Care and Maintenance
Placement
The amplifier must be placed on a hard flat surface with plenty of unobstructed space around the Power 2 to allow for free movement of air for proper cooling. If the amplifier is to be placed on a carpeted floor, a Wood, Ceramic, Concrete, Marble... tile or slab 18” x 22” (or larger) must be place under the Power 2 Amplifier.
If the amplifier is left unattended or is exposed near small children or pets, it is recom- mended that the tube cover be used. Cooling of the tubes is not as effective with the cover on, although it does allow for adequate operating temperatures.
To add the cover, simply place the cage over the tube top. The cover is locked through the tightening of the large screw heads on the sides located between the tube top and transformer case.
The location of the screw which locks the tube cover in place.
To remove the cover, loosen screws that were indicated for fastening. The Power 2’s fas- tening screw is spring loaded for release after it is loosened. Then while applying a small amount of outward tension at the screw locations, lift the cover straight up and away from the tubes.
If the tube cover is not used, it is recommended that the tubes, namely the 6550C/KT88s are protected from settling dust in
How do I know when to replace the tubes?
If the tubes lack power to drive your speakers, are hard to bias or won’t hold bias, it could be time for replacements. Power tubes generally wear faster then small signal tubes, but how much faster depends on how often you run your system. If you need help determining these factors or sourcing replacement tubes, contact your Sonic Frontiers dealer, Sonic Frontiers or The Parts Connection (a division of Sonic Frontiers,
Cleaning
Sonic Frontiers recommends only a dry cloth be used to clean the Power 2 Amplifier.
Sonic Frontiers does not warranty damage done through liquids spilled on circuitry.
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