Navison Audio NVS - 211SE Setup And Operation Manual - page 7
Operation
Your new amplifier is ready for operation after the speaker cables, interconnect cables and the
tubes have been installed.
WARNING!
Off-On Power Toggle Switch
Push the AC toggle switch toward the rear, to the “ON” position. The 6SL7 input tubes, 6V6
driver tubes and the 211 output tubes will light up in this setting.
‘Break In’ Period
The tubes, capacitors and the output transformers take approximately 100 hours of music playing
to fully settle in for peak performance. Small imperfections in the tube surfaces will ‘boil off’
during the break in period as well. The amplifier will sound good right out of the box but it will
improve as break in occurs. After the first couple of hours you will notice increased depth and
tighter bass. This break in period is true with most high performance audio amplifiers.
Cleaning and Care of Finish
The chassis may be cleaned with a soft towel and Windex
®
or a similar gentle window cleaner.
The relative frequency of cleaning will be governed by operating environmental cleanliness. Spray
the cleaner on the towel, not on the amplifier! Avoid abrasive cleaners! Feather dusters are good
for cleaning the amp and the tubes when it is cool, not when ON.
Replacing Vacuum Tubes
If it becomes necessary to replace the tubes, the same brand as installed new should be used.
A complete new tube kit is available from Navison audio Design. Although useful tube life varies
depending on the nature and degree of use, under normal home use, the 211 output tubes
should last many years in the NVS-211SE. The 6V6 driver and 6SL7 input tubes should last
even longer.
NOTE:
Any current production or New Old Stock (NOS) types of 211, 6V6 and 6SL7 tubes will
work fine in the NVS-211SE amplifier. The voltages are fine for all available types.
NVS-211SE Owner’s Manual
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