. Make
sure to connect the male end of the IEC POWER CORD into a Grounded Power
Outlet. This IEC connector contains the AC Mains fuse. This is a 5x20mm, 3A,
250V Fuse.
Speaker Outputs
The Galaxy provides two 4-Ohm, two 8-Ohm, and one 16-Ohm speaker output.
Which output jack you use, depends on the configuration of your speaker cabinet
or cabinets. For instance, when using a single 8 Ohm speaker, connect the speaker
cabinet to one of the 8 Ohm jacks. If using two 8-Ohm speakers or cabinets, plug
them both into the 4-Ohm jacks. (Two 8-Ohm loads connected in parallel add up
to a 4-Ohm total load). If using a 16-Ohm cabinet, plug it into the 16-Ohm output.
A speaker must always be connected to at least one output. Do not turn the
amp on without a speaker plugged in.
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