Crown Audio CROWN K Series - Manual (Page 12)

K Series Power Amplifiers
page 12 Operation Manual
NOTE: For detailed information about these Crown
amplifier features, please consult the Crown Amplifier
Application Guide, available on the Crown website at
www.crownaudio.com.
5.1 Protection Systems
Your Crown amplifier provides extensive protection sys-
tems, including protection against shorted outputs, open
circuits, DC, mismatched loads, general overheating,
high-frequency overloads and internal faults.
5.1.1 TLC
If the amplifier starts to overheat, the thermal level con-
trol system will subtly and dynamically reduce the gain as
needed. Transformer overheating (extremely unlikely)
will result in a temporary shutdown. When the amplifier
has cooled to a safe temperature, the transformer will
automatically reset itself.
5.1.2 Out-of-band Filtering
An 8-Hz high-pass filter protects the amplifier and loads
from subsonic frequencies. A 30 kHz low-pass filter
offers protection from ultrasonic frequencies.
5.1.3 Inrush Limiting
The “soft-start” feature prevents the amplifier from draw-
ing a large inrush current when it is first turned on.
5.1.4 Fuse
A fuse is provided to protect the power supplies from
excess current. It is located on the back panel below the
power cord.
K-Series amplifiers that are configured to use 100-120
VAC power should use the following fuses:
K2: 20-amp fuse
K1: 15-amp fuse.
K-Series amplifiers that are configured to use 200-250
VAC should use the following fuses:
K2: 10-amp fuse.
K1: 8-amp fuse.
5.2 Advanced Features
• BCA (Balanced Current Amplifier) technology allows high
levels of power output without all the associated heat found
in a conventional amplfifier. This highly efficient design
works without using a cooling fan.
• Accurate, uncolored sound with very low distortion.
• High damping factor for tight, clean bass response.
• Advanced design for energy conservation.
• Versatile, handling a wide range of speaker impedances and
outputs.
• Switchable input sensitivity.
• “Soft Start” feature prevents the amplifier from drawing large
currents whenit is first turned on.
• Can be mounted in standard 19-inch (48.3-cm) rack.
Uniquely molded, cast-aluminum front panel provides
exceptional air circulation.
• Advanced protection circuitry guards against shorted out-
puts, open circuits, DC, mismatched loads, general over-
heating, high-frequency overloads and internal faults.
• Mono mode switches allow you to set up your amps/speak-
ers in the configuration that best suits your needs, with
combined amp inputs, combined amp outputs, or both.
• Backed by the industry’s ONLY three-year, no-fault, fully
transferable warranty.
5 Advanced Features