Jas-Audio BRAVO 2.3 - Manual (Page 3)

Preliminary
The front panel of Bravo 2.3 features a step-less negative feedback knob that regulates
amount of signal feedback in music playing for meeting individual preferences. Signal input
to 4 sets of RCA female plugs is selectable by the selector on the right of the panel. Power
switch is located on the left of the panel.
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Negative feedback knob Selector
It is important to be careful with tube installation. Please do not force
anything, easy does it! This precaution is mentioned to help you
obtain pleasing results and avoid damage! If you have any trouble
replacing or changing tubes, please don’t hesitate to call your dealer!
Tube Replacement
Caution: Make sure the amplifier has been unplugged for 30 minutes from the AC
mains before replacing the tubes. This is to avoid any risk of shock or discomfort from
high temperature. Although tube life span varies depending on the nature and degree of
use, the 6C33 output tubes and the 6J4P driver tubes should last years in the Bravo 2.3
under normal home use.
Cautionary Terms
When the following cautionary terms are used in this manual, these
definitions apply:
Electrical hazard! Misuse or failure to follow instructions properly
may result in personal injury or death!
CAUTION: No risk of personal injury; however, misuse or failure to
follow instructions may result in damage to equipment.
NOTE: No risk of personal injury or equipment damage; however,
misuse or failure to follow instructions may prevent proper
performance
NOS types of 6C33, 6J4P, 5AR4 tubes will work fine in the JAS Bravo 2.3 amplifier.
The amplifier voltage settings will also work fine with all compatible types.