Cabinetry Considerations; Ac Power Guidelines; Connecting The Kav-250A To Your System; Input And Output Connections - Krell Industries Amplifier KAV-250a Owner's Reference Manual

Placement, continued
be placed as close to the speakers as pos-
sible. Run long balanced interconnect
cables to the amplifier and keep the speak-
er cable length to a minimum. Speaker
cable adds impedance to the load the
amplifier must drive, regardless of the
cable's gauge. All Krell amplifiers will drive
the lowest impedances with ease, but when
impedance is added due to long cable
lengths, amplifier power is wasted in the
cable. Long speaker cables reduce the
maximum power that can be delivered to
the speakers.
CabMetry Considerations
The KAV-250a amplifier can become quite
warm under normal operation. Install the
KAV-250a in a location that provides unob-
structed ventilation. If you place the amplifi-
er in a closed cabinet, extra ventilation such
as modified shelf spacing may be neces-
sary. In extreme instances, small fans help
to removing excess heat from enclosed
spaces. In general, when the front and rear
of a cabinet is open, the amplifier has ade-
quate ventilation with two inches of clear-
ance on each side and eight inches of
clearance above and below.
AC Power Guidelines
For best performance, Krell ® recommends
using a dedicated AC power line rated at a
minimum of fifteen amps with the KAV-250a
amplifier. For maximum power output, the
KAV-250a should be operated from a dedi-
cated twenty amp AC power line. The
KAV-250a amplifier should only be operated
with the power cord supplied. Please consult
your dealer, distributor, or Krell ® before using
any devices designed to alter or stabilize the
AC power for the KAV-250a.
Connecting the KAV-250a
to Your System
WARNING
When making connections to this compo-
nent or any other, make sure the power
amplifier is Off and the preamplifier is in the
Mute or Stand-by mode. Make sure all cable
terminations are of the highest quality, free
from frayed ends, shorts, or cold solder joints.
Input and Output Connections
To prevent the introduction of hum or other
noise into the system, organize all wiring
between the KAV-250p and other system
components neatly. Separate AC wires from
audio cables.
1. Connect the cables from your speakers
to the output terminals of the amplifier.
The KAV-250a amplifier utilizes five-
way binding post speaker terminals for
the left and right channels. The speaker
terminals accept spade lugs, bare wire,
banana plugs, or pins. The red terminals
are used for positive connections and
the black terminals are used for the neg-
ative connections.
2. Connect the interconnect cables from
your preamplifier to the input terminals of
the amplifier.
The KAV-250a amplifier is equipped with
balanced and single-ended inputs. The
balanced inputs use three pin XLR con-
nectors and the single-ended inputs use
RCA connectors. Krell ® recommends
the
use of balanced interconnects. Balanced
interconnects not only have the ability to
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KRELL ® KAV-250a