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Krell Industries Preamplifier KBL Owner's Manual page 11

Krell industries inc. preamplifier owner's manual

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Four inches clearance should be allowed above the top of either the
KBL or KPA. Only a small amount of clearance is needed on the
sides. Four to six inches clearance should be allowed at the rear of
either unit to provide for cables.
3. The units can be stacked. KPA(s) should be placed on the bottom
with KBL(s) on top.
KPA(s) are sensitive
to induced hum from motors or power
supplies. In general, they should be located at least one foot from
other components (with the exception of the KBL). In particular,
power supplies,
tape recorders,
and turntables
should be more
than a foot away from the KPA(s).
b. Preamplifier Installation
Place the preamplifier(s) in position. Check that all cable lengths are
adequate at this point.
c. Power Supply Location Guidelines
1. The KBL supply measures 9.75" wide, 12" deep, 2.25" high
The KPA supply measures 7.25" wide, 7.75" deep, 2.5" high
(Only KPA not powered from a KBL have a separated supply)
2. Six foot AC and DC cables are provided with the supply(s).
Plan the respective
position of the supply(s) and preamplifier(s)
within these distances. Allow at least a small amount of cable to be
excess, so neither cable is pulled tight. Contact the factory if the DC
cable is too short. Any attempt to extend it jeopardizes the power
supply and the preamp, and will void the unit's warranty.
3. Although well shielded, the power supply(s) should not be placed
close to hum-sensitive
components such as turntables,
phono
preamps or tape recorders.
4. Allow ample air space around the supply(s) for heat dissipation.
Five inches on top and two inches on each side is adequate. Two
supplies should not be placed directly
on top of each other. They
should be placed side-to-side.
5. The KBL or KPA supplies do not require that an ACV circuit
be
dedicated for their use. They should be connected to a 15 or 20 amp
circuit
that is dedicated
for the source components and the
preamplifiers.
Do not connect them to the mains with light-gauge
(18 or higher) extension cords or multiple outlet
adapters.
extension cords, outlet strips and good quality surge protectors that
are rated for 15 amps and grounded are acceptable.

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