14
Placement
Before you install an Evolution One amplifier into your system, please follow the
guidelines in this section to choose its proper location. This will facilitate a clean,
trouble-free installation.
Each Evolution One amplifier requires at least two inches (5 cm) of clearance
on each side and at least eight inches (20 cm) of clearance above the compo-
nent to provide adequate ventilation. An Evolution One amplifier channel meas-
ures 15.8 in. (40 cm) wide by 12.5 in. (31.6 cm) high by 21.5 in.(54.7 cm) deep
and weighs 150 lbs. (67.9 kg).
Although Evolution Bias circuitry reduces the high heat dissipation and heat out-
put of traditional Class A circuitry, Evolution One amplifiers still can become hot
under normal operation. When the front and rear of a cabinet are open, the air
space between the chassis and shelf must be unobstructed. If you place the
amplifier in a closed cabinet, you may need to modify shelf spacing or use small
fans to increase ventilation.
Place the amplifier as close to the loudspeakers as possible. Although Krell CAST
technology permits you to use interconnect cables of any length, try to keep the
cable length to a minimum. All Evolution One amplifiers drive the lowest imped-
ances with ease. When impedance is added due to long loudspeakers cable
lengths, amplifier power is wasted in the cable. Long loudspeakers cables reduce
the maximum power that is delivered in the loudspeakers.
AC Power Guidelines
Each Evolution One amplifier channel needs to be operated from a dedicated AC
circuit rated at a minimum of 20 amps. A 30 amp AC circuit is preferable, but not
required.
Use the power cord shipped with the amplifier channel to make the AC connection.
Operation with a power cord other than the one supplied by Krell may induce
noise, limit current, or otherwise impair the amplifier’s ability to perform optimally.
(SECTION TWO: Unpacking and Placement continued)
