Krell Industries Stereo Preamplifie Stereo Amplifier User Manual


 
Q. I have some very fine audiophile interconnect cable
which has superior sonic characteristics. Can I use this
for my coaxial digital input?
¯
A. You may experiment with any high quality cable. Do
note, that most audio interconnect cable is not designed "
to carry the ultra high frequency information of the digi-
tal bit stream.
NOTE: For the STEALTH, we recommend non-capaci-
tive coaxial cable which has a bandwidth in excess of
10MHZ and excellent shielding properties.
Q. While listening to my STEALTH I experience occa-
sional periods of silence through my speakers. Is my
processor malfunctioning?
A. Drop outs are caused by two primary reasons. First,
drop outs can be caused by Data corruption. Corrup.tion
in the data may be due to a poor input connection, dam-
aged or dirty source material, or interconnects which d.o
not have a wide enough bandwidth. The second item tlaat
causes the processor to reset is the presence of a transient
spike on the incoming AC power line. The processor is
resetting all of its digital processing circuits so tlaat it can
be assured that all its circuits are properly synchronized.
Try changing your source material and check your con-
nections. If these are not the cause, speak with your
dealer about obtaining different cabling. If you are using
fiber optics, and source material and connections are not
the problem, speak with your authorized dealer.
Q. Since I installed the processor in my system I have a
low level hum that increases as I turn up the volume.
There was no hum in my system until I added the proces-
sor. Is the processor malfunctioning?
A. The fact that there was no hum in your syste~n until
you added the processor indicates that you have a
ground-loop problem. Often changing the interconnect to
a fibre optic cable will eliminate this problem. The way
the digital processor and digital source are connected to
the AC mains often can be t-he cause of grounding prob-
lems. Lif~tingthe ground on a specific component ~y
means ot a three prong to two prong AC adaptor(Cheater
plug) will often solve the probIem. Check for loose inter-
connect cables and or bad electrical connections. Consult
your dealer or Krell for individual system suggestions if
this hum persists.
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