ATI Technologies AT602 User Manual download pdf (Page 5)

Heat Sinks

Because we design our amplifiers for the

home as well as the rigorous demands of

commercial applications, we use substantial

heat sinks for each channel. This results in

amplifiers that run absolutely quietly and

as coolly as possible. The result; there is no

noise to mar your listening experience and

your amplifier operates more efficiently

for a longer life. These over-size heat sinks

eliminate the need for fans that add noise

and introduce dust into the amplifier.

Circuit Boards

We use double-sided FR-4 glass epoxy

circuit boards in all of our products. Not only does a double-sided board handle twice the

electrical current that a single-sided board does, it produces much more solid connections

to the components on the board. The solder joints that secure the components to the

board cover both surfaces of the board, plus the inside of the hole into which the

component leads are inserted. As a result, our circuit boards are practically perfect,

with nearly zero failures due to bad connections and cold solder joints.

The components we use on our circuit boards also add to the quality of ATI products. All

of the gain stages in our products employ high-quality metal-film resistors with 1-percent

tolerances, to ensure that each and every circuit board functions exactly like the last.

Wiring

Open most multichannel power

amplifiers and you will see a “rat’s

nest”—dozens of wires running

haphazardly through the chassis.

Open up an ATI amplifier, though,

and you will see a clean layout,

with wires wrapped neatly in a

fiberglass cloth tubing originally

developed for the aerospace

industry. The tubing protects the

wire from both heat and

accidental damage.

Chassis-Mounted RCA Jacks

The gold-plated RCA input jacks on our

amplifiers are mounted directly to the rear

panel, instead of to a circuit board. While

this technique complicates assembly, it

results in a more robust connection, and

the jack cannot be accidentally broken off

by the tight-gripping RCA plugs used on

many audiophile interconnect cables.

In addition, our AT2000 and AT3000 Series

power amplifiers use XLR-type connectors

to make connections with the balanced

audio output from a preamplifier such as

our ATP8500.1 with balanced audio outputs.

Trouble-Free Circuit Breakers

Our higher power multi-channel amplifiers use magnetic circuit breakers to protect against

AC overloads. If the breaker trips, it’s a simple matter to reset it. Most amplifiers, however,

use fuses for overload protection; if a fuse blows, you must have the proper one available

to restore power to your amplifier.

Protection Circuits

ATI amplifiers employ lightning-fast optically-coupled protection circuits that are

completely removed from the signal path so they cannot affect the sound quality. These

protection circuits are designed to detect electrical “shorts” in speakers or speaker wires

and to sense electrical

“spikes.” If triggered, the

circuit will disengage the

output. The protection circuit

will sample the affected

circuit every 10 seconds

and will restore output

automatically when safe to

do so. This special feature

minimizes the chance of

your amplifier going out of

service just when you’ve

filled your home theater

with expectant guests.

AT2000 circuit board with heat sink

Fiberglass cloth tubing protects wires

Rear panel chassis-mount RCA jacks

Amplifiers on the assembly line

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ATI Technologies AT602 User Manual Page 5

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