OWNERS MANUAL
MANUAL NO. 01 REV. DATE: 2/2008
High Fidelity Engineering Co.
MORE INFORMATION ON THIS PRODUCT CAN BE FOUND ON www.decware.com
DECWARE
tm
MAINTENANCE CONTINUED
Products like Caig DeOxit, ProGOld and other contact cleaners/enhancers can also
be used as part of a regular maintenance program. Basically whenever you unhook
your amplifier, you should clean the jacks. If you never unhook your amplifier,
you should unhook it at least every 6 months and clean all the jacks.
The amplifier is self biasing so there is no maintenance or adjustments to make
after you install new tubes.
POWER CORDS and CONDITIONING
Upgraded power cords can and do make a difference when the overall strength of
the audio chain begins to show a stock power cord as a weak link. It should be
stated that we’ve heard as many high dollar power cords do little to improve
things as we care to admit. However some are very noticeable. None will justify
spending a grand or more unless you’ve gone off the deep end and wiring your en-
tire breaker box with silver/Teflon and etc.
It makes little sense to invest too much in a power cord if your going to plug it
directly into the wall outlet because far more of a problem than the cord itself
is the dirty power coming from the outlet. What does make sense is to purchase a
simple isolation transformer rated for 500 Watts or so and use that to decouple
yourself from the grid and all the nasty harmonics that float in it. Then take a
good power cord plugged into the isolation transformer and you will have a re-
sult.
TWEAKS
The biggest thing regarding tweaking the amplifier itself is going to be tubes.
Every tube, even those sharing the same numbers, will sound slightly different.
Rolling tubes, in particular the input tube, with other brands and or NOS (New
Old Stock) can yield some very synergistic effects. Beyond that the only really
thing left would be vibration control. As you can see the amp is built like an
army tank of thick steel so it’s not prone to resonate like a thin chassis will.
Things like tube dampers and high mass stands or spikes in various combinations
can further improve focus.
(10 Seiten)
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