Welcome; Unpacking; Features - Crown POWER-TECH 3 Reference Manual

Power-Tech Series Power Amplifiers

1 Welcome

Congratulations on purchasing a Crown Power-
Tech ™ amplifier. Power-Tech amplifiers are compact,
professional stereo power amplifiers engineered to
meet the most demanding sound reinforcement
needs. They compare very favorably to more expen-
sive amplifiers, providing uncolored sound and signal-
to-noise ratios commonly associated with recording
studios.
This manual will help you successfully install and
use your amplifier—we strongly recommend you read
all instructions, warnings and cautions. If you plan to
operate in one of the two mono modes, be sure to
read the Mono section. Also for your protection,
please save your bill of sale since it is your official
proof of purchase.

1.1 Unpacking

Please unpack and inspect your new amplifier
for any damage that may have occurred during
transit. If damage is found, notify the transportation
company immediately. Only you may initiate a claim
with the carrier for shipping damage. Even if the unit
arrived in perfect condition, as most do, save all
packing materials so you will have them if you ever
need to transport the unit. NEVER SHIP THE UNIT
WITHOUT THE FACTORY PACK.
Reference Manual
Fig. 1.1 Power-Tech Front and Back Panels

1.2 Features

Rugged, professional power amplifier built for the road.
Mounts in EIA standard 19-inch (48.3-cm) rack.
Quick-access front panel power switch and level
controls. Turn-on delay for loudspeaker protection.
The patented ODEP ®
design combine to provide performance and reliability
that surpass all traditional designs.
Easy to read signal presence (SPI) and distortion
( IOC ® ) indicator for each channel.
High damping factor provides superior control over
low-frequency drivers for a clean, accurate low end.
Safe with any load. Bridge-Mono and Parallel-Mono
modes make it easy to optimize the amplifier's perfor-
mance for a wide range of loads.
Complete protection against shorted outputs, mis-
matched loads, overheating, input/output DC and high-
frequency overload; full internal fault protection.
Balanced phone jack inputs with internal three position
sensitivity switch and front-panel level controls. XLR
and barrier block input connectors are optional.
Efficient heat sinks and self-contained forced-air
cooling system dissipate heat quickly and evenly for
extra amplifier protection and greater output power.
Three year "No-Fault" full warranty protects your
investment and guarantees its specifications.
circuitry and Grounded Bridge ™
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