Infinity 5350A, 1600A, 475A, 1300A User Manual

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INFINITY®REFERENCE AMPLIFIERS

Looking for a more moving audio experience? Take Infinity

car audio for a ride. Innovative materials and breakthrough

engineering have always put Infinity products out in front of the

competition. So expect extreme output from Reference Series amps,

but be prepared for accuracy and detail that may surprise you. There

is no better way to make your car audio system stand up and deliver

than by powering your speakers and subs with Infinity electronics.

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CLASS D SUBWOOFER AMPS

Efficiency is the benefit of the Infinity

Reference Series Class D subwoofer amplifiers.

A higher percentage of the power the amp

extracts from the car’s charging system is

converted into output to the speakers, and less

is wasted as heat. That is really important if

you're trying to provide power to a 1000-watt

amplifier. Class D technology turns the analog

input signal into a series of pulses that can be

amplified more efficiently by transistors used

as switches, rather than valves. They're either

on and operating at their most efficient level,

or they’re off. The pulses are converted back

into an analog signal by an output filter.

CEA-2006-COMPLIANT

All Infinity amplifiers are tested in accordance

with CEA-2006, which provides a testing

procedure to help customers compare

amplifiers accurately – apples to apples.

Specs are based on industry-accepted

standards, rather than on the whims of

amplifier companies’ marketing departments.

Look for the CEA-2006 logo when comparing

amplifiers, to be sure you’re getting the

power you’re paying for.

AUDIOPHILE-QUALITY
FULL-RANGE AMPLIFIERS

DBO BASS-OPTIMIZATION CIRCUIT

provides superior control and adjustability,

compared to traditional bass-boost. DBO is a

2nd order high-pass filter that can be adjusted

between 20Hz and 80Hz. The boost (or Q)

adjustment boosts the signal above the high-

pass filter frequency. Used with a sealed box, it

can help to increase output for more “fun” if

it’s set to about 45Hz. If it’s used with a vented

box, it should be set at or slightly below the

tuned frequency of the box. That will prevent

woofer unloading, and provide more output at

the frequency where the box is tuned and the

woofer’s excursion is minimized – where it can

handle more power.

ONBOARD ELECTRONIC CROSSOVERS

Reference Series amplifiers include 2nd order

(12dB/octave) slopes and are continuously

variable from 32Hz to 200Hz.

VARIABLE BASS-BOOST

provides up to 12dB of boost at 50Hz in the

Reference Series full-range amplifiers.

DIRECT-CONNECT TERMINALS

eliminate the need for additional solder-on or

crimp-on terminals and provide an easy and

reliable connection for power, ground and

speaker wires.

Class AB full-range amplifiers offer audiophile-

quality performance and the best compromise

between efficiency, low distortion, maximum

available headroom and output power.

AMPS THAT DON’T BREAK

Infinity amplifiers are tested according to the

strictest and most demanding reliability-testing

regimen ever designed for car audio amplifiers.

They are shaken, baked, frozen, dropped and

shocked – all while they’re operating. When

they’ve passed all these tests, they are tested

again. The result is a series of amplifiers that

just don’t break.

FULL-RANGE PREAMP OUTPUTS

eliminate the need for signal splitters.

INCLUDED REMOTE LEVEL CONTROL

The amount of bass in popular recordings

differs greatly from track to track. Give your

customer as much control as you see fit with

the RLC. It varies the output of the amplifier

from no output up to the maximum output level

that you set with the input sensitivity control.

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except 4-channel

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